CVE-2020-20451 : Denial of Service issue in FFmpeg 4.2 due to resource management errors via ffto

Denial of Service issue in FFmpeg 4.2 due to resource management errors via fftools/cmdutils.c.

Published 2021-05-25 19:15:08

Updated 2021-11-30 21:59:12

Source MITRE

View at NVD, CVE.org

Vulnerability category: Denial of service

Products affected by CVE-2020-20451

Debian » Debian Linux » Version: 9.0
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
Matching versions
Ffmpeg » Ffmpeg » Version: 4.2
cpe:2.3:a:ffmpeg:ffmpeg:4.2:-:*:*:*:*:*:*
Matching versions

EPSS FAQ

0.15%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 51 %

Percentile, the proportion of vulnerabilities that are scored at or less

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
5.0	MEDIUM	AV:N/AC:L/Au:N/C:N/I:N/A:P	10.0	2.9	NIST
Access Vector: Network Access Complexity: Low Authentication: None Confidentiality Impact: None Integrity Impact: None Availability Impact: Partial
7.5	HIGH	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	3.9	3.6	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: None Integrity: None Availability: High

CWE-401 Missing Release of Memory after Effective Lifetime

The product does not sufficiently track and release allocated memory after it has been used, which slowly consumes remaining memory.

Assigned by: nvd@nist.gov (Primary)

https://trac.ffmpeg.org/ticket/8094

#8094 (Memory leaks from realloc) – FFmpeg
Exploit;Patch;Vendor Advisory
https://lists.debian.org/debian-lts-announce/2021/11/msg00012.html

[SECURITY] [DLA 2818-1] ffmpeg security update
Mailing List;Third Party Advisory

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