Articles / Debian: Security update for…

Debian: Security update for Iceweasel

Several vulnerabilities have been discovered in Iceweasel, a web browser based on Firefox. The included XULRunner library provides rendering services for several other applications. Benoit Jacob, Jesse Ruderman, Christian Holler, and Bill McCloskey identified several memory safety problems that may lead to the execution of arbitrary code. Mario Gomes and Code Audit Labs discovered that it is possible to force iceweasel to display the URL of the previous entered site through drag and drop actions to the address bar. This can be abused to perform phishing attacks.

Abhishek Arya discovered a use-after-free problem in nsDocument::AdoptNode that may lead to the execution of arbitrary code. moz_bug_r_a4 discovered that it is possible to perform cross-site scripting attacks through the context menu when using data: URLs. moz_bug_r_a4 discovered that in certain cases, javascript: URLs can be executed so that scripts can escape the JavaScript sandbox and run with elevated privileges.

Updated packages are available from security.debian.org.

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

- -------------------------------------------------------------------------
Debian Security Advisory DSA-2514-1                   security@debian.org
http://www.debian.org/security/                                Nico Golde
July 17, 2012                          http://www.debian.org/security/faq
- -------------------------------------------------------------------------

Package        : iceweasel
Vulnerability  : several
Problem type   : remote
Debian-specific: no
CVE ID         : CVE-2012-1948 CVE-2012-1950 CVE-2012-1954 CVE-2012-1966
                CVE-2012-1967

Several vulnerabilities have been discovered in Iceweasel, a web
browser based on Firefox. The included XULRunner library provides
rendering services for several other applications included in Debian.

CVE-2012-1948

 Benoit Jacob, Jesse Ruderman, Christian Holler, and Bill McCloskey
 identified several memory safety problems that may lead to the
 execution of arbitrary code.

CVE-2012-1950

 Mario Gomes and Code Audit Labs discovered that it is possible
 to force iceweasel to display the URL of the previous entered site
 through drag and drop actions to the address bar. This can be
 abused to perform phishing attacks.

CVE-2012-1954

 Abhishek Arya discovered a use-after-free problem in nsDocument::AdoptNode
 that may lead to the execution of arbitrary code.

CVE-2012-1966

 moz_bug_r_a4 discovered that it is possible to perform cross-site
 scripting attacks through the context menu when using data: URLs.

CVE-2012-1967

 moz_bug_r_a4 discovered that in certain cases, javascript: URLs can
 be executed so that scripts can escape the JavaScript sandbox and run
 with elevated privileges.

Note: We'd like to advise users of Iceweasel's 3.5 branch in Debian
stable to consider to upgrade to the Iceweasel 10.0 ESR (Extended
Support Release) which is now available in Debian Backports.
Although Debian will continue to support Iceweasel 3.5 in stable with
security updates, this can only be done on a best effort base as
upstream provides no such support anymore. On top of that, the 10.0
branch adds proactive security features to the browser.


For the stable distribution (squeeze), this problem has been fixed in
version 3.5.16-17.

For the unstable distribution (sid), this problem has been fixed in
version 10.0.6esr-1.


We recommend that you upgrade your iceweasel 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

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.12 (GNU/Linux)

iEYEARECAAYFAlAFxR4ACgkQHYflSXNkfP+OmACghYYQObCL3t8Hawt7aDdH0v9J
xSEAnAzeeAkbopOyqaKxXUbfjtzsxew5
=YkCY
-----END PGP SIGNATURE-----
Screenshot

Project Spotlight

Kigo Video Converter Ultimate for Mac

A tool for converting and editing videos.

Screenshot

Project Spotlight

Kid3

An efficient tagger for MP3, Ogg/Vorbis, and FLAC files.