Memory corruption in Firefox ESR - CVE-2018-12389

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Main Vulnerability Database Vulnerabilities #VU15507

Memory corruption in Firefox ESR - CVE-2018-12389

Published: October 24, 2018


Vulnerability identifier: #VU15507
CSH Severity: High
CVSS v4: 8.6 [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]
CVE-ID: CVE-2018-12389
CWE-ID: CWE-119
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 boundary error when handling malicious input. A remote attacker can trick the victim into visiting a specially crafted website, trigger memory corruption and execute arbitrary code with elevated privileges.

Successful exploitation of the vulnerability may result in system compromise.

Affected software

Firefox ESR
Debian Linux
Gentoo Linux
Arch Linux
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux Desktop
Red Hat Enterprise Linux Workstation
Red Hat Enterprise Linux Server
Red Hat Enterprise Linux for Scientific Computing
Red Hat Enterprise Linux for Power
Opensuse
Mozilla Thunderbird

How to mitigate CVE-2018-12389

Update to version 60.3.

Firefox ESR - update to 60.3.0
Mozilla Thunderbird - update to 60.3

External References

Related Security Bulletins