CVE-2021-30020 Memory corruption in n/a
A heap overflow in GPAC's HEVC parser allows attackers to execute arbitrary code or cause 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-2021-30020?
CVE-2021-30020 is a medium-severity memory corruption vulnerability in Gpac Gpac, published on 19 Apr 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
In the function gf_hevc_read_pps_bs_internal function in media_tools/av_parsers.c in GPAC 1.0.1 there is a loop, which with crafted file, pps->num_tile_columns may be larger than sizeof(pps->column_width), which results in a heap overflow in the loop.
Weakness: CWE-787
Which versions are affected by CVE-2021-30020?
It affects 1 product.
Products include Gpac Gpac.
How do I fix CVE-2021-30020?
Upgrade to a fixed version.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2021-30020 being exploited?
There is no known exploitation of CVE-2021-30020 in the wild and no public exploit code.
Other vulnerabilities in Gpac Gpac
Sources
Also known as DEBIAN-CVE-2021-30020, GHSA-865c-9wv7-4j76, UBUNTU-CVE-2021-30020.