Buffer overflow in Mozilla Firefox - CVE-2020-6801
Published: February 11, 2020
Vulnerability identifier: #VU25125
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-2020-6801
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 HTML content. A remote attacker can create a specially crafted website, 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
firefox (Ubuntu package)
Arch Linux
firefox (Ubuntu package)
How to mitigate CVE-2020-6801
Install updates from vendor's website.
Mozilla Firefox - update to 73.0
firefox (Ubuntu package) - addressed in versions 73.0+build3-0ubuntu0.18.04.1, 73.0+build3-0ubuntu0.19.10.1, 73.0.1+build1-0ubuntu0.16.04.1
firefox (Ubuntu package) - addressed in versions 73.0+build3-0ubuntu0.18.04.1, 73.0+build3-0ubuntu0.19.10.1, 73.0.1+build1-0ubuntu0.16.04.1