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CVE-2016-5688

Published: 24 June 2016

The WPG parser in ImageMagick before 6.9.4-4 and 7.x before 7.0.1-5, when a memory limit is set, allows remote attackers to have unspecified impact via vectors related to the SetImageExtent return-value check, which trigger (1) a heap-based buffer overflow in the SetPixelIndex function or an invalid write operation in the (2) ScaleCharToQuantum or (3) SetPixelIndex functions.

Notes

AuthorNote
mdeslaur
This is 0131-Ensure-image-extent-does-not-exceed-maximum-for-wpg-.patch,
0132-Set-pixel-cache-to-undefined-if-any-resource-limit-i.patch,
0133-Fix-allocation-of-memory-for-CVE-2016-5688.patch

Priority

Medium

Cvss 3 Severity Score

8.1

Score breakdown

Status

Package Release Status
imagemagick
Launchpad, Ubuntu, Debian
precise
Released (8:6.6.9.7-5ubuntu3.5)
upstream
Released (8:6.8.9.9-5+deb8u4)
wily Ignored
(end of life)
xenial
Released (8:6.8.9.9-7ubuntu5.2)
yakkety
Released (8:6.8.9.9-7ubuntu8.1)
trusty
Released (8:6.7.7.10-6ubuntu3.2)
Patches:
upstream: https://github.com/ImageMagick/ImageMagick/commit/f7c2e897c0f990d663026055a2b40e1be7e16ede
upstream: https://github.com/ImageMagick/ImageMagick/commit/fc43974d34318c834fbf78570ca1a3764ed8c7d7
upstream: https://github.com/ImageMagick/ImageMagick/commit/aecd0ada163a4d6c769cec178955d5f3e9316f2f

Severity score breakdown

Parameter Value
Base score 8.1
Attack vector Network
Attack complexity High
Privileges required None
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H