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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
bionic
Released (8:6.9.7.4+dfsg-16ubuntu6.12)
focal
Released (8:6.9.10.23+dfsg-2.1ubuntu11.4+esm1)
groovy Ignored
(reached end-of-life)
hirsute Ignored
(reached end-of-life)
impish Ignored
(reached end-of-life)
jammy
Released (8:6.9.11.60+dfsg-1.3ubuntu0.22.04.1+esm1)
kinetic
Released (8:6.9.11.60+dfsg-1.3ubuntu0.22.10.1)
precise Does not exist

trusty
Released (8:6.7.7.10-6ubuntu3.13+esm1)
upstream Needs triage

xenial
Released (8:6.8.9.9-7ubuntu5.16+esm1)
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