CVE-2024-56827 Openjpeg: heap buffer overflow in lib/openjp2/j2k.c
A heap buffer overflow in OpenJPEG's decompression utility can cause crashes or arbitrary code execution when specific options are used.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2024-56827?
CVE-2024-56827 is a medium-severity memory corruption vulnerability in Red Hat Enterprise Linux 10, published on 9 Jan 2025. 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 flaw was found in the OpenJPEG project. A heap buffer overflow condition may be triggered when certain options are specified while using the opj_decompress utility. This can lead to an application crash or other undefined behavior.
Weakness: CWE-122
Which versions are affected by CVE-2024-56827?
How do I fix CVE-2024-56827?
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-2024-56827 being exploited?
There is no known exploitation of CVE-2024-56827 in the wild and no public exploit code.
Sources
Also known as AZL-55447, AZL-55451, BELL-CVE-2024-56827, DEBIAN-CVE-2024-56827, GHSA-jq5v-29wx-7grq, OESA-2025-1043 and 1 more.