Out-of-bounds Write Affecting torvalds/linux package, versions [,5.8)


Severity

Recommended
0.0
medium
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.02% (3rd percentile)

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  • Snyk IDSNYK-UNMANAGED-TORVALDSLINUX-3006283
  • published26 Jan 2022
  • disclosed15 Sept 2020
  • creditUnknown

Introduced: 15 Sep 2020

CVE-2020-14331  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

Upgrade torvalds/linux to version 5.8 or higher.

Overview

Affected versions of this package are vulnerable to Out-of-bounds Write. 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 Base Scores

version 3.1