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CVE-2021-20224

Published: 25 August 2022

An integer overflow issue was discovered in ImageMagick's ExportIndexQuantum() function in MagickCore/quantum-export.c. Function calls to GetPixelIndex() could result in values outside the range of representable for the 'unsigned char'. When ImageMagick processes a crafted pdf file, this could lead to an undefined behaviour or a crash.

Priority

Medium

Cvss 3 Severity Score

5.5

Score breakdown

Status

Package Release Status
imagemagick
Launchpad, Ubuntu, Debian
focal
Released (8:6.9.10.23+dfsg-2.1ubuntu11.9)
bionic
Released (8:6.9.7.4+dfsg-16ubuntu6.14)
kinetic Not vulnerable
(8:6.9.11.60+dfsg-1.3build3)
lunar Not vulnerable
(8:6.9.11.60+dfsg-1.3build3)
jammy Not vulnerable
(8:6.9.11.60+dfsg-1.3build2)
trusty
Released (8:6.7.7.10-6ubuntu3.13+esm3)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
upstream
Released (8:6.9.11.57+dfsg-1)
xenial
Released (8:6.8.9.9-7ubuntu5.16+esm5)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only)

Severity score breakdown

Parameter Value
Base score 5.5
Attack vector Local
Attack complexity Low
Privileges required None
User interaction Required
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H