9.1
CRITICAL
CVE-2021-22945
"Curl MQTT Double Free Vulnerability"
Description

When sending data to an MQTT server, libcurl <= 7.73.0 and 7.78.0 could in some circumstances erroneously keep a pointer to an already freed memory area and both use that again in a subsequent call to send data and also free it *again*.

INFO

Published Date :

Sept. 23, 2021, 1:15 p.m.

Last Modified :

March 27, 2024, 3:04 p.m.

Source :

[email protected]

Remotely Exploitable :

Yes !

Impact Score :

5.2

Exploitability Score :

3.9
Public PoC/Exploit Available at Github

CVE-2021-22945 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-2021-22945 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 Netapp solidfire_baseboard_management_controller_firmware
2 Netapp cloud_backup
3 Netapp h300s_firmware
4 Netapp h500s_firmware
5 Netapp h700s_firmware
6 Netapp h410s_firmware
7 Netapp clustered_data_ontap
8 Netapp solidfire_baseboard_management_controller
9 Netapp h300s
10 Netapp h410s
11 Netapp h500s
12 Netapp h700s
13 Netapp h300e_firmware
14 Netapp h500e_firmware
15 Netapp h700e_firmware
16 Netapp h300e
17 Netapp h500e
18 Netapp h700e
1 Haxx curl
2 Haxx libcurl
1 Fedoraproject fedora
1 Debian debian_linux
1 Apple macos
1 Siemens sinec_ins
1 Splunk universal_forwarder
1 Oracle mysql_server
: Total Affected Vendor : 8 | Products : 26
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-2021-22945.

URL Resource
http://seclists.org/fulldisclosure/2022/Mar/29 Mailing List Third Party Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf Patch Third Party Advisory
https://hackerone.com/reports/1269242 Exploit Patch Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/APOAK4X73EJTAPTSVT7IRVDMUWVXNWGD/ Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RWLEC6YVEM2HWUBX67SDGPSY4CQB72OE/ Mailing List Third Party Advisory
https://security.gentoo.org/glsa/202212-01 Third Party Advisory
https://security.netapp.com/advisory/ntap-20211029-0003/ Third Party Advisory
https://support.apple.com/kb/HT213183 Third Party Advisory
https://www.debian.org/security/2022/dsa-5197 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).

Profile Photo
emilkje/trivy-operator-lab

Demonstrating the Trivy Operator and its capabilities

Updated: 1 year, 8 months ago
0 stars 0 fork 0 watcher
Born at : Jan. 10, 2023, 3:24 p.m. This repo has been linked 1 different CVEs too.
Profile Photo
blairdrummond/terragrunt-experiment-demo-app

Hello world api

argocd-demo

Dockerfile Makefile Python

Updated: 2 years, 3 months ago
0 stars 0 fork 0 watcher
Born at : March 25, 2022, 1:43 p.m. This repo has been linked 1 different CVEs too.
Profile Photo
kenlavbah/log4jnotes

None

Updated: 2 years, 9 months ago
0 stars 0 fork 0 watcher
Born at : Dec. 16, 2021, 8:16 p.m. This repo has been linked 24 different CVEs too.
Profile Photo
devopstales/trivy-operator

Kubernetes Operator based on the open-source container vulnerability scanner Trivy.

kopf python python3 kubernetes trivy operator kubernetes-operator kubernetes-operators admission-control admission-controller admission-controlers python-kubernetes

Shell Dockerfile Python Makefile Smarty

Updated: 3 weeks, 6 days ago
46 stars 10 fork 10 watcher
Born at : Oct. 2, 2021, 2:12 p.m. This repo has been linked 7 different CVEs too.
Profile Photo
GitHubForSnap/podcast-dl-gael

None

Shell Python

Updated: 1 month, 1 week ago
0 stars 1 fork 1 watcher
Born at : March 19, 2021, 11:41 a.m. This repo has been linked 81 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-2021-22945 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-22945 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
  • Modified Analysis by [email protected]

    Mar. 27, 2024

    Action Type Old Value New Value
    Changed Reference Type https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/APOAK4X73EJTAPTSVT7IRVDMUWVXNWGD/ No Types Assigned https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/APOAK4X73EJTAPTSVT7IRVDMUWVXNWGD/ Mailing List, Third Party Advisory
    Changed Reference Type https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RWLEC6YVEM2HWUBX67SDGPSY4CQB72OE/ No Types Assigned https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RWLEC6YVEM2HWUBX67SDGPSY4CQB72OE/ Mailing List, Third Party Advisory
    Added CPE Configuration OR *cpe:2.3:a:splunk:universal_forwarder:*:*:*:*:*:*:*:* versions from (including) 8.2.0 up to (excluding) 8.2.12 *cpe:2.3:a:splunk:universal_forwarder:*:*:*:*:*:*:*:* versions from (including) 9.0.0 up to (excluding) 9.0.6 *cpe:2.3:a:splunk:universal_forwarder:9.1.0:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Nov. 07, 2023

    Action Type Old Value New Value
    Added Reference HackerOne https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RWLEC6YVEM2HWUBX67SDGPSY4CQB72OE/ [No types assigned]
    Added Reference HackerOne https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/APOAK4X73EJTAPTSVT7IRVDMUWVXNWGD/ [No types assigned]
    Removed Reference HackerOne https://lists.fedoraproject.org/archives/list/[email protected]/message/RWLEC6YVEM2HWUBX67SDGPSY4CQB72OE/
    Removed Reference HackerOne https://lists.fedoraproject.org/archives/list/[email protected]/message/APOAK4X73EJTAPTSVT7IRVDMUWVXNWGD/
  • Modified Analysis by [email protected]

    Dec. 22, 2022

    Action Type Old Value New Value
    Changed Reference Type https://security.gentoo.org/glsa/202212-01 No Types Assigned https://security.gentoo.org/glsa/202212-01 Third Party Advisory
    Changed Reference Type https://www.debian.org/security/2022/dsa-5197 No Types Assigned https://www.debian.org/security/2022/dsa-5197 Third Party Advisory
    Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Dec. 19, 2022

    Action Type Old Value New Value
    Added Reference https://security.gentoo.org/glsa/202212-01 [No Types Assigned]
  • CVE Modified by [email protected]

    Aug. 02, 2022

    Action Type Old Value New Value
    Added Reference https://www.debian.org/security/2022/dsa-5197 [No Types Assigned]
  • Modified Analysis by [email protected]

    Apr. 15, 2022

    Action Type Old Value New Value
    Changed Reference Type http://seclists.org/fulldisclosure/2022/Mar/29 No Types Assigned http://seclists.org/fulldisclosure/2022/Mar/29 Mailing List, Third Party Advisory
    Changed Reference Type https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf No Types Assigned https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf Patch, Third Party Advisory
    Changed Reference Type https://support.apple.com/kb/HT213183 No Types Assigned https://support.apple.com/kb/HT213183 Third Party Advisory
    Changed CPE Configuration OR *cpe:2.3:a:netapp:clustered_data_ontap:-:*:*:*:*:*:*:* OR *cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:* *cpe:2.3:a:netapp:clustered_data_ontap:-:*:*:*:*:*:*:*
    Added CPE Configuration OR *cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* versions from (including) 12.0.0 up to (excluding) 12.3
    Added CPE Configuration OR *cpe:2.3:a:siemens:sinec_ins:*:*:*:*:*:*:*:* versions up to (excluding) 1.0.1.1
  • CVE Modified by [email protected]

    Mar. 15, 2022

    Action Type Old Value New Value
    Added Reference http://seclists.org/fulldisclosure/2022/Mar/29 [No Types Assigned]
  • CVE Modified by [email protected]

    Mar. 14, 2022

    Action Type Old Value New Value
    Added Reference https://support.apple.com/kb/HT213183 [No Types Assigned]
  • CVE Modified by [email protected]

    Mar. 10, 2022

    Action Type Old Value New Value
    Added Reference https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf [No Types Assigned]
  • Modified Analysis by [email protected]

    Nov. 28, 2021

    Action Type Old Value New Value
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/APOAK4X73EJTAPTSVT7IRVDMUWVXNWGD/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/APOAK4X73EJTAPTSVT7IRVDMUWVXNWGD/ Mailing List, Third Party Advisory
    Changed Reference Type https://security.netapp.com/advisory/ntap-20211029-0003/ No Types Assigned https://security.netapp.com/advisory/ntap-20211029-0003/ 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:o:fedoraproject:fedora:33:*:*:*:*:*:*:* OR *cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
    Added CPE Configuration OR *cpe:2.3:a:netapp:clustered_data_ontap:-:*:*:*:*:*:*:*
    Added CPE Configuration OR *cpe:2.3:a:oracle:mysql_server:*:*:*:*:*:*:*:* versions from (including) 5.7.0 up to (including) 5.7.35 *cpe:2.3:a:oracle:mysql_server:*:*:*:*:*:*:*:* versions from (including) 8.0.0 up to (including) 8.0.26
    Added CPE Configuration AND OR *cpe:2.3:o:netapp:h300s_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:h300s:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:netapp:h500s_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:h500s:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:netapp:h700s_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:h700s:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:netapp:h300e_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:h300e:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:netapp:h500e_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:h500e:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:netapp:h700e_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:h700e:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:netapp:h410s_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:h410s:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:netapp:solidfire_baseboard_management_controller_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:solidfire_baseboard_management_controller:-:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Nov. 17, 2021

    Action Type Old Value New Value
    Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/APOAK4X73EJTAPTSVT7IRVDMUWVXNWGD/ [No Types Assigned]
  • CVE Modified by [email protected]

    Nov. 10, 2021

    Action Type Old Value New Value
    Removed Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/APOAK4X73EJTAPTSVT7IRVDMUWVXNWGD/ [No Types Assigned]
  • CVE Modified by [email protected]

    Nov. 03, 2021

    Action Type Old Value New Value
    Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/APOAK4X73EJTAPTSVT7IRVDMUWVXNWGD/ [No Types Assigned]
  • CVE Modified by [email protected]

    Oct. 29, 2021

    Action Type Old Value New Value
    Added Reference https://security.netapp.com/advisory/ntap-20211029-0003/ [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]
  • Reanalysis by [email protected]

    Oct. 08, 2021

    Action Type Old Value New Value
    Removed CVSS V2 NIST (AV:N/AC:L/Au:N/C:P/I:P/A:P)
    Added CVSS V2 NIST (AV:N/AC:M/Au:N/C:P/I:N/A:P)
    Removed CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
  • Initial Analysis by [email protected]

    Oct. 06, 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://hackerone.com/reports/1269242 No Types Assigned https://hackerone.com/reports/1269242 Exploit, Patch, Third Party Advisory
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/RWLEC6YVEM2HWUBX67SDGPSY4CQB72OE/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/RWLEC6YVEM2HWUBX67SDGPSY4CQB72OE/ Third Party Advisory
    Added CWE NIST CWE-415
    Added CPE Configuration OR *cpe:2.3:a:haxx:libcurl:*:*:*:*:*:*:*:* versions from (including) 7.73.0 up to (including) 7.78.0
    Added CPE Configuration OR *cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Oct. 02, 2021

    Action Type Old Value New Value
    Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/RWLEC6YVEM2HWUBX67SDGPSY4CQB72OE/ [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-2021-22945 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2021-22945 weaknesses.

Exploit Prediction

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

0.69 }} 0.20%

score

0.80139

percentile

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