FFmpeg 4.2.1 libavformat/latmenc.c latm_write_packet null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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6.1$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, was found in FFmpeg 4.2.1. This affects the function latm_write_packet of the file libavformat/latmenc.c. Such manipulation leads to null pointer dereference. This vulnerability is traded as CVE-2020-20896. There is no exploit available. A patch should be applied to remediate this issue.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in FFmpeg 4.2.1 (Multimedia Processing Software). Affected by this issue is the function latm_write_packet of the file libavformat/latmenc.c. The manipulation with an unknown input leads to a null pointer dereference vulnerability. Using CWE to declare the problem leads to CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. Impacted is availability.

The weakness was shared 09/20/2021 as dd01947397b98e94c3f2a79d5820aaf4594f4d3b. The advisory is available at trac.ffmpeg.org. This vulnerability is handled as CVE-2020-20896 since 08/13/2020. Technical details are known, but there is no available exploit.

Applying the patch dd01947397b98e94c3f2a79d5820aaf4594f4d3b is able to eliminate this problem. The bugfix is ready for download at git.ffmpeg.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: 6.1
VulDB Meta Temp Score: 6.1

VulDB Base Score: 3.5
VulDB Temp Score: 3.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
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: dd01947397b98e94c3f2a79d5820aaf4594f4d3b

Timelineinfo

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

Sourcesinfo

Product: ffmpeg.org

Advisory: dd01947397b98e94c3f2a79d5820aaf4594f4d3b
Status: Confirmed

CVE: CVE-2020-20896 (🔍)
GCVE (CVE): GCVE-0-2020-20896
GCVE (VulDB): GCVE-100-182954

Entryinfo

Created: 09/20/2021 21:20
Updated: 09/29/2021 10:05
Changes: 09/20/2021 21:20 (42), 09/29/2021 10:03 (1), 09/29/2021 10:05 (18)
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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