PT-2019-6456 · FFmpeg+2 · Ffmpeg+2

Published 2019-07-04 · Updated 2021-09-02 · CVE-2020-20448

Positive Technologies (AI Summary)

CVSS v2.0

6.8

Medium

Base vector

AV:N/AC:L/Au:S/C:N/I:N/A:C

Name of the Vulnerable Software and Affected Versions FFmpeg version 4.1.3

Description The issue is related to a lack of division by zero check in the libavcodec/ratecontrol.c component of the FFmpeg multimedia library. This can be exploited by a remote attacker to cause a Denial of Service.

Recommendations For FFmpeg version 4.1.3, consider disabling the libavcodec/ratecontrol.c component as a temporary workaround until a patch is available. Restrict access to the vulnerable component to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

DoS

Divide By Zero

Weakness Enumeration

CWE-369

Related Identifiers

ALT-PU-2019-2328

ALT-PU-2019-3126

BDU:2024-09043

CVE-2020-20448

DSA-4722-1

OPENSUSE-SU-2021:2322-1

OPENSUSE-SU-2021_2322-1

SUSE-SU-2021:2322-1

SUSE-SU-2021:2929-1

Affected Products

Alt Linux

Ffmpeg

Suse

References · 167

• https://bdu.fstec.ru/vul/2021-02001 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-20448 · Security Note
• https://bdu.fstec.ru/vul/2021-05314 · Security Note
• https://bdu.fstec.ru/vul/2021-02002 · Security Note
• https://bdu.fstec.ru/vul/2021-03590 · Security Note
• https://bdu.fstec.ru/vul/2022-00241 · Security Note
• https://bdu.fstec.ru/vul/2021-05187 · Security Note
• https://bdu.fstec.ru/vul/2021-05155 · Security Note
• https://bdu.fstec.ru/vul/2021-03605 · Security Note
• https://osv.dev/vulnerability/CVE-2020-20448 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-20448 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2021:2929-1 · Vendor Advisory
• https://bdu.fstec.ru/vul/2021-05190 · Security Note
• https://trac.ffmpeg.org/ticket/7990 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-20902 · Security Note