FFmpeg 4.2.1 libavfilter/vf_bwdif.c config_props 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 labeled as critical has been found in FFmpeg 4.2.1. Affected is the function config_props of the file libavfilter/vf_bwdif.c. Executing a manipulation can lead to buffer overflow. This vulnerability is tracked as CVE-2020-20899. The attack can be launched remotely. No exploit exists. A patch should be applied to remediate this issue.

Detailsinfo

A vulnerability classified as critical was found in FFmpeg 4.2.1 (Multimedia Processing Software). This vulnerability affects the function config_props of the file libavfilter/vf_bwdif.c. The manipulation with an unknown input leads to a buffer overflow vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was disclosed 09/20/2021 as 8261. The advisory is available at trac.ffmpeg.org. This vulnerability was named CVE-2020-20899 since 08/13/2020. Successful exploitation requires user interaction by the victim. Technical details are known, but there is no available exploit.

Applying the patch 8c3166e1c302c3ba80d9742ae46161c0fa8e2606 is able to eliminate this problem. The bugfix is ready for download at git.videolan.org.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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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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: 8c3166e1c302c3ba80d9742ae46161c0fa8e2606

Timelineinfo

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

Sourcesinfo

Product: ffmpeg.org

Advisory: 8261
Status: Confirmed

CVE: CVE-2020-20899 (🔍)
GCVE (CVE): GCVE-0-2020-20899
GCVE (VulDB): GCVE-100-182962

Entryinfo

Created: 09/20/2021 21:55
Updated: 09/29/2021 11:47
Changes: 09/20/2021 21:55 (42), 09/29/2021 11:40 (7), 09/29/2021 11:47 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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