USN-920-1: Firefox 3.0 and Xulrunner vulnerabilities

Ubuntu Security Notice USN-920-1

9th April, 2010

firefox-3.0, xulrunner-1.9 vulnerabilities

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

  • Ubuntu 9.04
  • Ubuntu 8.10
  • Ubuntu 8.04 LTS

Software description

  • firefox-3.0
  • xulrunner-1.9

Details

Martijn Wargers, Josh Soref, Jesse Ruderman, and Ehsan Akhgari discovered
flaws in the browser engine of Firefox. If a user were tricked into viewing
a malicious website, a remote attacker could cause a denial of service or
possibly execute arbitrary code with the privileges of the user invoking
the program. (CVE-2010-0174)

It was discovered that Firefox could be made to access previously freed
memory. If a user were tricked into viewing a malicious website, a remote
attacker could cause a denial of service or possibly execute arbitrary code
with the privileges of the user invoking the program. (CVE-2010-0175,
CVE-2010-0176, CVE-2010-0177)

Paul Stone discovered that Firefox could be made to change a mouse click
into a drag and drop event. If the user could be tricked into performing
this action twice on a crafted website, an attacker could execute
arbitrary JavaScript with chrome privileges. (CVE-2010-0178)

It was discovered that the XMLHttpRequestSpy module as used by the Firebug
add-on could be used to escalate privileges within the browser. If the user
had the Firebug add-on installed and were tricked into viewing a malicious
website, an attacker could potentially run arbitrary JavaScript.
(CVE-2010-0179)

Update instructions

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

Ubuntu 9.04:
firefox-3.0 3.0.19+nobinonly-0ubuntu0.9.04.1
abrowser 3.0.19+nobinonly-0ubuntu0.9.04.1
xulrunner-1.9 1.9.0.19+nobinonly-0ubuntu0.9.04.1
Ubuntu 8.10:
firefox-3.0 3.0.19+nobinonly-0ubuntu0.8.10.1
abrowser 3.0.19+nobinonly-0ubuntu0.8.10.1
xulrunner-1.9 1.9.0.19+nobinonly-0ubuntu0.8.10.1
Ubuntu 8.04 LTS:
firefox-3.0 3.0.19+nobinonly-0ubuntu0.8.04.1
xulrunner-1.9 1.9.0.19+nobinonly-0ubuntu0.8.04.1

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

After a standard system upgrade you need to restart Firefox and any
applications that use Xulrunner to effect the necessary changes.

References

CVE-2010-0174, CVE-2010-0175, CVE-2010-0176, CVE-2010-0177, CVE-2010-0178, CVE-2010-0179