CVE-2021-40566 Use after free in n/a
A heap use-after-free in GPAC's mp4box tool allows attackers to cause a denial of service via crafted media 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-2021-40566?
CVE-2021-40566 is a medium-severity use after free vulnerability in Gpac Gpac, published on 12 Jan 2022. 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 Segmentation fault casued by heap use after free vulnerability exists in Gpac through 1.0.1 via the mpgviddmx_process function in reframe_mpgvid.c when using mp4box, which causes a denial of service.
Weakness: CWE-416
Which versions are affected by CVE-2021-40566?
It affects 1 product.
Products include Gpac Gpac.
How do I fix CVE-2021-40566?
Upgrade to a fixed version.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2021-40566 being exploited?
There is no known exploitation of CVE-2021-40566 in the wild and no public exploit code.
Other vulnerabilities in Gpac Gpac
Sources
Also known as DEBIAN-CVE-2021-40566, GHSA-5xr9-fwxj-j4r9, UBUNTU-CVE-2021-40566.