Buffer overflow in Mozilla Firefox - CVE-2020-6815
Published: March 10, 2020 / Updated: March 10, 2020
Vulnerability identifier: #VU25860
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-2020-6815
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 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)
firefox (Alpine package)
Cloud App Management V2018
Arch Linux
firefox (Ubuntu package)
firefox (Alpine package)
Cloud App Management V2018
How to mitigate CVE-2020-6815
Install updates from vendor's website.
Mozilla Firefox - update to 74.0
firefox (Ubuntu package) - addressed in versions 74.0+build3-0ubuntu0.16.04.1, 74.0+build3-0ubuntu0.18.04.1, 74.0+build3-0ubuntu0.19.10.1
firefox (Alpine package) - update to 74.0-r0
Cloud App Management V2018 - update to 2020.1.0
firefox (Ubuntu package) - addressed in versions 74.0+build3-0ubuntu0.16.04.1, 74.0+build3-0ubuntu0.18.04.1, 74.0+build3-0ubuntu0.19.10.1
firefox (Alpine package) - update to 74.0-r0
Cloud App Management V2018 - update to 2020.1.0