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AUSCERT External Security Bulletin Redistribution
ESB-2020.2514
USN-4431-1: FFmpeg vulnerabilities
23 July 2020
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AusCERT Security Bulletin Summary
---------------------------------
Product: FFmpeg
Publisher: Ubuntu
Operating System: Ubuntu
Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated
Denial of Service -- Remote/Unauthenticated
Access Confidential Data -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2020-13904 CVE-2020-12284 CVE-2019-17542
CVE-2019-17539 CVE-2019-13390 CVE-2019-13312
CVE-2019-12730 CVE-2019-11338 CVE-2018-15822
Reference: ESB-2019.3153
ESB-2019.1933
Original Bulletin:
https://usn.ubuntu.com/4431-1/
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USN-4431-1: FFmpeg vulnerabilities
22 July 2020
Several security issues were fixed in FFmpeg.
Releases
o Ubuntu 20.04 LTS
o Ubuntu 18.04 LTS
o Ubuntu 16.04 LTS
Packages
o ffmpeg - Tools for transcoding, streaming and playing of multimedia files
Details
It was discovered that FFmpeg incorrectly verified empty audio packets or
HEVC data. An attacker could possibly use this issue to cause a denial of
service via a crafted file. This issue only affected Ubuntu 16.04 LTS, as
it was already fixed in Ubuntu 18.04 LTS. For more information see:
https://usn.ubuntu.com/usn/usn-3967-1
(CVE-2018-15822, CVE-2019-11338)
It was discovered that FFmpeg incorrectly handled sscanf failures. An
attacker could possibly use this issue to cause a denial of service or
other unspecified impact. This issue only affected Ubuntu 16.04 LTS and
Ubuntu 18.04 LTS. (CVE-2019-12730)
It was discovered that FFmpeg incorrectly handled certain WEBM files. An
attacker could possibly use this issue to obtain sensitive data or other
unspecified impact. This issue only affected Ubuntu 20.04 LTS.
(CVE-2019-13312)
It was discovered that FFmpeg incorrectly handled certain AVI files. An
attacker could possibly use this issue to cause a denial of service or
other unspecified impact. This issue only affected Ubuntu 16.04 LTS and
Ubuntu 18.04 LTS. (CVE-2019-13390)
It was discovered that FFmpeg incorrectly handled certain input. An
attacker could possibly use this issue to cause a denial of service or
other unspecified impact. This issue only affected Ubuntu 18.04 LTS.
(CVE-2019-17539)
It was discovered that FFmpeg incorrectly handled certain input during
decoding of VQA files. An attacker could possibly use this issue to
obtain sensitive information or other unspecified impact. This issue
only affected Ubuntu 16.04 LTS and Ubuntu 18.04 LTS. (CVE-2019-17542)
It was discovered that FFmpeg incorrectly handled certain JPEG files. An
attacker could possibly use this issue to obtain sensitive information
or other unspecified impact. This issue only affected Ubuntu 20.04 LTS.
(CVE-2020-12284)
It was discovered that FFmpeg incorrectly handled certain M3U8 files. An
attacker could possibly use this issue to obtain sensitive information
or other unspecified impact. (CVE-2020-13904)
Update instructions
The problem can be corrected by updating your system to the following package
versions:
Ubuntu 20.04
o ffmpeg - 7:4.2.4-1ubuntu0.1
o libavcodec-extra58 - 7:4.2.4-1ubuntu0.1
o libavcodec58 - 7:4.2.4-1ubuntu0.1
o libavdevice58 - 7:4.2.4-1ubuntu0.1
o libavfilter-extra7 - 7:4.2.4-1ubuntu0.1
o libavfilter7 - 7:4.2.4-1ubuntu0.1
o libavformat58 - 7:4.2.4-1ubuntu0.1
o libavresample4 - 7:4.2.4-1ubuntu0.1
o libavutil56 - 7:4.2.4-1ubuntu0.1
o libpostproc55 - 7:4.2.4-1ubuntu0.1
o libswresample3 - 7:4.2.4-1ubuntu0.1
o libswscale5 - 7:4.2.4-1ubuntu0.1
Ubuntu 18.04
o ffmpeg - 7:3.4.8-0ubuntu0.2
o libavcodec-extra57 - 7:3.4.8-0ubuntu0.2
o libavcodec57 - 7:3.4.8-0ubuntu0.2
o libavdevice57 - 7:3.4.8-0ubuntu0.2
o libavfilter-extra6 - 7:3.4.8-0ubuntu0.2
o libavfilter6 - 7:3.4.8-0ubuntu0.2
o libavformat57 - 7:3.4.8-0ubuntu0.2
o libavresample3 - 7:3.4.8-0ubuntu0.2
o libavutil55 - 7:3.4.8-0ubuntu0.2
o libpostproc54 - 7:3.4.8-0ubuntu0.2
o libswresample2 - 7:3.4.8-0ubuntu0.2
o libswscale4 - 7:3.4.8-0ubuntu0.2
Ubuntu 16.04
o ffmpeg - 7:2.8.17-0ubuntu0.1
o libavcodec-ffmpeg-extra56 - 7:2.8.17-0ubuntu0.1
o libavcodec-ffmpeg56 - 7:2.8.17-0ubuntu0.1
o libavdevice-ffmpeg56 - 7:2.8.17-0ubuntu0.1
o libavfilter-ffmpeg5 - 7:2.8.17-0ubuntu0.1
o libavformat-ffmpeg56 - 7:2.8.17-0ubuntu0.1
o libavresample-ffmpeg2 - 7:2.8.17-0ubuntu0.1
o libavutil-ffmpeg54 - 7:2.8.17-0ubuntu0.1
o libpostproc-ffmpeg53 - 7:2.8.17-0ubuntu0.1
o libswresample-ffmpeg1 - 7:2.8.17-0ubuntu0.1
o libswscale-ffmpeg3 - 7:2.8.17-0ubuntu0.1
In general, a standard system update will make all the necessary changes.
References
o CVE-2018-15822
o CVE-2019-11338
o CVE-2019-12730
o CVE-2019-13312
o CVE-2019-13390
o CVE-2019-17539
o CVE-2019-17542
o CVE-2020-12284
o CVE-2020-13904
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