Bug 1190735 (CVE-2021-38094) - VUL-0: CVE-2021-38094: ffmpeg: Integer Overflow vulnerability in function filter_sobel in libavfilter/vf_convolution.c
Summary: VUL-0: CVE-2021-38094: ffmpeg: Integer Overflow vulnerability in function fil...
Status: RESOLVED FIXED
Alias: CVE-2021-38094
Product: SUSE Security Incidents
Classification: Novell Products
Component: Incidents (show other bugs)
Version: unspecified
Hardware: Other Other
: P3 - Medium : Normal
Target Milestone: ---
Assignee: Security Team bot
QA Contact: Security Team bot
URL: https://smash.suse.de/issue/310526/
Whiteboard: CVSSv3.1:SUSE:CVE-2021-38094:6.5:(AV:...
Keywords:
Depends on:
Blocks:
 
Reported: 2021-09-21 14:02 UTC by Alexander Bergmann
Modified: 2023-01-02 14:23 UTC (History)
4 users (show)

See Also:
Found By: Security Response Team
Services Priority:
Business Priority:
Blocker: ---
Marketing QA Status: ---
IT Deployment: ---


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Description Alexander Bergmann 2021-09-21 14:02:27 UTC
CVE-2021-38094

Integer Overflow vulnerability in function filter_sobel in
libavfilter/vf_convolution.c in Ffmpeg 4.2.1, allows attackers to cause a Denial
of Service or other unspecified impacts.

References:
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2021-38094
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-38094
https://git.ffmpeg.org/gitweb/ffmpeg.git/commit/99f8d32129dd233d4eb2efa44678a0bc44869f23
https://trac.ffmpeg.org/ticket/8263
Comment 1 Alexander Bergmann 2021-09-22 09:20:20 UTC
The 'suma' and 'sumb' calculation looks a bit different on 3.4.2.

The interface of filter16_prewitt changed as well, so it is bit unclear if our version is really affected.

From the general point of view, the used integer could have exactly the same problem as upstream and we should consider to move to float here.
Comment 4 Swamp Workflow Management 2021-10-26 19:26:43 UTC
SUSE-SU-2021:3521-1: An update that fixes 12 vulnerabilities is now available.

Category: security (moderate)
Bug References: 1186756,1187852,1189166,1190718,1190719,1190722,1190723,1190726,1190729,1190733,1190734,1190735
CVE References: CVE-2020-20891,CVE-2020-20892,CVE-2020-20895,CVE-2020-20896,CVE-2020-20899,CVE-2020-20902,CVE-2020-22037,CVE-2020-35965,CVE-2021-3566,CVE-2021-38092,CVE-2021-38093,CVE-2021-38094
JIRA References: 
Sources used:
SUSE Linux Enterprise Workstation Extension 15-SP3 (src):    ffmpeg-3.4.2-11.17.1
SUSE Linux Enterprise Workstation Extension 15-SP2 (src):    ffmpeg-3.4.2-11.17.1
SUSE Linux Enterprise Module for Packagehub Subpackages 15-SP3 (src):    ffmpeg-3.4.2-11.17.1
SUSE Linux Enterprise Module for Packagehub Subpackages 15-SP2 (src):    ffmpeg-3.4.2-11.17.1
SUSE Linux Enterprise Module for Desktop Applications 15-SP3 (src):    ffmpeg-3.4.2-11.17.1
SUSE Linux Enterprise Module for Desktop Applications 15-SP2 (src):    ffmpeg-3.4.2-11.17.1

NOTE: This line indicates an update has been released for the listed product(s). At times this might be only a partial fix. If you have questions please reach out to maintenance coordination.
Comment 5 Swamp Workflow Management 2021-10-26 19:34:55 UTC
openSUSE-SU-2021:3521-1: An update that fixes 12 vulnerabilities is now available.

Category: security (moderate)
Bug References: 1186756,1187852,1189166,1190718,1190719,1190722,1190723,1190726,1190729,1190733,1190734,1190735
CVE References: CVE-2020-20891,CVE-2020-20892,CVE-2020-20895,CVE-2020-20896,CVE-2020-20899,CVE-2020-20902,CVE-2020-22037,CVE-2020-35965,CVE-2021-3566,CVE-2021-38092,CVE-2021-38093,CVE-2021-38094
JIRA References: 
Sources used:
openSUSE Leap 15.3 (src):    ffmpeg-3.4.2-11.17.1
Comment 7 Gabriele Sonnu 2022-04-29 08:03:36 UTC
Done.
Comment 9 Swamp Workflow Management 2023-01-02 14:23:48 UTC
SUSE-SU-2023:0005-1: An update that fixes 14 vulnerabilities is now available.

Category: security (important)
Bug References: 1186756,1186761,1187852,1189166,1190718,1190719,1190722,1190723,1190726,1190729,1190733,1190734,1190735,1206442
CVE References: CVE-2020-20891,CVE-2020-20892,CVE-2020-20895,CVE-2020-20896,CVE-2020-20899,CVE-2020-20902,CVE-2020-22037,CVE-2020-22042,CVE-2020-35965,CVE-2021-3566,CVE-2021-38092,CVE-2021-38093,CVE-2021-38094,CVE-2022-3109
JIRA References: 
Sources used:
SUSE Linux Enterprise Server for SAP 15-SP1 (src):    ffmpeg-3.4.2-150000.4.44.1
SUSE Linux Enterprise Server for SAP 15 (src):    ffmpeg-3.4.2-150000.4.44.1
SUSE Linux Enterprise Server 15-SP1-LTSS (src):    ffmpeg-3.4.2-150000.4.44.1
SUSE Linux Enterprise Server 15-SP1-BCL (src):    ffmpeg-3.4.2-150000.4.44.1
SUSE Linux Enterprise Server 15-LTSS (src):    ffmpeg-3.4.2-150000.4.44.1
SUSE Linux Enterprise High Performance Computing 15-SP1-LTSS (src):    ffmpeg-3.4.2-150000.4.44.1
SUSE Linux Enterprise High Performance Computing 15-SP1-ESPOS (src):    ffmpeg-3.4.2-150000.4.44.1
SUSE Linux Enterprise High Performance Computing 15-LTSS (src):    ffmpeg-3.4.2-150000.4.44.1
SUSE Linux Enterprise High Performance Computing 15-ESPOS (src):    ffmpeg-3.4.2-150000.4.44.1
SUSE Enterprise Storage 6 (src):    ffmpeg-3.4.2-150000.4.44.1
SUSE CaaS Platform 4.0 (src):    ffmpeg-3.4.2-150000.4.44.1

NOTE: This line indicates an update has been released for the listed product(s). At times this might be only a partial fix. If you have questions please reach out to maintenance coordination.