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cnvdChina National Vulnerability DatabaseCNVD-2021-79770
HistoryAug 05, 2021 - 12:00 a.m.

Ffmpeg out-of-bounds read/write vulnerability

2021-08-0500:00:00
China National Vulnerability Database
www.cnvd.org.cn
13

5.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

4.3 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

FFmpeg is a complete solution for recording, converting, and streaming audio and video from the FFmpeg team. ffmpeg has an out-of-bounds read/write vulnerability in version 4.4 summary, which originates from FFmpeg’s libavcodec dnxhddec.c not checking the return value of the init vlc function, which can be exploited by attackers to cause an out-of-bounds read/write vulnerability.

CPENameOperatorVersion
ffmpeg ffmpegeq4.4

5.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

4.3 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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