PT-2019-6239 · FFmpeg+4 · Ffmpeg+4
CVE-2020-22044
·
Published
2019-09-11
·
Updated
2025-07-11
CVSS v3.1
8.8
High
| Vector | AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions
FFmpeg version 4.2
Description
A Denial of Service issue exists due to a memory leak in the
url open dyn buf internal function in libavformat/aviobuf.c. This allows a remote attacker to cause a denial of service. The vulnerability is related to incorrect memory deallocation before removing the last reference.Recommendations
For FFmpeg version 4.2, as a temporary workaround, consider disabling the
url open dyn buf internal function until a patch is available. However, at the moment, there is no information about a newer version that contains a fix for this vulnerability.Exploit
DoS
Memory Leak
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Weakness Enumeration
Related Identifiers
Affected Products
Alt Linux
Astra Linux
Ffmpeg
Suse
Ubuntu