PT-2019-6256 · FFmpeg+4 · Ffmpeg+4

Published 2019-07-04 · Updated 2022-06-13 · CVE-2020-20445

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 4.2

Description The issue is related to a Divide By Zero problem in the libavcodec/lpc.h component of the FFmpeg multimedia library. This allows a remote attacker to cause a Denial of Service.

Recommendations For FFmpeg version 4.2, consider disabling the libavcodec/lpc.h component as a temporary workaround until a patch is available. Restrict access to the vulnerable component to minimize the risk of exploitation.

Exploit

Fix

DoS

Divide By Zero

Weakness Enumeration

CWE-369

Related Identifiers

ALT-PU-2019-2678

BDU:2022-05964

CVE-2020-20445

DLA-2818-1

DSA-4990-1

DSA-4998-1

USN-5167-1

USN-5472-1

Affected Products

Alt Linux

Astra Linux

Ffmpeg

Linuxmint

Ubuntu

References · 223

• 🔥 https://trac.ffmpeg.org/ticket/7996 · Exploit
• https://wiki.astralinux.ru/pages/viewpage.action?pageId=153487325 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-22037 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3566 · Security Note
• https://ubuntu.com/security/CVE-2021-38114 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-22042 · Security Note
• https://bdu.fstec.ru/vul/2021-05314 · Security Note
• https://bdu.fstec.ru/vul/2022-00243 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-21041 · Security Note
• https://bdu.fstec.ru/vul/2021-05187 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-22022 · Security Note
• https://bdu.fstec.ru/vul/2022-01801 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-20445 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-22039 · Security Note
• https://cve.org/CVERecord?id=CVE-2020-20445 · Security Note