CVE-2020-27814 Memory corruption in openjpeg
Heap buffer overflow in OpenJPEG allows attackers to cause crashes or execute arbitrary code via malicious PNG files.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2020-27814?
CVE-2020-27814 is a high-severity memory corruption vulnerability in Debian Debian Linux, published on 25 Jan 2021. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
A heap-buffer overflow was found in the way openjpeg2 handled certain PNG format files. An attacker could use this flaw to cause an application crash or in some cases execute arbitrary code with the permission of the user running such an application.
Weakness: CWE-122
Which versions are affected by CVE-2020-27814?
It affects 2 products.
Products include Debian Debian Linux, Uclouvain Openjpeg.
How do I fix CVE-2020-27814?
Apply the vendor's patch.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2020-27814 being exploited?
There is no known exploitation of CVE-2020-27814 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as ALPINE-CVE-2020-27814, AZL-45072, DEBIAN-CVE-2020-27814, GHSA-2rjp-9cc6-3v2j, JLSEC-2026-535, UBUNTU-CVE-2020-27814.