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CVE-2021-20309

Published: 11 May 2021

A flaw was found in ImageMagick in versions before 7.0.11 and before 6.9.12, where a division by zero in WaveImage() of MagickCore/visual-effects.c may trigger undefined behavior via a crafted image file submitted to 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)
impish Ignored
(end of life)
bionic
Released (8:6.9.7.4+dfsg-16ubuntu6.12)
groovy Ignored
(end of life)
hirsute Ignored
(end of life)
focal
Released (8:6.9.10.23+dfsg-2.1ubuntu11.9)
trusty
Released (8:6.7.7.10-6ubuntu3.13+esm1)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
upstream Needs triage

xenial
Released (8:6.8.9.9-7ubuntu5.16+esm1)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
kinetic
Released (8:6.9.11.60+dfsg-1.3ubuntu0.22.10.1)
jammy
Released (8:6.9.11.60+dfsg-1.3ubuntu0.22.04.3+esm1)
Available with Ubuntu Pro
mantic
Released (8:6.9.11.60+dfsg-1.3ubuntu1)
Patches:
upstream: https://github.com/ImageMagick/ImageMagick6/commit/f1e68d22d1b35459421710587a0dcbab6900b51f

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