Buffer overflow in Mozilla Firefox - CVE-2018-18503
Published: January 29, 2019
Vulnerability identifier: #VU17259
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-2018-18503
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 vulnerability exists due to a boundary error when processing audio buffer manipulations with JavaScript. A remote attacker can create a specially crafted web page, trick the victim into visiting it, trigger memory corruption and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Affected software
Mozilla Firefox
Arch Linux
Fedora
firefox
Arch Linux
Fedora
firefox
How to mitigate CVE-2018-18503
Install updates from vendor's website.
Mozilla Firefox - update to 65.0
firefox - addressed in versions 65.0-1.fc28, 65.0-1.fc29
firefox - addressed in versions 65.0-1.fc28, 65.0-1.fc29