Firefox could be made to crash or run programs as your login if it opened a malicious website.
Multiple memory safety issues were discovered in Firefox. If a user were tricked in to opening a specially crafted page, an attacker could possibly exploit these to cause a denial of service via application crash, or potentially execute arbitrary code with the privileges of the user invoking Firefox. (CVE-2013-1739, CVE-2013-5590, CVE-2013-5591, CVE-2013-5592)
29 October 2013
A security issue affects these releases of Ubuntu and its derivatives:
Firefox could be made to crash or run programs as your login if it opened a malicious website.
Multiple memory safety issues were discovered in Firefox. If a user were tricked in to opening a specially crafted page, an attacker could possibly exploit these to cause a denial of service via application crash, or potentially execute arbitrary code with the privileges of the user invoking Firefox. (CVE-2013-1739, CVE-2013-5590, CVE-2013-5591, CVE-2013-5592)
Jordi Chancel discovered that HTML select elements could display arbitrary content. An attacker could potentially exploit this to conduct URL spoofing or clickjacking attacks (CVE-2013-5593)
Abhishek Arya discovered a crash when processing XSLT data in some circumstances. An attacker could potentially exploit this to execute arbitrary code with the privileges of the user invoking Firefox. (CVE-2013-5604)
Dan Gohman discovered a flaw in the Javascript engine. When combined with other vulnerabilities, an attacked could possibly exploit this to execute arbitrary code with the privileges of the user invoking Firefox. (CVE-2013-5595)
Ezra Pool discovered a crash on extremely large pages. An attacked could potentially exploit this to execute arbitrary code with the privileges of the user invoking Firefox. (CVE-2013-5596)
Byoungyoung Lee discovered a use-after-free when updating the offline cache. An attacker could potentially exploit this to cause a denial of service via application crash or execute arbitrary code with the privileges of the user invoking Firefox. (CVE-2013-5597)
Cody Crews discovered a way to append an iframe in to an embedded PDF object displayed with PDF.js. An attacked could potentially exploit this to read local files, leading to information disclosure. (CVE-2013-5598)
Multiple use-after-free flaws were discovered in Firefox. An attacker could potentially exploit these to cause a denial of service via application crash or execute arbitrary code with the privileges of the user invoking Firefox. (CVE-2013-5599, CVE-2013-5600, CVE-2013-5601)
A memory corruption flaw was discovered in the Javascript engine when using workers with direct proxies. An attacker could potentially exploit this to cause a denial of service via application crash or execute arbitrary code with the privileges of the user invoking Firefox. (CVE-2013-5602)
Abhishek Arya discovered a use-after-free when interacting with HTML document templates. An attacker could potentially exploit this to cause a denial of service via application crash or execute arbitrary code with the privileges of the user invoking Firefox. (CVE-2013-5603)
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 to make all the necessary changes.
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