FFmpeg 4.2.1 libavfilter/vf_bm3d.c filter_slice 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

Summaryinfo

A vulnerability categorized as critical has been discovered in FFmpeg 4.2.1. This affects the function filter_slice of the file libavfilter/vf_bm3d.c. Such manipulation leads to buffer overflow. This vulnerability is referenced as CVE-2020-20897. It is possible to launch the attack remotely. No exploit is available. Applying a patch is advised to resolve this issue.

Detailsinfo

A vulnerability was found in FFmpeg 4.2.1 (Multimedia Processing Software). It has been rated as critical. Affected by this issue is the function filter_slice 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 published 09/20/2021 as 8262. The advisory is shared for download at trac.ffmpeg.org. This vulnerability is handled as CVE-2020-20897 since 08/13/2020. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available.

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

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

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

AVACAuCIA
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💳💳💳💳💳💳
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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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: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined
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

08/13/2020 🔍
09/20/2021 +403 days 🔍
09/20/2021 +0 days 🔍
09/29/2021 +9 days 🔍

Sourcesinfo

Product: ffmpeg.org

Advisory: 8262
Status: Confirmed

CVE: CVE-2020-20897 (🔍)
GCVE (CVE): GCVE-0-2020-20897
GCVE (VulDB): GCVE-100-182960

Entryinfo

Created: 09/20/2021 21:54
Updated: 09/29/2021 11:17
Changes: 09/20/2021 21:54 (42), 09/29/2021 11:09 (7), 09/29/2021 11:17 (1)
Complete: 🔍
Cache ID: 216::103

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