Medium severity · published May 25, 2021
CVE-2020-20446
FFmpeg 4.2 is affected by a Divide By Zero issue via libavcodec/aacpsy.c, which allows a remote malicious user to cause a Denial of Service
6.5
CVSS
1.7%
EPSS
No
On KEV
Description
FFmpeg 4.2 is affected by a Divide By Zero issue via libavcodec/aacpsy.c, which allows a remote malicious user to cause a Denial of Service.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.7% · higher than 77% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DL
Debian Linux · Debian
9.0; 10.0; 11.0 · source: NVD
FF
Ffmpeg · Ffmpeg
4.2 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-20446
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-20446
Mailing List
https://lists.debian.org/debian-lts-announce/2021/11/msg00012.html
Exploit
https://trac.ffmpeg.org/ticket/7995
Third Party Advisory
https://www.debian.org/security/2021/dsa-4990
Third Party Advisory
https://www.debian.org/security/2021/dsa-4998
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