Bug 1190727 (CVE-2020-20900) - VUL-0: CVE-2020-20900: ffmpeg: Buffer Overflow vulnerability in function gaussian_blur in libavfilter/vf_edgedetect.c
Summary: VUL-0: CVE-2020-20900: ffmpeg: Buffer Overflow vulnerability in function gaus...
Status: RESOLVED FIXED
Alias: CVE-2020-20900
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/310561/
Whiteboard: CVSSv3.1:SUSE:CVE-2020-20900:6.5:(AV:...
Keywords:
Depends on:
Blocks:
 
Reported: 2021-09-21 14:01 UTC by Alexander Bergmann
Modified: 2024-08-08 11:40 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 14:01:50 UTC
CVE-2020-20900

Buffer Overflow vulnerability in function gaussian_blur in
libavfilter/vf_edgedetect.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-2020-20900
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-20900
https://trac.ffmpeg.org/ticket/8275
https://git.ffmpeg.org/gitweb/ffmpeg.git/commit/de598f82f8c3f8000e1948548e8088148e2b1f44
Comment 1 Alexander Bergmann 2021-09-22 10:18:14 UTC
ffmpeg-CVE-2020-22032.patch fixes that issue already.

So it looks like CVE-2020-22032 / bsc#1186614 has the wrong git commit in our package. We should fix the patch name and changes entry and have another look at CVE-2020-22032.
Comment 2 Alynx Zhou 2021-10-13 07:16:57 UTC
(In reply to Alexander Bergmann from comment #1)
> ffmpeg-CVE-2020-22032.patch fixes that issue already.
> 
> So it looks like CVE-2020-22032 / bsc#1186614 has the wrong git commit in
> our package. We should fix the patch name and changes entry and have another
> look at CVE-2020-22032.

Those two bugs contain the same ticket number (#8275), and de598f82f8c3f8000e1948548e8088148e2b1f44 's commit message says it fixes #8275, so I backported it in ffmpeg-CVE-2020-22032.patch.

Those two bugs seem to share the same patch.
Comment 6 Alynx Zhou 2024-04-29 10:41:30 UTC
The change log has been updated and merged, it should have reference to this bug now.
Comment 7 Maintenance Automation 2024-04-29 20:30:06 UTC
SUSE-SU-2024:1468-1: An update that solves nine vulnerabilities can now be installed.

Category: security (important)
Bug References: 1190721, 1190724, 1190727, 1190728, 1190731, 1190732, 1223070, 1223235
CVE References: CVE-2020-20894, CVE-2020-20898, CVE-2020-20900, CVE-2020-20901, CVE-2021-38090, CVE-2021-38091, CVE-2021-38094, CVE-2023-49502, CVE-2024-31578
Maintenance Incident: [SUSE:Maintenance:32836](https://smelt.suse.de/incident/32836/)
Sources used:
openSUSE Leap 15.5 (src):
 ffmpeg-3.4.2-150200.11.41.1
Desktop Applications Module 15-SP5 (src):
 ffmpeg-3.4.2-150200.11.41.1
SUSE Package Hub 15 15-SP5 (src):
 ffmpeg-3.4.2-150200.11.41.1
SUSE Linux Enterprise High Performance Computing 15 SP2 LTSS 15-SP2 (src):
 ffmpeg-3.4.2-150200.11.41.1
SUSE Linux Enterprise High Performance Computing LTSS 15 SP3 (src):
 ffmpeg-3.4.2-150200.11.41.1
SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4 (src):
 ffmpeg-3.4.2-150200.11.41.1
SUSE Linux Enterprise High Performance Computing LTSS 15 SP4 (src):
 ffmpeg-3.4.2-150200.11.41.1
SUSE Linux Enterprise Desktop 15 SP4 LTSS 15-SP4 (src):
 ffmpeg-3.4.2-150200.11.41.1
SUSE Linux Enterprise Server 15 SP2 LTSS 15-SP2 (src):
 ffmpeg-3.4.2-150200.11.41.1
SUSE Linux Enterprise Server 15 SP3 LTSS 15-SP3 (src):
 ffmpeg-3.4.2-150200.11.41.1
SUSE Linux Enterprise Server 15 SP4 LTSS 15-SP4 (src):
 ffmpeg-3.4.2-150200.11.41.1
SUSE Linux Enterprise Server for SAP Applications 15 SP2 (src):
 ffmpeg-3.4.2-150200.11.41.1
SUSE Linux Enterprise Server for SAP Applications 15 SP3 (src):
 ffmpeg-3.4.2-150200.11.41.1
SUSE Linux Enterprise Server for SAP Applications 15 SP4 (src):
 ffmpeg-3.4.2-150200.11.41.1
SUSE Linux Enterprise Workstation Extension 15 SP5 (src):
 ffmpeg-3.4.2-150200.11.41.1
SUSE Enterprise Storage 7.1 (src):
 ffmpeg-3.4.2-150200.11.41.1

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 9 Andrea Mattiazzo 2024-06-10 10:24:46 UTC
All done, closing.