Gnash: Multiple vulnerabilities

2012-07-09T00:00:00
ID GLSA-201207-08
Type gentoo
Reporter Gentoo Foundation
Modified 2012-07-09T00:00:00

Description

Background

Gnash is a GNU flash movie player that supports many SWF features.

Description

Multiple vulnerabilities have been found in Gnash:

  • The "nsPluginInstance::setupCookies()" function in plugin.cpp creates world-readable cookies with predictable file names (CVE-2011-4328).
  • The "GnashImage::size()" function in GnashImage.h contains an integer overflow error which could cause a heap-based buffer overflow (CVE-2012-1175).

Impact

A remote attacker could entice a user to open a specially crafted SWF file, possibly resulting in execution of arbitrary code or a Denial of Service condition. Furthermore, a local attacker may be able to obtain sensitive information.

Workaround

There is no known workaround at this time.

Resolution

All Gnash users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=www-plugins/gnash-0.8.10-r2"