USN-2424-1: Firefox vulnerabilities

2 December 2014

firefox vulnerabilities

A security issue affects these releases of Ubuntu and its derivatives:

  • Ubuntu 14.10
  • Ubuntu 14.04 LTS
  • Ubuntu 12.04 LTS

Summary

Firefox could be made to crash or run programs as your login if it opened a malicious website.

Software Description

  • firefox - Mozilla Open Source web browser

Details

Gary Kwong, Randell Jesup, Nils Ohlmeier, Jesse Ruderman, Max Jonas Werner, Christian Holler, Jon Coppeard, Eric Rahm, Byron Campen, Eric Rescorla, and Xidorn Quan discovered multiple memory safety issues in Firefox. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit these to cause a denial of service via application crash, or execute arbitrary code with the privileges of the user invoking Firefox. (CVE-2014-1587, CVE-2014-1588)

Cody Crews discovered a way to trigger chrome-level XBL bindings from web content in some circumstances. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit this to bypass security restrictions. (CVE-2014-1589)

Joe Vennix discovered a crash when using XMLHttpRequest in some circumstances. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit this to cause a denial of service. (CVE-2014-1590)

Muneaki Nishimura discovered that CSP violation reports did not remove path information in some circumstances. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit this to obtain sensitive information. (CVE-2014-1591)

Berend-Jan Wever discovered a use-after-free during HTML parsing. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit this to cause a denial of service via application crash or execute arbitrary code with the privileges of the user invoking Firefox. (CVE-2014-1592)

Abhishek Arya discovered a buffer overflow when parsing media content. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit this to cause a denial of service via application crash or execute arbitrary code with the privileges of the user invoking Firefox. (CVE-2014-1593)

Byoungyoung Lee, Chengyu Song, and Taesoo Kim discovered a bad cast in the compositor. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit this to cause undefined behaviour, a denial of service via application crash or execute abitrary code with the privileges of the user invoking Firefox. (CVE-2014-1594)

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 14.10
firefox - 34.0+build2-0ubuntu0.14.10.2
Ubuntu 14.04 LTS
firefox - 34.0+build2-0ubuntu0.14.04.1
Ubuntu 12.04 LTS
firefox - 34.0+build2-0ubuntu0.12.04.1

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

After a standard system update you need to restart Firefox to make all the necessary changes.

References