CVE-2020-14331 — Out-of-bounds Write in Linux
Severity
6.6MEDIUMNVD
EPSS
0.0%
top 93.09%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedSep 15
Latest updateMay 24
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.
CVSS vector
CVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitability: 0.7 | Impact: 5.9
Affected Packages5 packages
Also affects: Enterprise Linux 7.0, 8.0
Patches
🔴Vulnerability Details
3GHSA▶
GHSA-x3f8-pg55-6qfg: 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, c↗2022-05-24
OSV▶
CVE-2020-14331: 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, c↗2020-09-15
📋Vendor Advisories
3Microsoft▶
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-bo↗2020-09-08
Debian▶
CVE-2020-14331: linux - A flaw was found in the Linux kernel’s implementation of the invert video code o...↗2020