Out-of-bounds write in Firefox ESR - CVE-2018-5129

CSH
CYBERSECURITY HELP
Sign In REGISTER
 
Main Vulnerability Database Vulnerabilities #VU10968

Out-of-bounds write in Firefox ESR - CVE-2018-5129

Published: March 13, 2018


Vulnerability identifier: #VU10968
CSH Severity: High
CVSS v4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2018-5129
CWE-ID: CWE-787
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

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

The weakness exists due to a lack of parameter validation on IPC messages. A remote attacker can supply specially crafted malformed IPC messages, trigger out-of-bounds write, escape sandbox and execute arbitrary code.

Successful exploitation of the vulnerability may result in system compromise.

Affected software

Firefox ESR
Mozilla Firefox
Debian Linux
Arch Linux
Gentoo Linux
Red Hat Enterprise Linux for x86_64
Red Hat Enterprise Linux Server
Red Hat Enterprise Linux for Scientific Computing
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux Desktop
Red Hat Enterprise Linux Workstation
Red Hat Enterprise Linux for Power
firefox (Ubuntu package)
Mozilla Thunderbird

How to mitigate CVE-2018-5129

Update to version ESR 52.7.

firefox (Ubuntu package) - addressed in versions 59.0+build5-0ubuntu0.14.04.1, 59.0+build5-0ubuntu0.16.04.1, 59.0+build5-0ubuntu0.17.10.1

External References

Related Security Bulletins