CVE-2021-38114 Null dereference in n/a

What is CVE-2021-38114?

CVE-2021-38114 is a medium-severity vulnerability in Debian Debian Linux, published on 4 Aug 2021. 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

libavcodec/dnxhddec.c in FFmpeg 4.4 does not check the return value of the init_vlc function, a similar issue to CVE-2013-0868.

Weakness: CWE-252

Which versions are affected by CVE-2021-38114?

It affects 2 products.

Products include Debian Debian Linux, Ffmpeg Ffmpeg.

How do I fix CVE-2021-38114?

Apply the vendor's patch.

Is CVE-2021-38114 being exploited?

There is no known exploitation of CVE-2021-38114 in the wild and no public exploit code.

Other vulnerabilities in Debian Debian Linux

• CVE-2015-3306 ProFTPD Improper Access Control Exploited Critical 10.0
• CVE-2025-49113 RoundCube Webmail Deserialization of Untrusted Data Exploited Critical 9.9
• CVE-2026-24061 GNU InetUtils Argument Injection Exploited Critical 9.8
• CVE-2025-39682 Linux Kernel Improper Check for Unusual or Exceptional Conditions Exploited Critical 9.8
• CVE-2024-9680 Mozilla Firefox Use-After-Free Exploited Critical 9.8

All Debian Debian Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as CLEANSTART-2024-LR52938, DEBIAN-CVE-2021-38114, GHSA-97g5-wwgm-hp9g, JLSEC-2025-115, UBUNTU-CVE-2021-38114.