9.8
CRITICAL
CVE-2021-3177
"Microsoft Windows ctypes Buffer Overflow Vulnerability"
Description

Python 3.x through 3.9.1 has a buffer overflow in PyCArg_repr in _ctypes/callproc.c, which may lead to remote code execution in certain Python applications that accept floating-point numbers as untrusted input, as demonstrated by a 1e300 argument to c_double.from_param. This occurs because sprintf is used unsafely.

INFO

Published Date :

Jan. 19, 2021, 6:15 a.m.

Last Modified :

Nov. 7, 2023, 3:37 a.m.

Remotely Exploitable :

Yes !

Impact Score :

5.9

Exploitability Score :

3.9
Public PoC/Exploit Available at Github

CVE-2021-3177 has a 5 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

Affected Products

The following products are affected by CVE-2021-3177 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Oracle zfs_storage_appliance_kit
2 Oracle communications_pricing_design_center
3 Oracle enterprise_manager_ops_center
4 Oracle communications_offline_mediation_controller
5 Oracle communications_cloud_native_core_network_function_cloud_native_environment
1 Netapp active_iq_unified_manager
2 Netapp ontap_select_deploy_administration_utility
1 Fedoraproject fedora
1 Debian debian_linux
1 Python python
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2021-3177.

URL Resource
https://bugs.python.org/issue42938 Exploit Issue Tracking Patch Vendor Advisory
https://github.com/python/cpython/pull/24239 Patch Third Party Advisory
https://lists.apache.org/thread.html/rf9fa47ab66495c78bb4120b0754dd9531ca2ff0430f6685ac9b07772%40%3Cdev.mina.apache.org%3E
https://lists.debian.org/debian-lts-announce/2021/04/msg00005.html Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/02/msg00013.html Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2023/05/msg00024.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BRHOCQYX3QLDGDQGTWQAUUT2GGIZCZUO/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CCFZMVRQUKCBQIG5F2CBVADK63NFSE4A/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FONHJIOZOFD7CD35KZL6SVBUTMBPGZGA/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FPE7SMXYUIWPOIZV4DQYXODRXMFX3C5E/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HCQTCSP6SCVIYNIRUJC5X7YBVUHPLSC4/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MGSV6BJQLRQ6RKVUXK7JGU7TP4QFGQXC/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MP572OLHMS7MZO4KUPSCIMSZIA5IZZ62/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NODWHDIFBQE5RU5PUWUVE47JOT5VCMJ2/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NQPARTLNSFQVMMQHPNBFOCOZOO3TMQNA/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NXSMBHES3ANXXS2RSO5G6Q24BR4B2PWK/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/V6XJAULOS5JVB2L67NCKKMJ5NTKZJBSD/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Y4KSYYWMGAKOA2JVCQA422OINT6CKQ7O/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YDTZVGSXQ7HR7OCGSUHTRNTMBG43OMKU/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Z7GZV74KM72O2PEJN2C4XP3V5Q5MZUOO/
https://news.ycombinator.com/item?id=26185005 Third Party Advisory
https://python-security.readthedocs.io/vuln/ctypes-buffer-overflow-pycarg_repr.html Patch Third Party Advisory
https://security.gentoo.org/glsa/202101-18 Third Party Advisory
https://security.netapp.com/advisory/ntap-20210226-0003/ Third Party Advisory
https://www.oracle.com//security-alerts/cpujul2021.html Patch Third Party Advisory
https://www.oracle.com/security-alerts/cpujan2022.html Patch Third Party Advisory
https://www.oracle.com/security-alerts/cpujul2022.html Patch Third Party Advisory
https://www.oracle.com/security-alerts/cpuoct2021.html Patch Third Party Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

None

Updated: 3 months ago
0 stars 0 fork 0 watcher
Born at : Aug. 23, 2024, 8:15 a.m. This repo has been linked 3 different CVEs too.

Map Vulnerabilities into Different Layers of the Container Image

Python

Updated: 1 year, 10 months ago
1 stars 0 fork 0 watcher
Born at : Oct. 5, 2022, 12:07 p.m. This repo has been linked 1276 different CVEs too.

None

Updated: 8 months, 2 weeks ago
4 stars 0 fork 0 watcher
Born at : April 18, 2022, 3:49 p.m. This repo has been linked 3 different CVEs too.

None

Dockerfile Python

Updated: 3 years, 8 months ago
0 stars 0 fork 0 watcher
Born at : March 16, 2021, 3:38 p.m. This repo has been linked 1 different CVEs too.

Repository for the edkrepo utility

Python Batchfile C# Shell

Updated: 3 months ago
21 stars 24 fork 24 watcher
Born at : Feb. 4, 2021, 11:14 p.m. This repo has been linked 1 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2021-3177 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-3177 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Nov. 07, 2023

    Action Type Old Value New Value
    Added Reference MITRE https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MGSV6BJQLRQ6RKVUXK7JGU7TP4QFGQXC/ [No types assigned]
    Added Reference MITRE https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NQPARTLNSFQVMMQHPNBFOCOZOO3TMQNA/ [No types assigned]
    Added Reference MITRE https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Z7GZV74KM72O2PEJN2C4XP3V5Q5MZUOO/ [No types assigned]
    Added Reference MITRE https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CCFZMVRQUKCBQIG5F2CBVADK63NFSE4A/ [No types assigned]
    Added Reference MITRE https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BRHOCQYX3QLDGDQGTWQAUUT2GGIZCZUO/ [No types assigned]
    Added Reference MITRE https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NXSMBHES3ANXXS2RSO5G6Q24BR4B2PWK/ [No types assigned]
    Added Reference MITRE https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/V6XJAULOS5JVB2L67NCKKMJ5NTKZJBSD/ [No types assigned]
    Added Reference MITRE https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YDTZVGSXQ7HR7OCGSUHTRNTMBG43OMKU/ [No types assigned]
    Added Reference MITRE https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Y4KSYYWMGAKOA2JVCQA422OINT6CKQ7O/ [No types assigned]
    Added Reference MITRE https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FPE7SMXYUIWPOIZV4DQYXODRXMFX3C5E/ [No types assigned]
    Added Reference MITRE https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HCQTCSP6SCVIYNIRUJC5X7YBVUHPLSC4/ [No types assigned]
    Added Reference MITRE https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NODWHDIFBQE5RU5PUWUVE47JOT5VCMJ2/ [No types assigned]
    Added Reference MITRE https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MP572OLHMS7MZO4KUPSCIMSZIA5IZZ62/ [No types assigned]
    Added Reference MITRE https://lists.apache.org/thread.html/rf9fa47ab66495c78bb4120b0754dd9531ca2ff0430f6685ac9b07772%40%3Cdev.mina.apache.org%3E [No types assigned]
    Added Reference MITRE https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FONHJIOZOFD7CD35KZL6SVBUTMBPGZGA/ [No types assigned]
    Removed Reference MITRE https://lists.fedoraproject.org/archives/list/[email protected]/message/NQPARTLNSFQVMMQHPNBFOCOZOO3TMQNA/
    Removed Reference MITRE https://lists.fedoraproject.org/archives/list/[email protected]/message/MGSV6BJQLRQ6RKVUXK7JGU7TP4QFGQXC/
    Removed Reference MITRE https://lists.fedoraproject.org/archives/list/[email protected]/message/Z7GZV74KM72O2PEJN2C4XP3V5Q5MZUOO/
    Removed Reference MITRE https://lists.fedoraproject.org/archives/list/[email protected]/message/CCFZMVRQUKCBQIG5F2CBVADK63NFSE4A/
    Removed Reference MITRE https://lists.fedoraproject.org/archives/list/[email protected]/message/BRHOCQYX3QLDGDQGTWQAUUT2GGIZCZUO/
    Removed Reference MITRE https://lists.fedoraproject.org/archives/list/[email protected]/message/V6XJAULOS5JVB2L67NCKKMJ5NTKZJBSD/
    Removed Reference MITRE https://lists.fedoraproject.org/archives/list/[email protected]/message/NXSMBHES3ANXXS2RSO5G6Q24BR4B2PWK/
    Removed Reference MITRE https://lists.fedoraproject.org/archives/list/[email protected]/message/YDTZVGSXQ7HR7OCGSUHTRNTMBG43OMKU/
    Removed Reference MITRE https://lists.fedoraproject.org/archives/list/[email protected]/message/Y4KSYYWMGAKOA2JVCQA422OINT6CKQ7O/
    Removed Reference MITRE https://lists.fedoraproject.org/archives/list/[email protected]/message/FPE7SMXYUIWPOIZV4DQYXODRXMFX3C5E/
    Removed Reference MITRE https://lists.fedoraproject.org/archives/list/[email protected]/message/HCQTCSP6SCVIYNIRUJC5X7YBVUHPLSC4/
    Removed Reference MITRE https://lists.fedoraproject.org/archives/list/[email protected]/message/NODWHDIFBQE5RU5PUWUVE47JOT5VCMJ2/
    Removed Reference MITRE https://lists.fedoraproject.org/archives/list/[email protected]/message/MP572OLHMS7MZO4KUPSCIMSZIA5IZZ62/
    Removed Reference MITRE https://lists.apache.org/thread.html/rf9fa47ab66495c78bb4120b0754dd9531ca2ff0430f6685ac9b07772@%3Cdev.mina.apache.org%3E
    Removed Reference MITRE https://lists.fedoraproject.org/archives/list/[email protected]/message/FONHJIOZOFD7CD35KZL6SVBUTMBPGZGA/
  • CVE Modified by [email protected]

    May. 24, 2023

    Action Type Old Value New Value
    Added Reference https://lists.debian.org/debian-lts-announce/2023/05/msg00024.html [No Types Assigned]
  • Modified Analysis by [email protected]

    Dec. 06, 2022

    Action Type Old Value New Value
    Changed Reference Type https://www.oracle.com/security-alerts/cpujul2022.html No Types Assigned https://www.oracle.com/security-alerts/cpujul2022.html Patch, Third Party Advisory
    Changed CPE Configuration OR *cpe:2.3:a:netapp:active_iq_unified_manager:-:*:*:*:*:linux:*:* *cpe:2.3:a:netapp:active_iq_unified_manager:-:*:*:*:*:vsphere:*:* *cpe:2.3:a:netapp:active_iq_unified_manager:-:*:*:*:*:windows:*:* *cpe:2.3:a:netapp:ontap_select_deploy_administration_utility:-:*:*:*:*:*:*:* OR *cpe:2.3:a:netapp:active_iq_unified_manager:-:*:*:*:*:vmware_vsphere:*:* *cpe:2.3:a:netapp:active_iq_unified_manager:-:*:*:*:*:windows:*:* *cpe:2.3:a:netapp:ontap_select_deploy_administration_utility:-:*:*:*:*:*:*:*
    Changed CPE Configuration OR *cpe:2.3:a:oracle:communications_offline_mediation_controller:12.0.0.3.0:*:*:*:*:*:*:* *cpe:2.3:a:oracle:communications_pricing_design_center:12.0.0.3.0:*:*:*:*:*:*:* *cpe:2.3:a:oracle:enterprise_manager_ops_center:12.4.0.0:*:*:*:*:*:*:* *cpe:2.3:a:oracle:zfs_storage_appliance_kit:8.8:*:*:*:*:*:*:* OR *cpe:2.3:a:oracle:communications_cloud_native_core_network_function_cloud_native_environment:22.2.0:*:*:*:*:*:*:* *cpe:2.3:a:oracle:communications_offline_mediation_controller:12.0.0.3.0:*:*:*:*:*:*:* *cpe:2.3:a:oracle:communications_pricing_design_center:12.0.0.3.0:*:*:*:*:*:*:* *cpe:2.3:a:oracle:enterprise_manager_ops_center:12.4.0.0:*:*:*:*:*:*:* *cpe:2.3:a:oracle:zfs_storage_appliance_kit:8.8:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Jul. 25, 2022

    Action Type Old Value New Value
    Added Reference https://www.oracle.com/security-alerts/cpujul2022.html [No Types Assigned]
  • Modified Analysis by [email protected]

    Mar. 04, 2022

    Action Type Old Value New Value
    Changed Reference Type https://lists.debian.org/debian-lts-announce/2021/04/msg00005.html No Types Assigned https://lists.debian.org/debian-lts-announce/2021/04/msg00005.html Mailing List, Third Party Advisory
    Changed Reference Type https://lists.debian.org/debian-lts-announce/2022/02/msg00013.html No Types Assigned https://lists.debian.org/debian-lts-announce/2022/02/msg00013.html Mailing List, Third Party Advisory
    Changed Reference Type https://www.oracle.com//security-alerts/cpujul2021.html No Types Assigned https://www.oracle.com//security-alerts/cpujul2021.html Patch, Third Party Advisory
    Changed Reference Type https://www.oracle.com/security-alerts/cpujan2022.html No Types Assigned https://www.oracle.com/security-alerts/cpujan2022.html Patch, Third Party Advisory
    Changed Reference Type https://www.oracle.com/security-alerts/cpuoct2021.html No Types Assigned https://www.oracle.com/security-alerts/cpuoct2021.html Patch, Third Party Advisory
    Changed CPE Configuration OR *cpe:2.3:a:netapp:ontap_select_deploy_administration_utility:-:*:*:*:*:*:*:* OR *cpe:2.3:a:netapp:active_iq_unified_manager:-:*:*:*:*:linux:*:* *cpe:2.3:a:netapp:active_iq_unified_manager:-:*:*:*:*:vsphere:*:* *cpe:2.3:a:netapp:active_iq_unified_manager:-:*:*:*:*:windows:*:* *cpe:2.3:a:netapp:ontap_select_deploy_administration_utility:-:*:*:*:*:*:*:*
    Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
    Added CPE Configuration OR *cpe:2.3:a:oracle:communications_offline_mediation_controller:12.0.0.3.0:*:*:*:*:*:*:* *cpe:2.3:a:oracle:communications_pricing_design_center:12.0.0.3.0:*:*:*:*:*:*:* *cpe:2.3:a:oracle:enterprise_manager_ops_center:12.4.0.0:*:*:*:*:*:*:* *cpe:2.3:a:oracle:zfs_storage_appliance_kit:8.8:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Feb. 14, 2022

    Action Type Old Value New Value
    Added Reference https://lists.debian.org/debian-lts-announce/2022/02/msg00013.html [No Types Assigned]
  • CVE Modified by [email protected]

    Feb. 07, 2022

    Action Type Old Value New Value
    Added Reference https://www.oracle.com/security-alerts/cpujan2022.html [No Types Assigned]
  • CVE Modified by [email protected]

    Oct. 20, 2021

    Action Type Old Value New Value
    Added Reference https://www.oracle.com/security-alerts/cpuoct2021.html [No Types Assigned]
  • CVE Modified by [email protected]

    Jul. 20, 2021

    Action Type Old Value New Value
    Added Reference https://www.oracle.com//security-alerts/cpujul2021.html [No Types Assigned]
  • CVE Modified by [email protected]

    Apr. 05, 2021

    Action Type Old Value New Value
    Added Reference https://lists.debian.org/debian-lts-announce/2021/04/msg00005.html [No Types Assigned]
  • Modified Analysis by [email protected]

    Mar. 19, 2021

    Action Type Old Value New Value
    Changed Reference Type https://bugs.python.org/issue42938 Exploit, Patch, Vendor Advisory https://bugs.python.org/issue42938 Exploit, Issue Tracking, Patch, Vendor Advisory
    Changed Reference Type https://lists.apache.org/thread.html/rf9fa47ab66495c78bb4120b0754dd9531ca2ff0430f6685ac9b07772@%3Cdev.mina.apache.org%3E No Types Assigned https://lists.apache.org/thread.html/rf9fa47ab66495c78bb4120b0754dd9531ca2ff0430f6685ac9b07772@%3Cdev.mina.apache.org%3E Mailing List, Third Party Advisory
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/FONHJIOZOFD7CD35KZL6SVBUTMBPGZGA/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/FONHJIOZOFD7CD35KZL6SVBUTMBPGZGA/ Third Party Advisory
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/HCQTCSP6SCVIYNIRUJC5X7YBVUHPLSC4/ Mailing List, Third Party Advisory https://lists.fedoraproject.org/archives/list/[email protected]/message/HCQTCSP6SCVIYNIRUJC5X7YBVUHPLSC4/ Third Party Advisory
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/MP572OLHMS7MZO4KUPSCIMSZIA5IZZ62/ Mailing List, Third Party Advisory https://lists.fedoraproject.org/archives/list/[email protected]/message/MP572OLHMS7MZO4KUPSCIMSZIA5IZZ62/ Third Party Advisory
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/NODWHDIFBQE5RU5PUWUVE47JOT5VCMJ2/ Mailing List, Third Party Advisory https://lists.fedoraproject.org/archives/list/[email protected]/message/NODWHDIFBQE5RU5PUWUVE47JOT5VCMJ2/ Third Party Advisory
    Changed Reference Type https://security.netapp.com/advisory/ntap-20210226-0003/ No Types Assigned https://security.netapp.com/advisory/ntap-20210226-0003/ Third Party Advisory
    Added CPE Configuration OR *cpe:2.3:a:netapp:ontap_select_deploy_administration_utility:-:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Feb. 26, 2021

    Action Type Old Value New Value
    Added Reference https://security.netapp.com/advisory/ntap-20210226-0003/ [No Types Assigned]
  • CVE Modified by [email protected]

    Feb. 26, 2021

    Action Type Old Value New Value
    Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/FONHJIOZOFD7CD35KZL6SVBUTMBPGZGA/ [No Types Assigned]
  • CVE Modified by [email protected]

    Feb. 25, 2021

    Action Type Old Value New Value
    Added Reference https://lists.apache.org/thread.html/rf9fa47ab66495c78bb4120b0754dd9531ca2ff0430f6685ac9b07772@%3Cdev.mina.apache.org%3E [No Types Assigned]
  • Modified Analysis by [email protected]

    Feb. 25, 2021

    Action Type Old Value New Value
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/BRHOCQYX3QLDGDQGTWQAUUT2GGIZCZUO/ Mailing List, Third Party Advisory https://lists.fedoraproject.org/archives/list/[email protected]/message/BRHOCQYX3QLDGDQGTWQAUUT2GGIZCZUO/ Third Party Advisory
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/CCFZMVRQUKCBQIG5F2CBVADK63NFSE4A/ Mailing List, Third Party Advisory https://lists.fedoraproject.org/archives/list/[email protected]/message/CCFZMVRQUKCBQIG5F2CBVADK63NFSE4A/ Third Party Advisory
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/FPE7SMXYUIWPOIZV4DQYXODRXMFX3C5E/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/FPE7SMXYUIWPOIZV4DQYXODRXMFX3C5E/ Third Party Advisory
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/HCQTCSP6SCVIYNIRUJC5X7YBVUHPLSC4/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/HCQTCSP6SCVIYNIRUJC5X7YBVUHPLSC4/ Mailing List, Third Party Advisory
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/MGSV6BJQLRQ6RKVUXK7JGU7TP4QFGQXC/ Mailing List, Third Party Advisory https://lists.fedoraproject.org/archives/list/[email protected]/message/MGSV6BJQLRQ6RKVUXK7JGU7TP4QFGQXC/ Third Party Advisory
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/MP572OLHMS7MZO4KUPSCIMSZIA5IZZ62/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/MP572OLHMS7MZO4KUPSCIMSZIA5IZZ62/ Mailing List, Third Party Advisory
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/NODWHDIFBQE5RU5PUWUVE47JOT5VCMJ2/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/NODWHDIFBQE5RU5PUWUVE47JOT5VCMJ2/ Mailing List, Third Party Advisory
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/NQPARTLNSFQVMMQHPNBFOCOZOO3TMQNA/ Mailing List, Third Party Advisory https://lists.fedoraproject.org/archives/list/[email protected]/message/NQPARTLNSFQVMMQHPNBFOCOZOO3TMQNA/ Third Party Advisory
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/NXSMBHES3ANXXS2RSO5G6Q24BR4B2PWK/ Mailing List, Third Party Advisory https://lists.fedoraproject.org/archives/list/[email protected]/message/NXSMBHES3ANXXS2RSO5G6Q24BR4B2PWK/ Third Party Advisory
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/V6XJAULOS5JVB2L67NCKKMJ5NTKZJBSD/ Mailing List, Third Party Advisory https://lists.fedoraproject.org/archives/list/[email protected]/message/V6XJAULOS5JVB2L67NCKKMJ5NTKZJBSD/ Third Party Advisory
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/Z7GZV74KM72O2PEJN2C4XP3V5Q5MZUOO/ Mailing List, Third Party Advisory https://lists.fedoraproject.org/archives/list/[email protected]/message/Z7GZV74KM72O2PEJN2C4XP3V5Q5MZUOO/ Third Party Advisory
    Changed Reference Type https://news.ycombinator.com/item?id=26185005 No Types Assigned https://news.ycombinator.com/item?id=26185005 Third Party Advisory
  • CVE Modified by [email protected]

    Feb. 24, 2021

    Action Type Old Value New Value
    Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/MP572OLHMS7MZO4KUPSCIMSZIA5IZZ62/ [No Types Assigned]
  • CVE Modified by [email protected]

    Feb. 20, 2021

    Action Type Old Value New Value
    Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/HCQTCSP6SCVIYNIRUJC5X7YBVUHPLSC4/ [No Types Assigned]
    Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/NODWHDIFBQE5RU5PUWUVE47JOT5VCMJ2/ [No Types Assigned]
  • CVE Modified by [email protected]

    Feb. 19, 2021

    Action Type Old Value New Value
    Added Reference https://news.ycombinator.com/item?id=26185005 [No Types Assigned]
  • CVE Modified by [email protected]

    Feb. 13, 2021

    Action Type Old Value New Value
    Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/FPE7SMXYUIWPOIZV4DQYXODRXMFX3C5E/ [No Types Assigned]
  • Modified Analysis by [email protected]

    Feb. 11, 2021

    Action Type Old Value New Value
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/BRHOCQYX3QLDGDQGTWQAUUT2GGIZCZUO/ Third Party Advisory https://lists.fedoraproject.org/archives/list/[email protected]/message/BRHOCQYX3QLDGDQGTWQAUUT2GGIZCZUO/ Mailing List, Third Party Advisory
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/CCFZMVRQUKCBQIG5F2CBVADK63NFSE4A/ Third Party Advisory https://lists.fedoraproject.org/archives/list/[email protected]/message/CCFZMVRQUKCBQIG5F2CBVADK63NFSE4A/ Mailing List, Third Party Advisory
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/MGSV6BJQLRQ6RKVUXK7JGU7TP4QFGQXC/ Third Party Advisory https://lists.fedoraproject.org/archives/list/[email protected]/message/MGSV6BJQLRQ6RKVUXK7JGU7TP4QFGQXC/ Mailing List, Third Party Advisory
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/NQPARTLNSFQVMMQHPNBFOCOZOO3TMQNA/ Third Party Advisory https://lists.fedoraproject.org/archives/list/[email protected]/message/NQPARTLNSFQVMMQHPNBFOCOZOO3TMQNA/ Mailing List, Third Party Advisory
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/NXSMBHES3ANXXS2RSO5G6Q24BR4B2PWK/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/NXSMBHES3ANXXS2RSO5G6Q24BR4B2PWK/ Mailing List, Third Party Advisory
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/V6XJAULOS5JVB2L67NCKKMJ5NTKZJBSD/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/V6XJAULOS5JVB2L67NCKKMJ5NTKZJBSD/ Mailing List, Third Party Advisory
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/Y4KSYYWMGAKOA2JVCQA422OINT6CKQ7O/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/Y4KSYYWMGAKOA2JVCQA422OINT6CKQ7O/ Third Party Advisory
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/YDTZVGSXQ7HR7OCGSUHTRNTMBG43OMKU/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/YDTZVGSXQ7HR7OCGSUHTRNTMBG43OMKU/ Third Party Advisory
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/Z7GZV74KM72O2PEJN2C4XP3V5Q5MZUOO/ Third Party Advisory https://lists.fedoraproject.org/archives/list/[email protected]/message/Z7GZV74KM72O2PEJN2C4XP3V5Q5MZUOO/ Mailing List, Third Party Advisory
  • CVE Modified by [email protected]

    Feb. 11, 2021

    Action Type Old Value New Value
    Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/YDTZVGSXQ7HR7OCGSUHTRNTMBG43OMKU/ [No Types Assigned]
    Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/Y4KSYYWMGAKOA2JVCQA422OINT6CKQ7O/ [No Types Assigned]
  • CVE Modified by [email protected]

    Feb. 07, 2021

    Action Type Old Value New Value
    Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/NXSMBHES3ANXXS2RSO5G6Q24BR4B2PWK/ [No Types Assigned]
  • CVE Modified by [email protected]

    Feb. 06, 2021

    Action Type Old Value New Value
    Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/V6XJAULOS5JVB2L67NCKKMJ5NTKZJBSD/ [No Types Assigned]
  • Modified Analysis by [email protected]

    Feb. 01, 2021

    Action Type Old Value New Value
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/BRHOCQYX3QLDGDQGTWQAUUT2GGIZCZUO/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/BRHOCQYX3QLDGDQGTWQAUUT2GGIZCZUO/ Third Party Advisory
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/CCFZMVRQUKCBQIG5F2CBVADK63NFSE4A/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/CCFZMVRQUKCBQIG5F2CBVADK63NFSE4A/ Third Party Advisory
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/MGSV6BJQLRQ6RKVUXK7JGU7TP4QFGQXC/ Mailing List, Third Party Advisory https://lists.fedoraproject.org/archives/list/[email protected]/message/MGSV6BJQLRQ6RKVUXK7JGU7TP4QFGQXC/ Third Party Advisory
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/NQPARTLNSFQVMMQHPNBFOCOZOO3TMQNA/ Mailing List, Third Party Advisory https://lists.fedoraproject.org/archives/list/[email protected]/message/NQPARTLNSFQVMMQHPNBFOCOZOO3TMQNA/ Third Party Advisory
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/Z7GZV74KM72O2PEJN2C4XP3V5Q5MZUOO/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/Z7GZV74KM72O2PEJN2C4XP3V5Q5MZUOO/ Third Party Advisory
    Changed CPE Configuration OR *cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* OR *cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Jan. 30, 2021

    Action Type Old Value New Value
    Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/CCFZMVRQUKCBQIG5F2CBVADK63NFSE4A/ [No Types Assigned]
    Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/BRHOCQYX3QLDGDQGTWQAUUT2GGIZCZUO/ [No Types Assigned]
  • CVE Modified by [email protected]

    Jan. 29, 2021

    Action Type Old Value New Value
    Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/Z7GZV74KM72O2PEJN2C4XP3V5Q5MZUOO/ [No Types Assigned]
  • Initial Analysis by [email protected]

    Jan. 28, 2021

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:P/I:P/A:P)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type https://bugs.python.org/issue42938 No Types Assigned https://bugs.python.org/issue42938 Exploit, Patch, Vendor Advisory
    Changed Reference Type https://github.com/python/cpython/pull/24239 No Types Assigned https://github.com/python/cpython/pull/24239 Patch, Third Party Advisory
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/MGSV6BJQLRQ6RKVUXK7JGU7TP4QFGQXC/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/MGSV6BJQLRQ6RKVUXK7JGU7TP4QFGQXC/ Mailing List, Third Party Advisory
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/NQPARTLNSFQVMMQHPNBFOCOZOO3TMQNA/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/NQPARTLNSFQVMMQHPNBFOCOZOO3TMQNA/ Mailing List, Third Party Advisory
    Changed Reference Type https://python-security.readthedocs.io/vuln/ctypes-buffer-overflow-pycarg_repr.html No Types Assigned https://python-security.readthedocs.io/vuln/ctypes-buffer-overflow-pycarg_repr.html Patch, Third Party Advisory
    Changed Reference Type https://security.gentoo.org/glsa/202101-18 No Types Assigned https://security.gentoo.org/glsa/202101-18 Third Party Advisory
    Added CWE NIST CWE-120
    Added CPE Configuration OR *cpe:2.3:a:python:python:*:*:*:*:*:*:*:* versions from (including) 3.6.0 up to (including) 3.6.12 *cpe:2.3:a:python:python:*:*:*:*:*:*:*:* versions from (including) 3.7.0 up to (including) 3.7.9 *cpe:2.3:a:python:python:*:*:*:*:*:*:*:* versions from (including) 3.8.0 up to (including) 3.8.7 *cpe:2.3:a:python:python:*:*:*:*:*:*:*:* versions from (including) 3.9.0 up to (including) 3.9.1
    Added CPE Configuration OR *cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Jan. 26, 2021

    Action Type Old Value New Value
    Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/NQPARTLNSFQVMMQHPNBFOCOZOO3TMQNA/ [No Types Assigned]
    Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/MGSV6BJQLRQ6RKVUXK7JGU7TP4QFGQXC/ [No Types Assigned]
    Added Reference https://security.gentoo.org/glsa/202101-18 [No Types Assigned]
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2021-3177 is associated with the following CWEs:

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

4.04 }} 0.94%

score

0.92392

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability