USN-2295-1: Firefox vulnerabilities

22 July 2014

firefox vulnerabilities

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

  • 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

Christian Holler, David Keeler, Byron Campen, Gary Kwong, Jesse Ruderman, Andrew McCreight, Alon Zakai, Bobby Holley, Jonathan Watt, Shu-yu Guo, Steve Fink, Terrence Cole, Gijs Kruitbosch and Cătălin Badea 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-2014-1547, CVE-2014-1548)

Atte Kettunen discovered a buffer overflow when interacting with WebAudio buffers. 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-2014-1549)

Atte Kettunen discovered a use-after-free in WebAudio. 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-2014-1550)

David Chan and Gijs Kruitbosch discovered that web content could spoof UI customization events in some circumstances, resulting in a limited ability to move UI icons. (CVE-2014-1561)

Jethro Beekman discovered a use-after-free when the FireOnStateChange event is triggered in some circumstances. An attacker could potentially exploit this to cause a denial of service via application crash or execute arbitrary code with the priviliges of the user invoking Firefox. (CVE-2014-1555)

Patrick Cozzi discovered a crash when using the Cesium JS library to generate WebGL content. An attacker could potentially exploit this to execute arbitrary code with the privilges of the user invoking Firefox. (CVE-2014-1556)

Tyson Smith and Jesse Schwartzentruber discovered a use-after-free in CERT_DestroyCertificate. 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-2014-1544)

A crash was discovered in Skia when scaling an image, if the scaling operation takes too long. An attacker could potentially exploit this to execute arbitrary code with the privileges of the user invoking Firefox. (CVE-2014-1557)

Christian Holler discovered several issues when parsing certificates with non-standard character encoding, resulting in the inability to use valid SSL certificates in some circumstances. (CVE-2014-1558, CVE-2014-1559, CVE-2014-1560)

Boris Zbarsky discovered that network redirects could cause an iframe to escape the confinements defined by its sandbox attribute in some circumstances. An attacker could potentially exploit this to conduct cross-site scripting attacks. (CVE-2014-1552)

Update instructions

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

Ubuntu 14.04 LTS
firefox - 31.0+build1-0ubuntu0.14.04.1
Ubuntu 12.04 LTS
firefox - 31.0+build1-0ubuntu0.12.04.1

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