CVE-2021-46021 Use after free in n/a
An attacker can cause a segmentation fault or application crash in GNU Recutils via a use-after-free vulnerability in record destruction.
- 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-2021-46021?
CVE-2021-46021 is a medium-severity use after free vulnerability in Fedoraproject Fedora, published on 14 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
An Use-After-Free vulnerability in rec_record_destroy() at rec-record.c of GNU Recutils v1.8.90 can lead to a segmentation fault or application crash.
Weakness: CWE-416
Which versions are affected by CVE-2021-46021?
It affects 2 products.
Products include Fedoraproject Fedora, Gnu Recutils.
How do I fix CVE-2021-46021?
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-2021-46021 being exploited?
There is no known exploitation of CVE-2021-46021 in the wild and no public exploit code.
Other vulnerabilities in Fedoraproject Fedora
Sources
Also known as DEBIAN-CVE-2021-46021, GHSA-gj92-2vg9-c8jv, UBUNTU-CVE-2021-46021.