Sendbox bypass in Mozilla Firefox and Firefox ESR - CVE-2017-5455
Published: April 19, 2017
Vulnerability identifier: #VU6334
CSH Severity: High
CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2017-5455
CWE-ID: CWE-265
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to escape sendbox.
The vulnerability exists due to an error in internal feed reader APIs implementation. A remote attacker can use escape the sendbox and leverage another remote code execution vulnerability to compromise vulnerable system.
Successful exploitation of the vulnerability may allow an attacker to escape sendbox and potentially compromise vulnerable system.
Affected software
Mozilla Firefox
Firefox ESR
Arch Linux
SUSE Linux
Ubuntu
Firefox ESR
Arch Linux
SUSE Linux
Ubuntu
How to mitigate CVE-2017-5455
Update to Firefox 53 or Firefox ESR 52.1.