Arbitrary code execution in Mozilla Firefox and Oracle Linux - CVE-2016-5280

Vulnerability identifier: #VU608

CSH Severity: High

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber

CVE-ID: CVE-2016-5280

CWE-ID: CWE-284

Exploitation vector: Remote access

Exploit availability: No public exploit available

Vendor: Mozilla

Oracle

Affected software:
Mozilla Firefox

Oracle Linux

The vulnerability may lead to arbitrary code execution on the target system.
The weakness exists during changing text direction. A use-after-free memory error in mozilla::nsTextNodeDirectionalityMap::RemoveElementFromMap() allows attackers to execute arbitrary code.
Successful exploitation of the vulnerability results in arbitrary code execution on the vulnerable system.

Update to 49.0.

• https://www.mozilla.org/en-US/security/advisories/mfsa2016-85/
• http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html
• http://www.oracle.com/technetwork/topics/security/bulletinoct2016-3090566.html