Memory corruption in Mozilla Firefox - CVE-2018-5160

Vulnerability identifier: #VU12531

CSH Severity: High

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

CVE-ID: CVE-2018-5160

CWE-ID: CWE-119

Exploitation vector: Remote access

Exploit availability: No public exploit available

Vendor: Mozilla

Affected software:
Mozilla Firefox

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

The weakness exists due to WebRTC can use a WrappedI420Buffer pixel buffer but the owning image object can be freed while it is still in use. A remote attacker can trick the victim into visiting a specially crafted website, cause the WebRTC encoder using uninitialized memory, trigger memory corruption and execute arbitrary code with elevated privileges.

Successful exploitation of the vulnerability result may result in system compromise.

Update to version 60.0.

• https://www.mozilla.org/en-US/security/advisories/mfsa2018-11/