Home / mailings [gentoo-announce] [ GLSA 201708-10 ] jbig2dec: User-assisted execution of arbitrary code
Posted on 26 August 2017
Gentoo-announce--nextPart15354199.rxWPKfueNi
Content-Transfer-Encoding: 7Bit
Content-Type: text/plain; charset="us-ascii"
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Gentoo Linux Security Advisory GLSA 201708-10
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
https://security.gentoo.org/
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Severity: Normal
Title: jbig2dec: User-assisted execution of arbitrary code
Date: August 26, 2017
Bugs: #616464
ID: 201708-10
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Synopsis
========
Multiple integer overflow flaws have been discovered in jbig2dec,
possibly resulting in execution of arbitrary code or Denial of Service.
Background
==========
jbig2dec is a decoder implementation of the JBIG2 image compression
format.
Affected packages
=================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 media-libs/jbig2dec < 0.13-r4 >= 0.13-r4
Description
===========
Integer overflow errors have been discovered in the
jbig2_decode_symbol_dict, jbig2_build_huffman_table, and
jbig2_image_compose functions of jbig2dec.
Impact
======
A remote attacker, by enticing a user to open a specially crafted JBIG2
file using an application linked against jbig2dec, could possibly
execute arbitrary code with the privileges of the process or cause a
Denial of Service condition.
Workaround
==========
There is no known workaround at this time.
Resolution
==========
All jbig2dec users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=media-libs/jbig2dec-0.13-r4"
References
==========
[ 1 ] CVE-2017-7885
http://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-7885
[ 2 ] CVE-2017-7975
http://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-7975
[ 3 ] CVE-2017-7976
http://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-7976
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
https://security.gentoo.org/glsa/201708-10
Concerns?
=========
Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users' machines is of utmost
importance to us. Any security concerns should be addressed to
security@gentoo.org or alternatively, you may file a bug at
https://bugs.gentoo.org.
License
=======
Copyright 2017 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).
The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.
http://creativecommons.org/licenses/by-sa/2.5
--nextPart15354199.rxWPKfueNi
Content-Type: application/pgp-signature; name="signature.asc"
Content-Description: This is a digitally signed message part.
Content-Transfer-Encoding: 7Bit
