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CVE-2021-20312

Published: 11 May 2021

A flaw was found in ImageMagick in versions 7.0.11, where an integer overflow in WriteTHUMBNAILImage of coders/thumbnail.c may trigger undefined behavior via a crafted image file that is submitted by an attacker and processed by an application using ImageMagick. The highest threat from this vulnerability is to system availability.

Notes

AuthorNote
rayveldkamp
imagemagick is in universe from focal onwards

Priority

Low

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package Release Status
imagemagick
Launchpad, Ubuntu, Debian
lunar
Released (8:6.9.11.60+dfsg-1.3ubuntu1)
xenial
Released (8:6.8.9.9-7ubuntu5.16+esm1)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
impish Ignored
(end of life)
upstream Needs triage

groovy Ignored
(end of life)
bionic
Released (8:6.9.7.4+dfsg-16ubuntu6.12)
trusty
Released (8:6.7.7.10-6ubuntu3.13+esm1)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
hirsute Ignored
(end of life)
kinetic
Released (8:6.9.11.60+dfsg-1.3ubuntu0.22.10.1)
focal
Released (8:6.9.10.23+dfsg-2.1ubuntu11.9)
jammy
Released (8:6.9.11.60+dfsg-1.3ubuntu0.22.04.3+esm1)
Available with Ubuntu Pro
Patches:
upstream: https://github.com/ImageMagick/ImageMagick6/commit/e53e24b078f7fa586f9cc910491b8910f5bdad2e

Severity score breakdown

Parameter Value
Base score 7.5
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H