CVE-2021-30473 Use after free in n/a
A use-after-free vulnerability in libaom 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
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2021-30473?
CVE-2021-30473 is a critical use after free vulnerability in Fedoraproject Fedora, published on 6 May 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
aom_image.c in libaom in AOMedia before 2021-04-07 frees memory that is not located on the heap.
Weakness: CWE-763
Which versions are affected by CVE-2021-30473?
It affects 2 products.
Linux distribution packages (4)
libaom SUSE:Linux Enterprise Module for Desktop Applications 15 SP3 | All versions | 1.0.0-150200.3.12.1 |
libaom SUSE:Linux Enterprise Real Time 15 SP2 | All versions | 1.0.0-150200.3.12.1 |
libaom openSUSE:Leap 15.3 | All versions | 1.0.0-150200.3.12.1 |
libaom openSUSE:Leap 15.4 | All versions | 1.0.0-150200.3.12.1 |
Products include Aomedia Aomedia, Fedoraproject Fedora.
How do I fix CVE-2021-30473?
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-2021-30473 being exploited?
There is no known exploitation of CVE-2021-30473 in the wild and no public exploit code.
Other vulnerabilities in Fedoraproject Fedora
Sources
Also known as ALPINE-CVE-2021-30473, DEBIAN-CVE-2021-30473, GHSA-jr38-ch73-ccgx, SUSE-SU-2022:1436-1, UBUNTU-CVE-2021-30473.