SB2016112901 - Remote code execution in Mozilla Firefox

Description

This security bulletin contains information about 1 security vulnerability.

1) Use-after-free (CVE-ID: CVE-2016-9079)

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to use-after-free error when processing SVG animation in nsSMILTimeContainer::NotifyTimeChange() function. A remote attacker can create a specially crafted web page, host malicious SVG file on it and execute arbitrary code on vulnerable system.

Successful exploitation may allow an attacker to gain complete control over vulnerable system.

Note: this vulnerability is being publicly exploited against Tor Browser users.

Remediation

Install update from vendor's website.

References

• https://blog.torproject.org/blog/tor-browser-607-released
• https://www.mozilla.org/en-US/security/advisories/mfsa2016-92/
• https://www.mozilla.org/en-US/thunderbird/45.5.1/releasenotes/
• http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html