CVE-2021-25804 Null dereference in n/a

High 7.5 Published 26 Jul 2021 Updated 3 Aug 2024

A NULL-pointer dereference in VLC Media Player allows attackers to cause a denial of service via a crafted AVI file.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: Available

What is CVE-2021-25804?

CVE-2021-25804 is a high-severity vulnerability in Videolan Vlc Media Player, published on 26 Jul 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A NULL-pointer dereference in "Open" in avi.c of VideoLAN VLC Media Player 3.0.11 can a denial of service (DOS) in the application.

Weakness: CWE-476

Which versions are affected by CVE-2021-25804?

It affects 1 product.

Products include Videolan Vlc Media Player.

How do I fix CVE-2021-25804?

Upgrade to a fixed version.

Is CVE-2021-25804 being exploited?

There is no known exploitation of CVE-2021-25804 in the wild and no public exploit code.

Public exploit code: 1 proofs of concept on GitHub.

All Videolan Vlc Media Player vulnerabilities

Sources

Also known as DEBIAN-CVE-2021-25804, GHSA-qpmj-gfg7-c4vm, UBUNTU-CVE-2021-25804.