USN-645-2: Firefox vulnerabilities

24 September 2008

firefox vulnerabilities

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

  • Ubuntu 6.06 LTS

Software Description

  • firefox

Details

USN-645-1 fixed vulnerabilities in Firefox and xulrunner for Ubuntu 7.04, 7.10 and 8.04 LTS. This provides the corresponding update for Ubuntu 6.06 LTS.

Original advisory details:

Justin Schuh, Tom Cross and Peter Williams discovered errors in the Firefox URL parsing routines. If a user were tricked into opening a crafted hyperlink, an attacker could overflow a stack buffer and execute arbitrary code. (CVE-2008-0016)

It was discovered that the same-origin check in Firefox could be bypassed. If a user were tricked into opening a malicious website, an attacker may be able to execute JavaScript in the context of a different website. (CVE-2008-3835)

Several problems were discovered in the JavaScript engine. This could allow an attacker to execute scripts from page content with chrome privileges. (CVE-2008-3836)

Paul Nickerson discovered Firefox did not properly process mouse click events. If a user were tricked into opening a malicious web page, an attacker could move the content window, which could potentially be used to force a user to perform unintended drag and drop operations. (CVE-2008-3837)

Several problems were discovered in the browser engine. This could allow an attacker to execute code with chrome privileges. (CVE-2008-4058, CVE-2008-4059, CVE-2008-4060)

Drew Yao, David Maciejak and other Mozilla developers found several problems in the browser engine of Firefox. If a user were tricked into opening a malicious web page, an attacker could cause a denial of service or possibly execute arbitrary code with the privileges of the user invoking the program. (CVE-2008-4061, CVE-2008-4062, CVE-2008-4063, CVE-2008-4064)

Dave Reed discovered a flaw in the JavaScript parsing code when processing certain BOM characters. An attacker could exploit this to bypass script filters and perform cross-site scripting attacks. (CVE-2008-4065)

Gareth Heyes discovered a flaw in the HTML parser of Firefox. If a user were tricked into opening a malicious web page, an attacker could bypass script filtering and perform cross-site scripting attacks. (CVE-2008-4066)

Boris Zbarsky and Georgi Guninski independently discovered flaws in the resource: protocol. An attacker could exploit this to perform directory traversal, read information about the system, and prompt the user to save information in a file. (CVE-2008-4067, CVE-2008-4068)

Billy Hoffman discovered a problem in the XBM decoder. If a user were tricked into opening a malicious web page or XBM file, an attacker may be able to cause a denial of service via application crash. (CVE-2008-4069)

Update instructions

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

Ubuntu 6.06 LTS
firefox - 1.5.dfsg+1.5.0.15~prepatch080614e-0ubuntu3

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

After a standard system upgrade you need to restart Firefox to effect the necessary changes.

References