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CVE-2020-14331

UNKNOWN
Published 2020-09-15T18:51:10
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No CVSS data available

Description

A flaw was found in the Linux kernel’s implementation of the invert video code on VGA consoles when a local attacker attempts to resize the console, calling an ioctl VT_RESIZE, which causes an out-of-bounds write to occur. This flaw allows a local user with access to the VGA console to crash the system, potentially escalating their privileges on the system. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

Available Exploits

No exploits available for this CVE.

Related News

No news articles found for this CVE.

GitHub Security Advisories

Community-driven vulnerability intelligence from GitHub

⚠ Unreviewed HIGH

GHSA-x3f8-pg55-6qfg

Advisory Details

A flaw was found in the Linux kernel’s implementation of the invert video code on VGA consoles when a local attacker attempts to resize the console, calling an ioctl VT_RESIZE, which causes an out-of-bounds write to occur. This flaw allows a local user with access to the VGA console to crash the system, potentially escalating their privileges on the system. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

CVSS Scoring

CVSS Score

7.5

CVSS Vector

CVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References

ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2020-14331
WEB https://access.redhat.com/errata/RHSA-2020:4286
WEB https://access.redhat.com/errata/RHSA-2020:4289
WEB https://access.redhat.com/errata/RHSA-2020:5023
WEB https://access.redhat.com/errata/RHSA-2020:5026
WEB https://access.redhat.com/security/cve/CVE-2020-14331
WEB https://bugzilla.redhat.com/show_bug.cgi?id=1858679
WEB https://lists.debian.org/debian-lts-announce/2020/09/msg00025.html
WEB https://lists.debian.org/debian-lts-announce/2020/10/msg00032.html
WEB https://lists.debian.org/debian-lts-announce/2020/10/msg00034.html
WEB https://lists.openwall.net/linux-kernel/2020/07/29/234
WEB https://www.openwall.com/lists/oss-security/2020/07/28/2

Advisory provided by GitHub Security Advisory Database. Published: May 24, 2022, Modified: February 13, 2023

References

https://www.openwall.com/lists/oss-security/2020/07/28/2
https://lists.openwall.net/linux-kernel/2020/07/29/234
https://bugzilla.redhat.com/show_bug.cgi?id=1858679
https://lists.debian.org/debian-lts-announce/2020/09/msg00025.html
https://lists.debian.org/debian-lts-announce/2020/10/msg00032.html
https://lists.debian.org/debian-lts-announce/2020/10/msg00034.html
Published: 2020-09-15T18:51:10
Last Modified: 2024-08-04T12:39:36.257Z
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