FFmpeg 4.2.1 libavfilter/vf_bm3d.c config_input buffer overflow

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.0$0-$5k0.00

A vulnerability was found in FFmpeg 4.2.1 (Multimedia Processing Software) and classified as critical. Affected by this issue is the function config_input of the file libavfilter/vf_bm3d.c. The manipulation with an unknown input leads to a buffer overflow vulnerability. Using CWE to declare the problem leads to CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. Impacted is confidentiality, integrity, and availability.

The weakness was released 09/20/2021 as 8262. The advisory is available at trac.ffmpeg.org. This vulnerability is handled as CVE-2021-38089 since 08/04/2021. Successful exploitation requires user interaction by the victim. Technical details are known, but there is no available exploit.

Applying the patch 0749082eb93ea02fa4b770da86597450cec84054 is able to eliminate this problem. The bugfix is ready for download at git.ffmpeg.org.

Entries connected to this vulnerability are available at VDB-176142 and VDB-182960.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.0

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Buffer overflow
CWE: CWE-120 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: 0749082eb93ea02fa4b770da86597450cec84054

Timelineinfo

08/04/2021 🔍
09/20/2021 +47 days 🔍
09/20/2021 +0 days 🔍
09/29/2021 +9 days 🔍

Sourcesinfo

Product: ffmpeg.org

Advisory: 8262
Status: Confirmed

CVE: CVE-2021-38089 (🔍)
See also: 🔍

Entryinfo

Created: 09/20/2021 21:57
Updated: 09/29/2021 12:47
Changes: 09/20/2021 21:57 (42), 09/29/2021 12:40 (7), 09/29/2021 12:47 (1)
Complete: 🔍
Cache ID: 3:60C:103

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