CVE-2021-21856 Integer overflow in GPAC
An attacker can execute arbitrary code by tricking a user into opening a malicious MPEG-4 video file processed by the GPAC library.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2021-21856?
CVE-2021-21856 is a high-severity vulnerability in Gpac Gpac, published on 18 Aug 2021. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
Multiple exploitable integer overflow vulnerabilities exist within the MPEG-4 decoding functionality of the GPAC Project on Advanced Content library v1.0.1. A specially crafted MPEG-4 input can cause an integer overflow due to unchecked addition arithmetic resulting in a heap-based buffer overflow that causes memory corruption. An attacker can convince a user to open a video to trigger this vulnerability.
Which versions are affected by CVE-2021-21856?
It affects 1 product.
Products include Gpac Gpac.
How do I fix CVE-2021-21856?
No fix has been published for CVE-2021-21856 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-21856 being exploited?
There is no known exploitation of CVE-2021-21856 in the wild and no public exploit code.
Other vulnerabilities in Gpac Gpac
Sources
Also known as GHSA-mj8w-c2h5-v9gc, UBUNTU-CVE-2021-21856.