CVE-2021-33453 Use after free in n/a
A use-after-free vulnerability in lrzip allows attackers to execute arbitrary code or cause a denial of service via crafted input.
- 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
- None listed
What is CVE-2021-33453?
CVE-2021-33453 is a high-severity use after free vulnerability in n/a, published on 26 Jul 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 issue was discovered in lrzip version 0.641. There is a use-after-free in ucompthread() in stream.c:1538.
Weakness: CWE-416
Which versions are affected by CVE-2021-33453?
It affects 1 product.
Products include Long Range Zip Project Long Range Zip.
How do I fix CVE-2021-33453?
No fix has been published for CVE-2021-33453 yet. Limit exposure of the affected software until one is available.
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-2021-33453 being exploited?
There is no known exploitation of CVE-2021-33453 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as DEBIAN-CVE-2021-33453, GHSA-5xh9-fg67-82m2, UBUNTU-CVE-2021-33453.