Buffer overflow in crossbeam-channel - CVE-2020-15254
Published: October 16, 2020 / Updated: October 20, 2020
Vulnerability identifier: #VU47742
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-2020-15254
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 within the "Vec::from_iter" function in crossbeam-channel. A remote attacker can create a specially crafted data to the application, 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
crossbeam-channel
Arch Linux
Ubuntu
firefox (Alpine package)
firefox (Ubuntu package)
Mozilla Firefox
Arch Linux
Ubuntu
firefox (Alpine package)
firefox (Ubuntu package)
Mozilla Firefox
How to mitigate CVE-2020-15254
Install updates from vendor's website.
crossbeam-channel - update to 0.4.4
Mozilla Firefox - update to 82.0
firefox (Ubuntu package) - addressed in versions 82.0+build2-0ubuntu0.16.04.5, 82.0+build2-0ubuntu0.18.04.1, 82.0+build2-0ubuntu0.20.04.1, 82.0+build2-0ubuntu0.20.10.1
Mozilla Firefox - update to 82.0
firefox (Ubuntu package) - addressed in versions 82.0+build2-0ubuntu0.16.04.5, 82.0+build2-0ubuntu0.18.04.1, 82.0+build2-0ubuntu0.20.04.1, 82.0+build2-0ubuntu0.20.10.1