4.4
MEDIUM
CVE-2020-29660
Linux TTY Locking Inconsistency Read-After-Free Vulnerability
Description

A locking inconsistency issue was discovered in the tty subsystem of the Linux kernel through 5.9.13. drivers/tty/tty_io.c and drivers/tty/tty_jobctrl.c may allow a read-after-free attack against TIOCGSID, aka CID-c8bcd9c5be24.

INFO

Published Date :

Dec. 9, 2020, 5:15 p.m.

Last Modified :

Nov. 21, 2024, 5:24 a.m.

Source :

[email protected]

Remotely Exploitable :

No

Impact Score :

3.6

Exploitability Score :

0.8
Public PoC/Exploit Available at Github

CVE-2020-29660 has a 1 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-2020-29660 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 active_iq_unified_manager
2 Netapp solidfire_baseboard_management_controller_firmware
3 Netapp h410c_firmware
4 Netapp a700s_firmware
5 Netapp 8300_firmware
6 Netapp 8700_firmware
7 Netapp a400_firmware
8 Netapp solidfire_baseboard_management_controller
9 Netapp h410c
10 Netapp a700s
11 Netapp 8300
12 Netapp 8700
13 Netapp a400
1 Linux linux_kernel
1 Fedoraproject fedora
1 Debian debian_linux
1 Broadcom fabric_operating_system
: Total Affected Vendor : 5 | Products : 17
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-2020-29660.

URL Resource
http://packetstormsecurity.com/files/164950/Kernel-Live-Patch-Security-Notice-LSN-0082-1.html Exploit Third Party Advisory VDB Entry
http://www.openwall.com/lists/oss-security/2020/12/10/1 Mailing List Patch Third Party Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c8bcd9c5be24fb9e6132e97da5a35e55a83e36b9 Exploit Patch Vendor Advisory
https://lists.debian.org/debian-lts-announce/2021/02/msg00018.html Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/03/msg00010.html Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BOB25SU6XUL4TNP7KB63WNZSYTIYFDPP/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MZ7OAKAEFAXQRGBZK4LYUWINCD3D2XCL/
https://security.netapp.com/advisory/ntap-20210122-0001/ Third Party Advisory
https://www.debian.org/security/2021/dsa-4843 Third Party Advisory
http://packetstormsecurity.com/files/164950/Kernel-Live-Patch-Security-Notice-LSN-0082-1.html Exploit Third Party Advisory VDB Entry
http://www.openwall.com/lists/oss-security/2020/12/10/1 Mailing List Patch Third Party Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c8bcd9c5be24fb9e6132e97da5a35e55a83e36b9 Exploit Patch Vendor Advisory
https://lists.debian.org/debian-lts-announce/2021/02/msg00018.html Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/03/msg00010.html Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BOB25SU6XUL4TNP7KB63WNZSYTIYFDPP/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MZ7OAKAEFAXQRGBZK4LYUWINCD3D2XCL/
https://security.netapp.com/advisory/ntap-20210122-0001/ Third Party Advisory
https://www.debian.org/security/2021/dsa-4843 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
vincent-deng/veracode-container-security-finding-parser

Map Vulnerabilities into Different Layers of the Container Image

Python

Updated: 1 year, 11 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.

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

The following list is the news that have been mention CVE-2020-29660 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2020-29660 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 af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference http://packetstormsecurity.com/files/164950/Kernel-Live-Patch-Security-Notice-LSN-0082-1.html
    Added Reference http://www.openwall.com/lists/oss-security/2020/12/10/1
    Added Reference https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c8bcd9c5be24fb9e6132e97da5a35e55a83e36b9
    Added Reference https://lists.debian.org/debian-lts-announce/2021/02/msg00018.html
    Added Reference https://lists.debian.org/debian-lts-announce/2021/03/msg00010.html
    Added Reference https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BOB25SU6XUL4TNP7KB63WNZSYTIYFDPP/
    Added Reference https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MZ7OAKAEFAXQRGBZK4LYUWINCD3D2XCL/
    Added Reference https://security.netapp.com/advisory/ntap-20210122-0001/
    Added Reference https://www.debian.org/security/2021/dsa-4843
  • 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/MZ7OAKAEFAXQRGBZK4LYUWINCD3D2XCL/ [No types assigned]
    Added Reference MITRE https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BOB25SU6XUL4TNP7KB63WNZSYTIYFDPP/ [No types assigned]
    Removed Reference MITRE https://lists.fedoraproject.org/archives/list/[email protected]/message/BOB25SU6XUL4TNP7KB63WNZSYTIYFDPP/
    Removed Reference MITRE https://lists.fedoraproject.org/archives/list/[email protected]/message/MZ7OAKAEFAXQRGBZK4LYUWINCD3D2XCL/
  • Modified Analysis by [email protected]

    Nov. 30, 2021

    Action Type Old Value New Value
    Changed Reference Type http://packetstormsecurity.com/files/164950/Kernel-Live-Patch-Security-Notice-LSN-0082-1.html No Types Assigned http://packetstormsecurity.com/files/164950/Kernel-Live-Patch-Security-Notice-LSN-0082-1.html Exploit, Third Party Advisory, VDB Entry
    Changed Reference Type https://lists.debian.org/debian-lts-announce/2021/02/msg00018.html No Types Assigned https://lists.debian.org/debian-lts-announce/2021/02/msg00018.html Mailing List, Third Party Advisory
    Changed Reference Type https://lists.debian.org/debian-lts-announce/2021/03/msg00010.html No Types Assigned https://lists.debian.org/debian-lts-announce/2021/03/msg00010.html Mailing List, Third Party Advisory
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/BOB25SU6XUL4TNP7KB63WNZSYTIYFDPP/ Third Party Advisory https://lists.fedoraproject.org/archives/list/[email protected]/message/BOB25SU6XUL4TNP7KB63WNZSYTIYFDPP/ Mailing List, Third Party Advisory
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/MZ7OAKAEFAXQRGBZK4LYUWINCD3D2XCL/ Third Party Advisory https://lists.fedoraproject.org/archives/list/[email protected]/message/MZ7OAKAEFAXQRGBZK4LYUWINCD3D2XCL/ Mailing List, Third Party Advisory
    Changed Reference Type https://security.netapp.com/advisory/ntap-20210122-0001/ No Types Assigned https://security.netapp.com/advisory/ntap-20210122-0001/ Third Party Advisory
    Changed Reference Type https://www.debian.org/security/2021/dsa-4843 No Types Assigned https://www.debian.org/security/2021/dsa-4843 Third Party Advisory
    Changed CPE Configuration OR *cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (including) 5.9.13 OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (including) 5.9.13
    Added CPE Configuration OR *cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
    Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* *cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
    Added CPE Configuration OR *cpe:2.3:a:netapp:active_iq_unified_manager:-:*:*:*:*:vmware_vsphere:*:*
    Added CPE Configuration OR *cpe:2.3:o:broadcom:fabric_operating_system:-:*:*:*:*:*:*:*
    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:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:netapp:h410c_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:h410c:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:netapp:a700s_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:a700s:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:netapp:8300_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:8300:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:netapp:8700_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:8700:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:netapp:a400_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:a400:-:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Nov. 12, 2021

    Action Type Old Value New Value
    Added Reference http://packetstormsecurity.com/files/164950/Kernel-Live-Patch-Security-Notice-LSN-0082-1.html [No Types Assigned]
  • CVE Modified by [email protected]

    Mar. 09, 2021

    Action Type Old Value New Value
    Added Reference https://lists.debian.org/debian-lts-announce/2021/03/msg00010.html [No Types Assigned]
  • CVE Modified by [email protected]

    Feb. 12, 2021

    Action Type Old Value New Value
    Added Reference https://lists.debian.org/debian-lts-announce/2021/02/msg00018.html [No Types Assigned]
  • CVE Modified by [email protected]

    Feb. 02, 2021

    Action Type Old Value New Value
    Added Reference https://www.debian.org/security/2021/dsa-4843 [No Types Assigned]
  • CVE Modified by [email protected]

    Jan. 26, 2021

    Action Type Old Value New Value
    Added Reference https://security.netapp.com/advisory/ntap-20210122-0001/ [No Types Assigned]
  • Modified Analysis by [email protected]

    Dec. 18, 2020

    Action Type Old Value New Value
    Removed CVSS V2 NIST (AV:L/AC:L/Au:N/C:C/I:C/A:C)
    Added CVSS V2 NIST (AV:L/AC:L/Au:N/C:P/I:N/A:N)
    Removed CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
    Added CVSS V3.1 NIST AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
    Changed Reference Type http://www.openwall.com/lists/oss-security/2020/12/10/1 Patch, Third Party Advisory http://www.openwall.com/lists/oss-security/2020/12/10/1 Mailing List, Patch, Third Party Advisory
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/BOB25SU6XUL4TNP7KB63WNZSYTIYFDPP/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/BOB25SU6XUL4TNP7KB63WNZSYTIYFDPP/ Third Party Advisory
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/MZ7OAKAEFAXQRGBZK4LYUWINCD3D2XCL/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/MZ7OAKAEFAXQRGBZK4LYUWINCD3D2XCL/ Third Party Advisory
    Changed CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (including) 5.9.13 OR *cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (including) 5.9.13
  • CVE Modified by [email protected]

    Dec. 17, 2020

    Action Type Old Value New Value
    Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/BOB25SU6XUL4TNP7KB63WNZSYTIYFDPP/ [No Types Assigned]
    Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/MZ7OAKAEFAXQRGBZK4LYUWINCD3D2XCL/ [No Types Assigned]
  • Initial Analysis by [email protected]

    Dec. 11, 2020

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:L/AC:L/Au:N/C:C/I:C/A:C)
    Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type http://www.openwall.com/lists/oss-security/2020/12/10/1 No Types Assigned http://www.openwall.com/lists/oss-security/2020/12/10/1 Patch, Third Party Advisory
    Changed Reference Type https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c8bcd9c5be24fb9e6132e97da5a35e55a83e36b9 No Types Assigned https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c8bcd9c5be24fb9e6132e97da5a35e55a83e36b9 Exploit, Patch, Vendor Advisory
    Added CWE NIST CWE-667
    Added CWE NIST CWE-416
    Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (including) 5.9.13
  • CVE Modified by [email protected]

    Dec. 11, 2020

    Action Type Old Value New Value
    Added Reference http://www.openwall.com/lists/oss-security/2020/12/10/1 [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-2020-29660 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-2020-29660 weaknesses.

Exploit Prediction

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

0.07 }} 0.01%

score

0.33986

percentile

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