Protect yourself against future threats.
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AUSCERT External Security Bulletin Redistribution
ESB-2016.0094
libpng security update
14 January 2016
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: libpng
Publisher: Debian
Operating System: Debian GNU/Linux 7
Debian GNU/Linux 8
Impact/Access: Denial of Service -- Remote with User Interaction
Resolution: Patch/Upgrade
CVE Names: CVE-2015-8540 CVE-2015-8472 CVE-2015-8126
Reference: ESB-2015.2856
Original Bulletin:
http://www.debian.org/security/2016/dsa-3443
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Debian Security Advisory DSA-3443-1 security@debian.org
https://www.debian.org/security/ Salvatore Bonaccorso
January 13, 2016 https://www.debian.org/security/faq
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Package : libpng
CVE ID : CVE-2015-8472 CVE-2015-8540
Debian Bug : 807112 807694
Several vulnerabilities have been discovered in the libpng PNG library.
The Common Vulnerabilities and Exposures project identifies the
following problems:
CVE-2015-8472
It was discovered that the original fix for CVE-2015-8126 was
incomplete and did not detect a potential overrun by applications
using png_set_PLTE directly. A remote attacker can take advantage of
this flaw to cause a denial of service (application crash).
CVE-2015-8540
Xiao Qixue and Chen Yu discovered a flaw in the png_check_keyword
function. A remote attacker can potentially take advantage of this
flaw to cause a denial of service (application crash).
For the oldstable distribution (wheezy), these problems have been fixed
in version 1.2.49-1+deb7u2.
For the stable distribution (jessie), these problems have been fixed in
version 1.2.50-2+deb8u2.
We recommend that you upgrade your libpng packages.
Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/
Mailing list: debian-security-announce@lists.debian.org
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