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CVE-2016-8729

Published: 24 April 2018

An exploitable memory corruption vulnerability exists in the JBIG2 parser of Artifex MuPDF 1.9. A specially crafted PDF can cause a negative number to be passed to a memset resulting in memory corruption and potential code execution. An attacker can specially craft a PDF and send to the victim to trigger this vulnerability.

Notes

AuthorNote
mdeslaur
same fix as CVE-2016-9601.

Priority

Medium

Cvss 3 Severity Score

7.8

Score breakdown

Status

Package Release Status
jbig2dec
Launchpad, Ubuntu, Debian
artful Not vulnerable
(0.13-4.1)
bionic Not vulnerable
(0.13-4.1)
cosmic Not vulnerable
(0.13-4.1)
disco Not vulnerable
(0.13-4.1)
eoan Not vulnerable
(0.13-4.1)
focal Not vulnerable
(0.13-4.1)
groovy Not vulnerable
(0.13-4.1)
trusty
Released (0.11+20120125-1ubuntu1.1)
upstream Needs triage

xenial
Released (0.12+20150918-1ubuntu0.1)
yakkety Ignored
(end of life)
zesty Not vulnerable
(0.13-4)
hirsute Not vulnerable
(0.13-4.1)
Patches:
upstream: http://git.ghostscript.com/?p=jbig2dec.git;h=e698d5c11d27212aa1098bc5b1673a3378563092
mupdf
Launchpad, Ubuntu, Debian
artful Not vulnerable
(uses system jbig2dec)
bionic Not vulnerable
(uses system jbig2dec)
cosmic Not vulnerable
(uses system jbig2dec)
disco Not vulnerable
(uses system jbig2dec)
eoan Not vulnerable
(uses system jbig2dec)
focal Not vulnerable
(uses system jbig2dec)
groovy Not vulnerable
(uses system jbig2dec)
trusty Does not exist
(trusty was not-affected [uses system jbig2dec])
upstream Needs triage

xenial Not vulnerable
(uses system jbig2dec)
yakkety Ignored
(end of life)
zesty Not vulnerable
(uses system jbig2dec)
hirsute Not vulnerable
(uses system jbig2dec)

Severity score breakdown

Parameter Value
Base score 7.8
Attack vector Local
Attack complexity Low
Privileges required None
User interaction Required
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H