#VU6329 Out-of-bounds read in Mozilla Firefox and Firefox ESR - CVE-2017-5446
Published: April 19, 2017
Vulnerability identifier: #VU6329
Vulnerability risk: High
CVSSv4.0: 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-2017-5446
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Mozilla Firefox
Firefox ESR
Mozilla Firefox
Firefox ESR
Software vendor:
Mozilla
Mozilla
Description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to boundary error when an HTTP/2 connection to a servers sends DATA frames with incorrect data content. A remote attacker can trigger out-of-bounds read and gain access to sensitive system memory.
Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.
Remediation
Update to Firefox 53, Firefox ESR 45.9 or Firefox ESR 52.1.