CVE-2018-12458 Integer overflow in n/a

What is CVE-2018-12458?

CVE-2018-12458 is a medium-severity vulnerability in Debian Debian Linux, published on 15 Jun 2018. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

An improper integer type in the mpeg4_encode_gop_header function in libavcodec/mpeg4videoenc.c in FFmpeg 2.8 and 4.0 may trigger an assertion violation while converting a crafted AVI file to MPEG4, leading to a denial of service.

Weakness: CWE-20

Which versions are affected by CVE-2018-12458?

It affects 2 products.

Products include Debian Debian Linux, Ffmpeg Ffmpeg.

How do I fix CVE-2018-12458?

Apply the vendor's patch.

Is CVE-2018-12458 being exploited?

There is no known exploitation of CVE-2018-12458 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-PF68128, DEBIAN-CVE-2018-12458, GHSA-hw72-rqr9-3f2g, UBUNTU-CVE-2018-12458.