Buffer overflow in Mozilla Firefox - CVE-2020-15674
Published: September 23, 2020
Vulnerability identifier: #VU46967
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-2020-15674
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 HTML content. A remote attacker can create a specially crafted web page, trick the victim into opening 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
Ubuntu
firefox (Alpine package)
firefox (Ubuntu package)
Arch Linux
Ubuntu
firefox (Alpine package)
firefox (Ubuntu package)
How to mitigate CVE-2020-15674
Install updates from vendor's website.
Mozilla Firefox - update to 81.0
firefox (Ubuntu package) - addressed in versions 81.0+build2-0ubuntu0.16.04.1, 81.0+build2-0ubuntu0.18.04.1, 81.0+build2-0ubuntu0.20.04.1
firefox (Ubuntu package) - addressed in versions 81.0+build2-0ubuntu0.16.04.1, 81.0+build2-0ubuntu0.18.04.1, 81.0+build2-0ubuntu0.20.04.1