PT-2023-30005 · FFmpeg · Ffmpeg

Cole Dilorenzo · Published 2023-10-27 · Updated 2026-02-06 · CVE-2023-46407

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Name of the Vulnerable Software and Affected Versions FFmpeg versions prior to commit bf814

Description The issue is related to an out of bounds read via the dist->alphabet size variable in the read vlc prefix() function.

Recommendations For versions prior to commit bf814, consider applying a patch that fixes the out of bounds read issue in the read vlc prefix() function. As a temporary workaround, consider restricting access to the read vlc prefix() function until a patch is available.

Fix

Out of bounds Read

Weakness Enumeration

CWE-125

Related Identifiers

CLEANSTART-2026-EZ98723

CLEANSTART-2026-PS82605

CLEANSTART-2026-XE32069

CVE-2023-46407

Affected Products

Ffmpeg

References · 138

• https://github.com/FFmpeg/FFmpeg/commit/bf814387f42e9b0dea9d75c03db4723c88e7d962 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2018-7751 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2019-1000016 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2019-9718 · Security Note
• https://patchwork.ffmpeg.org/project/ffmpeg/patch/20231015004924.597746-1-leo.izen%40gmail.com · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2018-12458 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2018-1999010 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2018-13305 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2020-13904 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2018-13302 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2020-35965 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2020-12284 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2018-1999011 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2020-22019 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2019-17542 · Security Note