CVE-2020-13974
Linux Kernel vt/keyboard Integer Overflow Weakness
Description
An issue was discovered in the Linux kernel 4.4 through 5.7.1. drivers/tty/vt/keyboard.c has an integer overflow if k_ascii is called several times in a row, aka CID-b86dab054059. NOTE: Members in the community argue that the integer overflow does not lead to a security issue in this case.
INFO
Published Date :
June 9, 2020, 5:15 a.m.
Last Modified :
Feb. 24, 2023, 6:42 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
5.9
Exploitability Score :
1.8
Affected Products
The following products are affected by CVE-2020-13974
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.
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-2020-13974.
| URL | Resource |
|---|---|
| http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00008.html | Mailing List Third Party Advisory |
| http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00009.html | Mailing List Third Party Advisory |
| https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?id=dad0bf9ce93fa40b667eccd3306783f4db4b932b | Vendor Advisory |
| https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b86dab054059b970111b5516ae548efaae5b3aae | Patch Vendor Advisory |
| https://lists.debian.org/debian-lts-announce/2020/08/msg00019.html | Mailing List Third Party Advisory |
| https://lkml.org/lkml/2020/3/22/482 | Exploit Vendor Advisory |
| https://usn.ubuntu.com/4427-1/ | Third Party Advisory |
| https://usn.ubuntu.com/4439-1/ | Third Party Advisory |
| https://usn.ubuntu.com/4440-1/ | Third Party Advisory |
| https://usn.ubuntu.com/4483-1/ | Third Party Advisory |
| https://usn.ubuntu.com/4485-1/ | Third Party Advisory |
| https://www.oracle.com/security-alerts/cpujul2022.html | 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).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2020-13974 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2020-13974 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]
Feb. 24, 2023
Action Type Old Value New Value Changed Reference Type http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00008.html No Types Assigned http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00008.html Mailing List, Third Party Advisory Changed Reference Type http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00009.html No Types Assigned http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00009.html Mailing List, Third Party Advisory Changed Reference Type https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?id=dad0bf9ce93fa40b667eccd3306783f4db4b932b No Types Assigned https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?id=dad0bf9ce93fa40b667eccd3306783f4db4b932b Vendor Advisory Changed Reference Type https://lists.debian.org/debian-lts-announce/2020/08/msg00019.html No Types Assigned https://lists.debian.org/debian-lts-announce/2020/08/msg00019.html Mailing List, Third Party Advisory Changed Reference Type https://usn.ubuntu.com/4427-1/ No Types Assigned https://usn.ubuntu.com/4427-1/ Third Party Advisory Changed Reference Type https://usn.ubuntu.com/4439-1/ No Types Assigned https://usn.ubuntu.com/4439-1/ Third Party Advisory Changed Reference Type https://usn.ubuntu.com/4440-1/ No Types Assigned https://usn.ubuntu.com/4440-1/ Third Party Advisory Changed Reference Type https://usn.ubuntu.com/4483-1/ No Types Assigned https://usn.ubuntu.com/4483-1/ Third Party Advisory Changed Reference Type https://usn.ubuntu.com/4485-1/ No Types Assigned https://usn.ubuntu.com/4485-1/ Third Party Advisory Changed Reference Type https://www.oracle.com/security-alerts/cpujul2022.html No Types Assigned https://www.oracle.com/security-alerts/cpujul2022.html Third Party Advisory Changed CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (including) 5.7.1 OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (excluding) 4.4.227 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.5 up to (excluding) 4.9.227 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.10 up to (excluding) 4.14.184 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.15 up to (excluding) 4.19.128 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.20 up to (excluding) 5.4.46 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5 up to (excluding) 5.6.18 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.7 up to (excluding) 5.7.2 Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* Added CPE Configuration OR *cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:* -
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] -
CVE Modified by [email protected]
Jan. 04, 2021
Action Type Old Value New Value Changed Description ** DISPUTED ** An issue was discovered in the Linux kernel through 5.7.1. drivers/tty/vt/keyboard.c has an integer overflow if k_ascii is called several times in a row, aka CID-b86dab054059. NOTE: Members in the community argue that the integer overflow does not lead to a security issue in this case. An issue was discovered in the Linux kernel 4.4 through 5.7.1. drivers/tty/vt/keyboard.c has an integer overflow if k_ascii is called several times in a row, aka CID-b86dab054059. NOTE: Members in the community argue that the integer overflow does not lead to a security issue in this case. Added Reference https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?id=dad0bf9ce93fa40b667eccd3306783f4db4b932b [No Types Assigned] -
CVE Modified by [email protected]
Sep. 15, 2020
Action Type Old Value New Value Added Reference https://usn.ubuntu.com/4485-1/ [No Types Assigned] -
CVE Modified by [email protected]
Sep. 15, 2020
Action Type Old Value New Value Added Reference https://usn.ubuntu.com/4483-1/ [No Types Assigned] -
CVE Modified by [email protected]
Aug. 12, 2020
Action Type Old Value New Value Added Reference https://lists.debian.org/debian-lts-announce/2020/08/msg00019.html [No Types Assigned] -
CVE Modified by [email protected]
Aug. 06, 2020
Action Type Old Value New Value Added Reference http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00009.html [No Types Assigned] -
CVE Modified by [email protected]
Aug. 04, 2020
Action Type Old Value New Value Added Reference https://usn.ubuntu.com/4440-1/ [No Types Assigned] -
CVE Modified by [email protected]
Aug. 03, 2020
Action Type Old Value New Value Added Reference https://usn.ubuntu.com/4439-1/ [No Types Assigned] -
CVE Modified by [email protected]
Jul. 27, 2020
Action Type Old Value New Value Added Reference https://usn.ubuntu.com/4427-1/ [No Types Assigned] -
CVE Modified by [email protected]
Jul. 07, 2020
Action Type Old Value New Value Added Reference http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00008.html [No Types Assigned] -
CVE Modified by [email protected]
Jun. 16, 2020
Action Type Old Value New Value Changed Description An issue was discovered in the Linux kernel through 5.7.1. drivers/tty/vt/keyboard.c has an integer overflow if k_ascii is called several times in a row, aka CID-b86dab054059. ** DISPUTED ** An issue was discovered in the Linux kernel through 5.7.1. drivers/tty/vt/keyboard.c has an integer overflow if k_ascii is called several times in a row, aka CID-b86dab054059. NOTE: Members in the community argue that the integer overflow does not lead to a security issue in this case. -
Initial Analysis by [email protected]
Jun. 15, 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 https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b86dab054059b970111b5516ae548efaae5b3aae No Types Assigned https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b86dab054059b970111b5516ae548efaae5b3aae Patch, Vendor Advisory Changed Reference Type https://lkml.org/lkml/2020/3/22/482 No Types Assigned https://lkml.org/lkml/2020/3/22/482 Exploit, Vendor Advisory Added CWE NIST CWE-190 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (including) 5.7.1
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2020-13974 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-2020-13974
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.08 }} 0.00%
score
0.31322
percentile