PT-2019-6243 · FFmpeg+4 · Ffmpeg+4

Publicado 2019-07-07 · Atualizado 2026-02-06 · CVE-2020-20453

Positive Technologies (AI Summary)

CVSS v2.0

6.8

Média

Vetor base

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/aaccoder 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/aaccoder 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.

Exploit

DoS

Divide By Zero

Enumeração de Fraquezas

CWE-369

Identificadores relacionados

ALT-PU-2019-2678

ALT-PU-2021-3508

ALT-PU-2021-3575

BDU:2022-05880

CLEANSTART-2026-EZ98723

CLEANSTART-2026-PS82605

CLEANSTART-2026-XE32069

CVE-2020-20453

DLA-2818-1

DSA-4990-1

DSA-4998-1

MGASA-2021-0495

USN-5167-1

USN-5472-1

Produtos afetados

Alt Linux

Astra Linux

Ffmpeg

Linuxmint

Ubuntu

Referências · 204

• 🔥 https://trac.ffmpeg.org/ticket/8003 · Exploit
• https://github.com/cleanstart-dev/cleanstart-security-advisories/tree/main/advisories/2026/CLEANSTART-2026-PS82605.json · Nota
• https://github.com/cleanstart-dev/cleanstart-security-advisories/tree/main/advisories/2026/CLEANSTART-2026-XE32069.json · Nota
• https://github.com/cleanstart-dev/cleanstart-security-advisories/tree/main/advisories/2026/CLEANSTART-2026-PS82605 · Nota
• https://github.com/cleanstart-dev/cleanstart-security-advisories/tree/main/advisories/2026/CLEANSTART-2026-EZ98723.json · Nota
• https://github.com/cleanstart-dev/cleanstart-security-advisories/tree/main/advisories/2026/CLEANSTART-2026-EZ98723 · Nota
• https://bdu.fstec.ru/vul/2022-05880 · Nota de Segurança
• https://nvd.nist.gov/vuln/detail/CVE-2018-7751 · Nota de Segurança
• https://debian.org/security/2021/dsa-4990 · Aviso do Fabricante
• https://ubuntu.com/security/CVE-2020-22020 · Aviso do Fabricante
• https://osv.dev/vulnerability/CVE-2018-1999010 · Nota
• https://ubuntu.com/security/CVE-2020-20451 · Aviso do Fabricante
• https://lists.debian.org/debian-lts-announce/2021/11/msg00012.html · Nota
• https://ubuntu.com/security/CVE-2020-22021 · Aviso do Fabricante
• https://osv.dev/vulnerability/CVE-2020-24020 · Nota