Security bypass in Mozilla Firefox - CVE-2017-5400
Published: March 7, 2017
Vulnerability identifier: #VU5921
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-2017-5400
CWE-ID: CWE-265
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Mozilla
Affected software:
Mozilla Firefox
Mozilla Firefox
Detailed vulnerability description
The vulnerability allows a remote attacker to bypass implemented security mechanisms.
The vulnerability exists due to an error within asm.js. A remote attacker can perform a JIT-spray technique combined with a heap spray and bypass implemented ASLR and DEP protections.
Successful exploitation of the vulnerability may allow an attacker to leverage exploitation of other remote code execution vulnerabilities.
How to mitigate CVE-2017-5400
Update to Firefox 52.