[SECURITY] [DSA 2435-1] gnash security update

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Debian Security Advisory DSA-2435-1 security@debian.org
http://www.debian.org/security/ Gabriele Giacone
March 19, 2012 http://www.debian.org/security/faq
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Package : gnash
Vulnerability : several
Problem type : local / local (remote)
Debian-specific: no
CVE ID : CVE-2010-4337 CVE-2011-4328 CVE-2012-1175
Debian Bug : 605419 649384 664023

Several vulnerabilities have been identified in Gnash, the GNU Flash
player.

CVE-2012-1175

Tielei Wang from Georgia Tech Information Security Center discovered a
vulnerability in GNU Gnash which is caused due to an integer overflow
error and can be exploited to cause a heap-based buffer overflow by
tricking a user into opening a specially crafted SWF file.

CVE-2011-4328

Alexander Kurtz discovered an unsafe management of HTTP cookies. Cookie
files are stored under /tmp and have predictable names, vulnerability
that allows a local attacker to overwrite arbitrary files the users has
write permissions for, and are also world-readable which may cause
information leak.

CVE-2010-4337

Jakub Wilk discovered an unsafe management of temporary files during the
build process. Files are stored under /tmp and have predictable names,
vulnerability that allows a local attacker to overwrite arbitrary files
the users has write permissions for.

For the stable distribution (squeeze), this problem has been fixed in
version 0.8.8-5+squeeze1.

For the unstable distribution (sid), this problem has been fixed in
version 0.8.10-5.

We recommend that you upgrade your gnash packages.

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: http://www.debian.org/security/

Mailing list: debian-security-announce@lists.debian.org
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