CVE-2023-39741 Memory corruption in n/a

Medium 5.5 Published 17 Aug 2023 Updated 8 Oct 2024

Attackers can cause a denial of service via a crafted file exploiting a heap overflow in the lrzip library.

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-2023-39741?

CVE-2023-39741 is a medium-severity memory corruption vulnerability in n/a, published on 17 Aug 2023. 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

lrzip v0.651 was discovered to contain a heap overflow via the libzpaq::PostProcessor::write(int) function at /libzpaq/libzpaq.cpp. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted file.

Weakness: CWE-787

Which versions are affected by CVE-2023-39741?

It affects 1 product.

Products include Long Range Zip Project Long Range Zip.

How do I fix CVE-2023-39741?

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-2023-39741 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-39741 exists.

Sources

Also known as DEBIAN-CVE-2023-39741, GHSA-rvm8-5gx5-v3wg, UBUNTU-CVE-2023-39741.