NULL pointer dereference in FFmpeg - CVE-2020-20896

Vulnerability identifier: #VU70604

CSH Severity: Medium

CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2020-20896

CWE-ID: CWE-476

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dereference error in the latm_write_packet() function in libavformat/latmenc.c in FFmpeg. A remote attacker can perform a denial of service (DoS) attack.

FFmpeg
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
SUSE Linux Enterprise Module for Packagehub Subpackages
ffmpeg
libavformat57-debuginfo
libavformat57
libavcodec57-debuginfo
libavcodec57
libavfilter6-debuginfo
libavfilter6
libavdevice57-debuginfo
libavdevice57
libavresample3-32bit-debuginfo
libavresample3-debuginfo
libavresample3
libavresample-devel
libavformat-devel
libavcodec-devel
ffmpeg-debugsource
ffmpeg-debuginfo
libavutil55
libavresample3-32bit
libavresample3-64bit-debuginfo
libavresample3-64bit
libswscale4-debuginfo
libswscale4
libswscale-devel
libswresample2-debuginfo
libswresample2
libswresample-devel
libpostproc54-debuginfo
libpostproc54
libpostproc-devel
libavutil55-debuginfo
libavutil-devel
libavutil55-32bit
libswscale4-32bit-debuginfo
libswscale4-32bit
libswresample2-32bit-debuginfo
libswresample2-32bit
libpostproc54-32bit-debuginfo
libpostproc54-32bit
libavutil55-32bit-debuginfo
libavfilter-devel
libavdevice-devel
libavcodec57-32bit
libavformat57-32bit-debuginfo
libavformat57-32bit
libavfilter6-32bit-debuginfo
libavfilter6-32bit
libavdevice57-32bit-debuginfo
libavdevice57-32bit
libavcodec57-32bit-debuginfo

Install update from vendor's website.

FFmpeg - update to 4.2.2
ffmpeg - update to 3.4.2-11.17.1
libavformat57-debuginfo - addressed in versions 3.4.2-11.17.1, 3.4.2-150000.4.44.1
libavformat57 - addressed in versions 3.4.2-11.17.1, 3.4.2-150000.4.44.1
libavcodec57-debuginfo - addressed in versions 3.4.2-11.17.1, 3.4.2-150000.4.44.1
libavcodec57 - addressed in versions 3.4.2-11.17.1, 3.4.2-150000.4.44.1
libavfilter6-debuginfo - addressed in versions 3.4.2-11.17.1, 3.4.2-150000.4.44.1
libavfilter6 - addressed in versions 3.4.2-11.17.1, 3.4.2-150000.4.44.1
libavdevice57-debuginfo - addressed in versions 3.4.2-11.17.1, 3.4.2-150000.4.44.1
libavdevice57 - addressed in versions 3.4.2-11.17.1, 3.4.2-150000.4.44.1
libavresample3-32bit-debuginfo - addressed in versions 3.4.2-11.17.1, 3.4.2-150000.4.44.1
libavresample3-debuginfo - addressed in versions 3.4.2-11.17.1, 3.4.2-150000.4.44.1
libavresample3 - addressed in versions 3.4.2-11.17.1, 3.4.2-150000.4.44.1
libavresample-devel - addressed in versions 3.4.2-11.17.1, 3.4.2-150000.4.44.1
libavformat-devel - addressed in versions 3.4.2-11.17.1, 3.4.2-150000.4.44.1
libavcodec-devel - addressed in versions 3.4.2-11.17.1, 3.4.2-150000.4.44.1
ffmpeg-debugsource - addressed in versions 3.4.2-11.17.1, 3.4.2-150000.4.44.1
ffmpeg-debuginfo - addressed in versions 3.4.2-11.17.1, 3.4.2-150000.4.44.1
libavutil55 - addressed in versions 3.4.2-11.17.1, 3.4.2-150000.4.44.1
libavresample3-32bit - addressed in versions 3.4.2-11.17.1, 3.4.2-150000.4.44.1
libavresample3-64bit-debuginfo - update to 3.4.2-11.17.1
libavresample3-64bit - update to 3.4.2-11.17.1
libswscale4-debuginfo - addressed in versions 3.4.2-11.17.1, 3.4.2-150000.4.44.1
libswscale4 - addressed in versions 3.4.2-11.17.1, 3.4.2-150000.4.44.1
libswscale-devel - addressed in versions 3.4.2-11.17.1, 3.4.2-150000.4.44.1
libswresample2-debuginfo - addressed in versions 3.4.2-11.17.1, 3.4.2-150000.4.44.1
libswresample2 - addressed in versions 3.4.2-11.17.1, 3.4.2-150000.4.44.1
libswresample-devel - addressed in versions 3.4.2-11.17.1, 3.4.2-150000.4.44.1
libpostproc54-debuginfo - addressed in versions 3.4.2-11.17.1, 3.4.2-150000.4.44.1
libpostproc54 - addressed in versions 3.4.2-11.17.1, 3.4.2-150000.4.44.1
libpostproc-devel - addressed in versions 3.4.2-11.17.1, 3.4.2-150000.4.44.1
libavutil55-debuginfo - addressed in versions 3.4.2-11.17.1, 3.4.2-150000.4.44.1
libavutil-devel - addressed in versions 3.4.2-11.17.1, 3.4.2-150000.4.44.1
libavutil55-32bit - update to 3.4.2-150000.4.44.1
libswscale4-32bit-debuginfo - update to 3.4.2-150000.4.44.1
libswscale4-32bit - update to 3.4.2-150000.4.44.1
libswresample2-32bit-debuginfo - update to 3.4.2-150000.4.44.1
libswresample2-32bit - update to 3.4.2-150000.4.44.1
libpostproc54-32bit-debuginfo - update to 3.4.2-150000.4.44.1
libpostproc54-32bit - update to 3.4.2-150000.4.44.1
libavutil55-32bit-debuginfo - update to 3.4.2-150000.4.44.1
libavfilter-devel - update to 3.4.2-150000.4.44.1
libavdevice-devel - update to 3.4.2-150000.4.44.1
libavcodec57-32bit - update to 3.4.2-150000.4.44.1
libavformat57-32bit-debuginfo - update to 3.4.2-150000.4.44.1
libavformat57-32bit - update to 3.4.2-150000.4.44.1
libavfilter6-32bit-debuginfo - update to 3.4.2-150000.4.44.1
libavfilter6-32bit - update to 3.4.2-150000.4.44.1
libavdevice57-32bit-debuginfo - update to 3.4.2-150000.4.44.1
libavdevice57-32bit - update to 3.4.2-150000.4.44.1
libavcodec57-32bit-debuginfo - update to 3.4.2-150000.4.44.1

• https://trac.ffmpeg.org/ticket/8273
• https://git.ffmpeg.org/gitweb/ffmpeg.git/commit/dd01947397b98e94c3f2a79d5820aaf4594f4d3b

• Multiple vulnerabilities in FFmpeg
• SUSE update for ffmpeg
• SUSE update for ffmpeg