USN-997-1: Firefox and Xulrunner vulnerabilities

Ubuntu Security Notice USN-997-1

20th October, 2010

firefox, firefox-3.0, firefox-3.5, xulrunner-1.9.1, xulrunner-1.9.2 vulnerabilities

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

  • Ubuntu 10.10
  • Ubuntu 10.04 LTS
  • Ubuntu 9.10
  • Ubuntu 9.04
  • Ubuntu 8.04 LTS

Summary

Firefox could be made to run programs as your login if it opened a specially crafted file.

Software description

  • firefox - safe and easy web browser from Mozilla
  • firefox-3.0 - safe and easy web browser from Mozilla
  • firefox-3.5 - safe and easy web browser from Mozilla
  • xulrunner-1.9.1 - XUL + XPCOM application runner
  • xulrunner-1.9.2 - XUL + XPCOM application runner

Details

Paul Nickerson, Jesse Ruderman, Olli Pettay, Igor Bukanov, Josh Soref, Gary
Kwong, Martijn Wargers, Siddharth Agarwal and Michal Zalewski discovered
various flaws in the browser engine. An attacker could exploit this to
crash the browser or possibly run arbitrary code as the user invoking the
program. (CVE-2010-3175, CVE-2010-3176)

Alexander Miller, Sergey Glazunov, and others discovered several flaws in
the JavaScript engine. An attacker could exploit this to crash the browser
or possibly run arbitrary code as the user invoking the program.
(CVE-2010-3179, CVE-2010-3180, CVE-2010-3183)

Robert Swiecki discovered that Firefox did not properly validate Gopher
URLs. If a user were tricked into opening a crafted file via Gopher, an
attacker could possibly run arbitrary JavaScript. (CVE-2010-3177)

Eduardo Vela Nava discovered that Firefox could be made to violate the
same-origin policy by using modal calls with JavaScript. An attacker could
exploit this to steal information from another site. (CVE-2010-3178)

Dmitri GribenkoDmitri Gribenko discovered that Firefox did not properly
setup the LD_LIBRARY_PATH environment variable. A local attacker could
exploit this to execute arbitrary code as the user invoking the program.
(CVE-2010-3182)

Update instructions

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

Ubuntu 10.10:
abrowser 3.6.11+build3+nobinonly-0ubuntu0.10.10.1
firefox 3.6.11+build3+nobinonly-0ubuntu0.10.10.1
xulrunner-1.9.2 1.9.2.11+build3+nobinonly-0ubuntu0.10.10.1
Ubuntu 10.04 LTS:
abrowser 3.6.11+build3+nobinonly-0ubuntu0.10.04.1
firefox 3.6.11+build3+nobinonly-0ubuntu0.10.04.1
xulrunner-1.9.2 1.9.2.11+build3+nobinonly-0ubuntu0.10.04.1
Ubuntu 9.10:
firefox-3.5 3.6.11+build3+nobinonly-0ubuntu0.9.10.1
xulrunner-1.9.1 1.9.1.14+build4+nobinonly-0ubuntu0.9.10.1
xulrunner-1.9.2 1.9.2.11+build3+nobinonly-0ubuntu0.9.10.1
Ubuntu 9.04:
firefox-3.0 3.6.11+build3+nobinonly-0ubuntu0.9.04.1
abrowser 3.6.11+build3+nobinonly-0ubuntu0.9.04.1
xulrunner-1.9.2 1.9.2.11+build3+nobinonly-0ubuntu0.9.04.1
Ubuntu 8.04 LTS:
firefox-3.0 3.6.11+build3+nobinonly-0ubuntu0.8.04.1
xulrunner-1.9.2 1.9.2.11+build3+nobinonly-0ubuntu0.8.04.1

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

After a standard system update you need to restart Firefox and any
applications that use Xulrunner to make all the necessary changes.

References

CVE-2010-3175, CVE-2010-3176, CVE-2010-3177, CVE-2010-3178, CVE-2010-3179, CVE-2010-3180, CVE-2010-3182, CVE-2010-3183