CVE-2020-21688

A heap-use-after-free in the av_freep function in libavutil/mem.c of FFmpeg 4.2 allows attackers to execute arbitrary code.

CVSS v3 8.8 HIGH
CVSS v2.0 6.8 MEDIUM

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

6.8^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:M/Au:N/C:P/I:P/A:P

Exploitability : 8.6 / Impact : 6.4

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://trac.ffmpeg.org/ticket/8186	Exploit Issue Tracking Patch Vendor Advisory
https://www.debian.org/security/2021/dsa-4998	Third Party Advisory
https://trac.ffmpeg.org/ticket/8186	Exploit Issue Tracking Patch Vendor Advisory
https://www.debian.org/security/2021/dsa-4998	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:ffmpeg:ffmpeg:4.2:-:*:*:*:*:*:*

Configuration 2 (hide)

cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*

History

21 Nov 2024, 05:12

Type	Values Removed	Values Added
References	~~() https://trac.ffmpeg.org/ticket/8186 - Exploit, Issue Tracking, Patch, Vendor Advisory~~	() https://trac.ffmpeg.org/ticket/8186 - Exploit, Issue Tracking, Patch, Vendor Advisory
References	~~() https://www.debian.org/security/2021/dsa-4998 - Third Party Advisory~~	() https://www.debian.org/security/2021/dsa-4998 - Third Party Advisory

Information

Published : 2021-08-10 21:15

Updated : 2024-11-21 05:12

NVD link : CVE-2020-21688

Mitre link : CVE-2020-21688

CVE.ORG link : CVE-2020-21688

JSON object : View

Products Affected

debian

debian_linux

ffmpeg

ffmpeg

CWE

CWE-416

Use After Free

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