You are here
Home > Preporuke > Sigurnosni nedostaci programskog paketa libjpeg-turbo

Sigurnosni nedostaci programskog paketa libjpeg-turbo

  • Detalji os-a: WN7
  • Važnost: IMP
  • Operativni sustavi: L
  • Kategorije: LGE

– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –
Gentoo Linux Security Advisory GLSA 201612-55
– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –
https://security.gentoo.org/
– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –

Severity: Normal
Title: libjpeg-turbo: User-assisted execution of arbitrary code
Date: December 31, 2016
Bugs: #585782
ID: 201612-55

– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –

Synopsis
========

An out-of-bounds read in libjpeg-turbo might allow remote attackers to
execute arbitrary code.

Background
==========

libjpeg-turbo is a JPEG image codec that uses SIMD instructions (MMX,
SSE2, NEON, AltiVec) to accelerate baseline JPEG compression and
decompression.

Affected packages
=================

——————————————————————-
Package / Vulnerable / Unaffected
——————————————————————-
1 media-libs/libjpeg-turbo
< 1.5.0 >= 1.5.0

Description
===========

The accelerated Huffman decoder was previously invoked if there were
128 bytes in the input buffer. However, it is possible to construct a
JPEG image with Huffman blocks > 430 bytes in length. This release
simply increases the minimum buffer size for the accelerated Huffman
decoder to 512 bytes, which should accommodate any possible input.

Impact
======

A remote attacker could coerce the victim to run a specially crafted
image file resulting in the execution of arbitrary code.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All libjpeg-turbo users should upgrade to the latest version:

# emerge –sync
# emerge –ask –oneshot –verbose “>=media-libs/libjpeg-turbo-1.5.0”

References
==========

[ 1 ] LJT-01-005
https://wiki.mozilla.org/images/7/77/Libjpeg-turbo-report.pdf
[ 2 ] Prevent overread when decoding malformed JPEG

https://github.com/libjpeg-turbo/libjpeg-turbo/commit/0463f7c9aad060fcd56e98d025ce16185279e2bc

Availability
============

This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

https://security.gentoo.org/glsa/201612-55

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 2016 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

—–BEGIN PGP SIGNATURE—–
Version: GnuPG v2.0
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=YmWP
—–END PGP SIGNATURE—–

AutorVlatka Misic
Cert idNCERT-REF-2017-01-0015-ADV
CveCERT-CVE-DUMMY
ID izvornikaCERT-ORIGID-DUMMY
ProizvodCERT-DUMMY-PRODUCT
Izvorhttp://www.adobe.com/
Top
More in Preporuke
Sigurnosni nedostaci programskog paketa Xen

Otkriveni su sigurnosni nedostaci u programskom paketu Xen za operacijski sustav Gentoo. Otkriveni nedostaci potencijalnim lokalnim napadačima omogućuju izvršavanje proizvoljnog...

Close