Use-after-free in Mozilla Firefox and Firefox ESR - CVE-2017-5031
Published: May 6, 2017 / Updated: May 8, 2017
Vulnerability identifier: #VU6433
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-2017-5031
CWE-ID: CWE-416
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Mozilla
Affected software:
Mozilla Firefox
Firefox ESR
Mozilla Firefox
Firefox ESR
Detailed vulnerability description
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to use-after-free error during Buffer11 API calls within the ANGLE graphics library when processing WebGL content. A remote attacker can create a specially crafted web page with malicious WebGL content, trick the victim into visiting it and execute arbitrary code on the target system.
Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.
The vulnerability resides within libGLES, which is only present on Windows systems. Other operating systems are not affected.
How to mitigate CVE-2017-5031
Update to version Firefox 53.0.2 or Firefox ESR 52.1.1.