This update provides stability updates for Firefox and Xulrunner.
USN-975-1 fixed vulnerabilities in Firefox and Xulrunner. Some users reported stability problems under certain circumstances. This update fixes the problem.
16 September 2010
A security issue affects these releases of Ubuntu and its derivatives:
This update provides stability updates for Firefox and Xulrunner.
USN-975-1 fixed vulnerabilities in Firefox and Xulrunner. Some users reported stability problems under certain circumstances. This update fixes the problem.
We apologize for the inconvenience.
Original advisory details:
Several dangling pointer vulnerabilities were discovered in Firefox. An attacker could exploit this to crash the browser or possibly run arbitrary code as the user invoking the program. (CVE-2010-2760, CVE-2010-2767, CVE-2010-3167)
Blake Kaplan and Michal Zalewski discovered several weaknesses in the XPCSafeJSObjectWrapper (SJOW) security wrapper. If a user were tricked into viewing a malicious site, a remote attacker could use this to run arbitrary JavaScript with chrome privileges. (CVE-2010-2762)
Matt Haggard discovered that Firefox did not honor same-origin policy when processing the statusText property of an XMLHttpRequest object. If a user were tricked into viewing a malicious site, a remote attacker could use this to gather information about servers on internal private networks. (CVE-2010-2764)
Chris Rohlf discovered an integer overflow when Firefox processed the HTML frameset element. If a user were tricked into viewing a malicious site, a remote attacker could use this to crash the browser or possibly run arbitrary code as the user invoking the program. (CVE-2010-2765)
Several issues were discovered in the browser engine. If a user were tricked into viewing a malicious site, a remote attacker could use this to crash the browser or possibly run arbitrary code as the user invoking the program. (CVE-2010-2766, CVE-2010-3168)
David Huang and Collin Jackson discovered that the <object> tag could override the charset of a framed HTML document in another origin. An attacker could utilize this to perform cross-site scripting attacks. (CVE-2010-2768)
Paul Stone discovered that with designMode enabled an HTML selection containing JavaScript could be copied and pasted into a document and have the JavaScript execute within the context of the site where the code was dropped. An attacker could utilize this to perform cross-site scripting attacks. (CVE-2010-2769)
A buffer overflow was discovered in Firefox when processing text runs. If a user were tricked into viewing a malicious site, a remote attacker could use this to crash the browser or possibly run arbitrary code as the user invoking the program. (CVE-2010-3166)
Peter Van der Beken, Jason Oster, Jesse Ruderman, Igor Bukanov, Jeff Walden, Gary Kwong and Olli Pettay discovered several flaws in the browser engine. If a user were tricked into viewing a malicious site, a remote attacker could use this to crash the browser or possibly run arbitrary code as the user invoking the program. (CVE-2010-3169)
The problem can be corrected by updating your system to the following package versions:
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.
Vulmon