Vulnerability Name:

CVE-2021-30123 (CCN-199636)

Assigned:2020-08-19
Published:2020-08-19
Updated:2021-09-29
Summary:FFmpeg <=4.3 contains a buffer overflow vulnerability in libavcodec through a crafted file that may lead to remote code execution.
CVSS v3 Severity:8.8 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)
7.7 High (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
7.8 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)
6.8 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
CVSS v2 Severity:6.8 Medium (CVSS v2 Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial
6.8 Medium (CCN CVSS v2 Vector: AV:L/AC:L/Au:S/C:C/I:C/A:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete
Vulnerability Type:CWE-120
Vulnerability Consequences:Gain Access
References:Source: MITRE
Type: CNA
CVE-2021-30123

Source: CCN
Type: ffmpeg GIT Repository
avcodec/aacdec_template: add more checks to make sure only 22.2 gets to 22.2

Source: MISC
Type: Patch, Third Party Advisory
http://git.videolan.org/?p=ffmpeg.git;a=commitdiff;h=d6f293353c94c7ce200f6e0975ae3de49787f91f

Source: XF
Type: UNKNOWN
ffmpeg-cve202130123-bo(199636)

Source: GENTOO
Type: Third Party Advisory
GLSA-202105-24

Source: MISC
Type: Exploit, Vendor Advisory
https://trac.ffmpeg.org/ticket/8845

Source: MISC
Type: Exploit, Vendor Advisory
https://trac.ffmpeg.org/ticket/8863

Vulnerable Configuration:Configuration 1:
  • cpe:/a:ffmpeg:ffmpeg:4.4:*:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/a:ffmpeg:ffmpeg:4.3:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    ffmpeg ffmpeg 4.4
    ffmpeg ffmpeg 4.3