USN-921-1: Firefox 3.5 and Xulrunner vulnerabilities

09 April 2010

Firefox 3.5 and Xulrunner vulnerabilities

Releases

Packages

  • firefox-3.5 -
  • xulrunner-1.9.1 -

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-2010-0173, 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)

Henry Sudhof discovered that an image tag could be used as a redirect to
a mailto: URL to launch an external mail handler. (CVE-2010-0181)

Wladimir Palant discovered that Firefox did not always perform security
checks on XML content. An attacker could exploit this to bypass security
policies to load certain resources. (CVE-2010-0182)

Update instructions

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

Ubuntu 9.10

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

Related notices

  • USN-920-1: xulrunner-1.9, abrowser, firefox-3.0