Several flaws were discovered in the Firefox browser and JavaScript engines. 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-2009-3070, CVE-2009-3071, CVE-2009-3072, CVE-2009-3074, CVE-2009-3075)
Jesse Ruderman and Dan Kaminsky discovered that Firefox did not adequately inform users when security modules were added or removed via PKCS11. If a user visited a malicious website, an attacker could exploit this to trick the user into installing a malicious PKCS11 module. (CVE-2009-3076)
10 September 2009
A security issue affects these releases of Ubuntu and its derivatives:
Several flaws were discovered in the Firefox browser and JavaScript engines. 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-2009-3070, CVE-2009-3071, CVE-2009-3072, CVE-2009-3074, CVE-2009-3075)
Jesse Ruderman and Dan Kaminsky discovered that Firefox did not adequately inform users when security modules were added or removed via PKCS11. If a user visited a malicious website, an attacker could exploit this to trick the user into installing a malicious PKCS11 module. (CVE-2009-3076)
It was discovered that Firefox did not properly manage memory when using XUL tree elements. 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-2009-3077)
Juan Pablo Lopez Yacubian discovered that Firefox did properly display certain Unicode characters in the location bar and other text fields when using a certain non-Ubuntu font. If a user configured Firefox to use this font, an attacker could exploit this to spoof the location bar, such as in a phishing attack. (CVE-2009-3078)
It was discovered that the BrowserFeedWriter in Firefox could be subverted to run JavaScript code from web content with elevated chrome privileges. If a user were tricked into viewing a malicious website, an attacker could exploit this to execute arbitrary code with the privileges of the user invoking the program. (CVE-2009-3079)
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 upgrade you need to restart Firefox and any applications that use xulrunner, such as Epiphany, to effect the necessary changes.
Vulmon