Bug 1186660 (CVE-2020-20448) - VUL-1: CVE-2020-20448: ffmpeg: Divide By Zero issue via libavcodec/ratecontrol.c
Summary: VUL-1: CVE-2020-20448: ffmpeg: Divide By Zero issue via libavcodec/ratecontrol.c
Status: RESOLVED FIXED
Alias: CVE-2020-20448
Product: SUSE Security Incidents
Classification: Novell Products
Component: Incidents (show other bugs)
Version: unspecified
Hardware: Other Other
: P4 - Low : Minor
Target Milestone: ---
Assignee: Security Team bot
QA Contact: Security Team bot
URL: https://smash.suse.de/issue/300718/
Whiteboard: CVSSv3.1:SUSE:CVE-2020-20448:5.5:(AV:...
Keywords:
Depends on:
Blocks:
 
Reported: 2021-05-31 10:07 UTC by Robert Frohl
Modified: 2024-05-28 12:00 UTC (History)
3 users (show)

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


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Description Robert Frohl 2021-05-31 10:07:46 UTC
CVE-2020-20448

FFmpeg 4.1.3 is affected by a Divide By Zero issue via libavcodec/ratecontrol.c,
which allows a remote malicious user to cause a Denial of Service.

References:
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2020-20448
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-20448
https://trac.ffmpeg.org/ticket/7990
Comment 1 Robert Frohl 2021-05-31 10:08:38 UTC
ffmpeg 3.4.2 asan:

==149==ERROR: AddressSanitizer: FPE on unknown address 0x000000b8c044 (pc 0x000000b8c044 bp 0x610000000540 sp 0x7ffedc8f87c0 T0)
    #0 0xb8c043 in adx_write_trailer libavformat/rawenc.c:70
    #1 0xb1823e in av_write_trailer libavformat/mux.c:1336
    #2 0x558b5c in transcode fftools/ffmpeg.c:4661
    #3 0x558b5c in main fftools/ffmpeg.c:4830
    #4 0x7fe6fe8a9349 in __libc_start_main (/lib64/libc.so.6+0x24349)
    #5 0x5703d9 in _start (/build/ffmpeg-3.4.2/ffmpeg_g+0x5703d9)

AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: FPE libavformat/rawenc.c:70 in adx_write_trailer
Comment 2 Robert Frohl 2021-05-31 10:09:13 UTC
tracking as affected:

- SUSE:SLE-15:Update/ffmpeg
- SUSE:SLE-15-SP2:Update/ffmpeg
Comment 3 Alynx Zhou 2021-06-11 08:27:39 UTC
https://build.suse.de/request/show/243003
Comment 7 Swamp Workflow Management 2021-07-14 19:54:16 UTC
openSUSE-SU-2021:2322-1: An update that fixes 23 vulnerabilities is now available.

Category: security (important)
Bug References: 1172640,1186406,1186583,1186586,1186587,1186596,1186597,1186598,1186600,1186603,1186604,1186605,1186613,1186614,1186615,1186616,1186658,1186660,1186757,1186758,1186762,1186763
CVE References: CVE-2019-17539,CVE-2020-13904,CVE-2020-20448,CVE-2020-20451,CVE-2020-21041,CVE-2020-22015,CVE-2020-22016,CVE-2020-22017,CVE-2020-22019,CVE-2020-22020,CVE-2020-22021,CVE-2020-22022,CVE-2020-22023,CVE-2020-22025,CVE-2020-22026,CVE-2020-22031,CVE-2020-22032,CVE-2020-22033,CVE-2020-22034,CVE-2020-22038,CVE-2020-22039,CVE-2020-22043,CVE-2020-22044
JIRA References: 
Sources used:
openSUSE Leap 15.3 (src):    ffmpeg-3.4.2-11.3.1
Comment 8 Swamp Workflow Management 2021-07-14 20:15:56 UTC
SUSE-SU-2021:2322-1: An update that fixes 23 vulnerabilities is now available.

Category: security (important)
Bug References: 1172640,1186406,1186583,1186586,1186587,1186596,1186597,1186598,1186600,1186603,1186604,1186605,1186613,1186614,1186615,1186616,1186658,1186660,1186757,1186758,1186762,1186763
CVE References: CVE-2019-17539,CVE-2020-13904,CVE-2020-20448,CVE-2020-20451,CVE-2020-21041,CVE-2020-22015,CVE-2020-22016,CVE-2020-22017,CVE-2020-22019,CVE-2020-22020,CVE-2020-22021,CVE-2020-22022,CVE-2020-22023,CVE-2020-22025,CVE-2020-22026,CVE-2020-22031,CVE-2020-22032,CVE-2020-22033,CVE-2020-22034,CVE-2020-22038,CVE-2020-22039,CVE-2020-22043,CVE-2020-22044
JIRA References: 
Sources used:
SUSE Linux Enterprise Workstation Extension 15-SP3 (src):    ffmpeg-3.4.2-11.3.1
SUSE Linux Enterprise Workstation Extension 15-SP2 (src):    ffmpeg-3.4.2-11.3.1
SUSE Linux Enterprise Module for Packagehub Subpackages 15-SP3 (src):    ffmpeg-3.4.2-11.3.1
SUSE Linux Enterprise Module for Packagehub Subpackages 15-SP2 (src):    ffmpeg-3.4.2-11.3.1
SUSE Linux Enterprise Module for Desktop Applications 15-SP3 (src):    ffmpeg-3.4.2-11.3.1
SUSE Linux Enterprise Module for Desktop Applications 15-SP2 (src):    ffmpeg-3.4.2-11.3.1

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 11 Swamp Workflow Management 2021-09-02 16:19:09 UTC
# maintenance_jira_update_notice
SUSE-SU-2021:2929-1: An update that fixes 31 vulnerabilities is now available.

Category: security (important)
Bug References: 1129714,1172640,1186406,1186583,1186586,1186587,1186596,1186597,1186598,1186600,1186603,1186604,1186605,1186613,1186614,1186615,1186616,1186658,1186660,1186757,1186758,1186762,1186763,1186849,1186859,1186861,1186863,1189142,1189348,1189350
CVE References: CVE-2019-17539,CVE-2019-9721,CVE-2020-13904,CVE-2020-20448,CVE-2020-20451,CVE-2020-21041,CVE-2020-21688,CVE-2020-21697,CVE-2020-22015,CVE-2020-22016,CVE-2020-22017,CVE-2020-22019,CVE-2020-22020,CVE-2020-22021,CVE-2020-22022,CVE-2020-22023,CVE-2020-22025,CVE-2020-22026,CVE-2020-22031,CVE-2020-22032,CVE-2020-22033,CVE-2020-22034,CVE-2020-22038,CVE-2020-22039,CVE-2020-22043,CVE-2020-22044,CVE-2020-22046,CVE-2020-22048,CVE-2020-22049,CVE-2020-22054,CVE-2021-38114
JIRA References: 
Sources used:
SUSE Manager Server 4.0 (src):    ffmpeg-3.4.2-4.34.2
SUSE Manager Retail Branch Server 4.0 (src):    ffmpeg-3.4.2-4.34.2
SUSE Manager Proxy 4.0 (src):    ffmpeg-3.4.2-4.34.2
SUSE Linux Enterprise Server for SAP 15-SP1 (src):    ffmpeg-3.4.2-4.34.2
SUSE Linux Enterprise Server for SAP 15 (src):    ffmpeg-3.4.2-4.34.2
SUSE Linux Enterprise Server 15-SP1-LTSS (src):    ffmpeg-3.4.2-4.34.2
SUSE Linux Enterprise Server 15-SP1-BCL (src):    ffmpeg-3.4.2-4.34.2
SUSE Linux Enterprise Server 15-LTSS (src):    ffmpeg-3.4.2-4.34.2
SUSE Linux Enterprise High Performance Computing 15-SP1-LTSS (src):    ffmpeg-3.4.2-4.34.2
SUSE Linux Enterprise High Performance Computing 15-SP1-ESPOS (src):    ffmpeg-3.4.2-4.34.2
SUSE Linux Enterprise High Performance Computing 15-LTSS (src):    ffmpeg-3.4.2-4.34.2
SUSE Linux Enterprise High Performance Computing 15-ESPOS (src):    ffmpeg-3.4.2-4.34.2
SUSE Enterprise Storage 6 (src):    ffmpeg-3.4.2-4.34.2
SUSE CaaS Platform 4.0 (src):    ffmpeg-3.4.2-4.34.2

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 12 Carlos López 2024-05-28 12:00:57 UTC
Done, closing.