PT-2020-5906 · FFmpeg+4 · Ffmpeg+4
Published
2020-06-07
·
Updated
2026-02-06
·
CVE-2020-13904
CVSS v3.1
9.8
Critical
| Vector | AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions:
FFmpeg versions 2.8 through 4.2.3
Description:
The issue is related to a use-after-free error in the
parse playlist function of the libavformat library, specifically when handling a crafted EXTINF duration in an m3u8 file. This error occurs because the parse playlist function in libavformat/hls.c frees a pointer, which is later accessed in av probe input format3 in libavformat/format.c. The exploitation of this issue may allow a remote attacker to cause a denial of service.Recommendations:
For FFmpeg version 2.8, update to a version where this issue is fixed.
For FFmpeg version 4.2.3, update to a version where this issue is fixed.
As a temporary workaround, consider restricting the use of m3u8 files with crafted EXTINF durations until a patch is available.
Exploit
Fix
Use After Free
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Weakness Enumeration
Related Identifiers
Affected Products
Alt Linux
Ffmpeg
Linuxmint
Suse
Ubuntu