Unchecked return value in FFmpeg - CVE-2021-38171

Vulnerability identifier: #VU84801

CSH Severity: High

CVSS v4: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2021-38171

CWE-ID: CWE-252

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to an unchecked return value within the adts_decode_extradata() function in libavformat/adtsenc.c. A remote attacker can trick the victim to open a specially crafted image and execute arbitrary code on the system.

FFmpeg
Gentoo Linux
SUSE CaaS Platform
SUSE Enterprise Storage
SUSE Linux Enterprise High Performance Computing
SUSE Linux Enterprise Server
SUSE Linux Enterprise Server for SAP
SUSE Linux Enterprise Workstation Extension
SUSE Linux Enterprise Module for Desktop Applications
openEuler
Telemetry Dashboard
IBM Watson Machine Learning Accelerator
Liquidware
Citrix Workspace App
Webex App VDI
Cisco Jabber
SUSE Linux Enterprise Module for Packagehub Subpackages
libavutil55-debuginfo
ffmpeg-debuginfo
libavutil55
libavutil-devel
libavresample3-debuginfo
libavresample3
libavresample-devel
libavformat57-debuginfo
libavformat57
libavformat-devel
libavfilter6-debuginfo
libavfilter6
libavfilter-devel
libavdevice57-debuginfo
libavdevice57
libavdevice-devel
libavcodec57-debuginfo
libavcodec57
libavcodec-devel
ffmpeg-debugsource
libpostproc54-32bit
libavcodec57-32bit-debuginfo
libavutil55-32bit-debuginfo
libavutil55-32bit
libavresample3-32bit-debuginfo
libavresample3-32bit
libavformat57-32bit-debuginfo
libavformat57-32bit
libavfilter6-32bit-debuginfo
libavfilter6-32bit
libavdevice57-32bit-debuginfo
libavdevice57-32bit
libpostproc-devel
libavcodec57-32bit
libswscale4-debuginfo
libswscale4
libswscale-devel
libswresample2-debuginfo
libswresample2
libswresample-devel
libpostproc54-debuginfo
libpostproc54
libswscale4-32bit-debuginfo
libswscale4-32bit
libswresample2-32bit-debuginfo
libswresample2-32bit
libpostproc54-32bit-debuginfo
ffmpeg
libavresample3-64bit-debuginfo
libavresample3-64bit
ffmpeg-devel
ffmpeg-libs
libavdevice
Cisco Webex Meetings
VMware Horizon Client

Install updates from vendor's website.

FFmpeg - update to 5.0
Telemetry Dashboard - update to 1.1.0.6 on Thin OS 2405
IBM Watson Machine Learning Accelerator - update to 5.0.3
Liquidware - update to 6.7.0.2.2 on Thin OS 2405
Cisco Jabber - update to 14.3.0.308378.11 on Thin OS 2405
Citrix Workspace App - update to 24.2.0.65.17 on Thin OS 2405
Webex App VDI - update to 44.2.0.28744.1 on Thin OS 2405
Cisco Webex Meetings - update to 44.2.0.76.2 on Thin OS 2405
VMware Horizon Client - update to 2312.1.8.12.1.5 on Thin OS 2405
libavutil55-debuginfo - addressed in versions 3.4.2-4.37.1, 3.4.2-11.11.1
ffmpeg-debuginfo - addressed in versions 3.4.2-4.37.1, 3.4.2-11.11.1
libavutil55 - addressed in versions 3.4.2-4.37.1, 3.4.2-11.11.1
libavutil-devel - addressed in versions 3.4.2-4.37.1, 3.4.2-11.11.1
libavresample3-debuginfo - addressed in versions 3.4.2-4.37.1, 3.4.2-11.11.1
libavresample3 - addressed in versions 3.4.2-4.37.1, 3.4.2-11.11.1
libavresample-devel - addressed in versions 3.4.2-4.37.1, 3.4.2-11.11.1
libavformat57-debuginfo - addressed in versions 3.4.2-4.37.1, 3.4.2-11.11.1
libavformat57 - addressed in versions 3.4.2-4.37.1, 3.4.2-11.11.1
libavformat-devel - addressed in versions 3.4.2-4.37.1, 3.4.2-11.11.1
libavfilter6-debuginfo - addressed in versions 3.4.2-4.37.1, 3.4.2-11.11.1
libavfilter6 - addressed in versions 3.4.2-4.37.1, 3.4.2-11.11.1
libavfilter-devel - update to 3.4.2-4.37.1
libavdevice57-debuginfo - addressed in versions 3.4.2-4.37.1, 3.4.2-11.11.1
libavdevice57 - addressed in versions 3.4.2-4.37.1, 3.4.2-11.11.1
libavdevice-devel - update to 3.4.2-4.37.1
libavcodec57-debuginfo - addressed in versions 3.4.2-4.37.1, 3.4.2-11.11.1
libavcodec57 - addressed in versions 3.4.2-4.37.1, 3.4.2-11.11.1
libavcodec-devel - addressed in versions 3.4.2-4.37.1, 3.4.2-11.11.1
ffmpeg-debugsource - addressed in versions 3.4.2-4.37.1, 3.4.2-11.11.1
libpostproc54-32bit - update to 3.4.2-4.37.1
libavcodec57-32bit-debuginfo - update to 3.4.2-4.37.1
libavutil55-32bit-debuginfo - update to 3.4.2-4.37.1
libavutil55-32bit - update to 3.4.2-4.37.1
libavresample3-32bit-debuginfo - addressed in versions 3.4.2-4.37.1, 3.4.2-11.11.1
libavresample3-32bit - addressed in versions 3.4.2-4.37.1, 3.4.2-11.11.1
libavformat57-32bit-debuginfo - update to 3.4.2-4.37.1
libavformat57-32bit - update to 3.4.2-4.37.1
libavfilter6-32bit-debuginfo - update to 3.4.2-4.37.1
libavfilter6-32bit - update to 3.4.2-4.37.1
libavdevice57-32bit-debuginfo - update to 3.4.2-4.37.1
libavdevice57-32bit - update to 3.4.2-4.37.1
libpostproc-devel - addressed in versions 3.4.2-4.37.1, 3.4.2-11.11.1
libavcodec57-32bit - update to 3.4.2-4.37.1
libswscale4-debuginfo - addressed in versions 3.4.2-4.37.1, 3.4.2-11.11.1
libswscale4 - addressed in versions 3.4.2-4.37.1, 3.4.2-11.11.1
libswscale-devel - addressed in versions 3.4.2-4.37.1, 3.4.2-11.11.1
libswresample2-debuginfo - addressed in versions 3.4.2-4.37.1, 3.4.2-11.11.1
libswresample2 - addressed in versions 3.4.2-4.37.1, 3.4.2-11.11.1
libswresample-devel - addressed in versions 3.4.2-4.37.1, 3.4.2-11.11.1
libpostproc54-debuginfo - addressed in versions 3.4.2-4.37.1, 3.4.2-11.11.1
libpostproc54 - addressed in versions 3.4.2-4.37.1, 3.4.2-11.11.1
libswscale4-32bit-debuginfo - update to 3.4.2-4.37.1
libswscale4-32bit - update to 3.4.2-4.37.1
libswresample2-32bit-debuginfo - update to 3.4.2-4.37.1
libswresample2-32bit - update to 3.4.2-4.37.1
libpostproc54-32bit-debuginfo - update to 3.4.2-4.37.1
ffmpeg - update to 3.4.2-11.11.1
libavresample3-64bit-debuginfo - update to 3.4.2-11.11.1
libavresample3-64bit - update to 3.4.2-11.11.1
ffmpeg - addressed in versions 4.2.4-12, 4.2.4-13
ffmpeg-debuginfo - addressed in versions 4.2.4-12, 4.2.4-13
ffmpeg-debugsource - addressed in versions 4.2.4-12, 4.2.4-13
ffmpeg-devel - addressed in versions 4.2.4-12, 4.2.4-13
ffmpeg-libs - addressed in versions 4.2.4-12, 4.2.4-13
libavdevice - addressed in versions 4.2.4-12, 4.2.4-13

• https://github.com/FFmpeg/FFmpeg/commit/9ffa49496d1aae4cbbb387aac28a9e061a6ab0a6
• https://www.debian.org/security/2021/dsa-4990
• https://www.debian.org/security/2021/dsa-4998
• https://lists.debian.org/debian-lts-announce/2021/11/msg00012.html
• https://patchwork.ffmpeg.org/project/ffmpeg/patch/AS8P193MB12542A86E22F8207EC971930B6F19%40AS8P193MB1254.EURP193.PROD.OUTLOOK.COM/
• https://security.gentoo.org/glsa/202312-14

• Multiple vulnerabilities in FFmpeg
• Gentoo update for FFmpeg
• Multiple vulnerabilities in Dell ThinOS
• openEuler 20.03 LTS SP4 update for ffmpeg
• openEuler 22.03 LTS SP4 update for ffmpeg
• openEuler 22.03 LTS SP1 update for ffmpeg
• openEuler 22.03 LTS SP3 update for ffmpeg
• SUSE update for ffmpeg
• SUSE update for ffmpeg
• Multiple vulnerabilities in IBM Watson Machine Learning Accelerator on Cloud Pak for Data