Bug 1192990 (CVE-2021-4001) - VUL-0: CVE-2021-4001: kernel-source-rt,kernel-source,kernel-source-azure: kernel: race condition when the EBPF map is frozen
Summary: VUL-0: CVE-2021-4001: kernel-source-rt,kernel-source,kernel-source-azure: ker...
Status: RESOLVED FIXED
Alias: CVE-2021-4001
Product: SUSE Security Incidents
Classification: Novell Products
Component: Incidents (show other bugs)
Version: unspecified
Hardware: Other Other
: P3 - Medium : Major
Target Milestone: ---
Assignee: Security Team bot
QA Contact: Security Team bot
URL: https://smash.suse.de/issue/315528/
Whiteboard: CVSSv3.1:SUSE:CVE-2021-4001:8.4:(AV:L...
Keywords:
Depends on:
Blocks: 1192991
  Show dependency tree / graph
 
Reported: 2021-11-23 12:09 UTC by Carlos López
Modified: 2024-06-25 16:27 UTC (History)
6 users (show)

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

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Description Carlos López 2021-11-23 12:09:26 UTC 
rh#2025645

When a map is read-only for the ebpf program and is frozen, the ebpf verifier will directly take the value from the map and directly use the value to participate in the verification of the ebpf verifier. After the ebpf program passes the verification of the verifier, and then uses the race condition bug to modify the frozen map content, all the assumptions of the ebpf verifier will be invalid, and it may also lead to the problem of local privilege escalation.

Reference and upstream patch:
https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf.git/commit/?id=353050be4c19e102178ccc05988101887c25ae53

References:
https://bugzilla.redhat.com/show_bug.cgi?id=2025645
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2021-4001
Comment 2 Tony Jones 2021-11-24 17:09:50 UTC 
I'll take this one.
Comment 3 Tony Jones 2021-11-29 15:09:58 UTC 
Pushed to SLE15-SP4.
Still working on SLE15-SP2.
Comment 6 Tony Jones 2022-01-01 21:26:12 UTC 
(In reply to Tony Jones from comment #3)
> Pushed to SLE15-SP4.
> Still working on SLE15-SP2.

Pushed to SP2 and also SP3 (diff versions).  With KABI workaround.

Reassigned to sec-team.
Comment 13 Swamp Workflow Management 2022-01-11 20:22:18 UTC 
openSUSE-SU-2022:0056-1: An update that solves 14 vulnerabilities and has 62 fixes is now available.

Category: security (important)
Bug References: 1139944,1151927,1152489,1153275,1154353,1154355,1161907,1164565,1166780,1169514,1176242,1176447,1176536,1176544,1176545,1176546,1176548,1176558,1176559,1176774,1176940,1176956,1177440,1178134,1178270,1179211,1179424,1179426,1179427,1179599,1181148,1181507,1181710,1182404,1183534,1183540,1183897,1184318,1185726,1185902,1186332,1187541,1189126,1189158,1191793,1191876,1192267,1192320,1192507,1192511,1192569,1192606,1192691,1192845,1192847,1192874,1192877,1192946,1192969,1192987,1192990,1192998,1193002,1193042,1193139,1193169,1193306,1193318,1193349,1193440,1193442,1193655,1193993,1194087,1194094,1194266
CVE References: CVE-2020-24504,CVE-2020-27820,CVE-2021-28711,CVE-2021-28712,CVE-2021-28713,CVE-2021-28714,CVE-2021-28715,CVE-2021-33098,CVE-2021-4001,CVE-2021-4002,CVE-2021-43975,CVE-2021-43976,CVE-2021-45485,CVE-2021-45486
JIRA References: 
Sources used:
openSUSE Leap 15.3 (src):    kernel-azure-5.3.18-38.34.1, kernel-source-azure-5.3.18-38.34.1, kernel-syms-azure-5.3.18-38.34.1
Comment 14 Swamp Workflow Management 2022-01-11 20:30:24 UTC 
SUSE-SU-2022:0056-1: An update that solves 14 vulnerabilities and has 62 fixes is now available.

Category: security (important)
Bug References: 1139944,1151927,1152489,1153275,1154353,1154355,1161907,1164565,1166780,1169514,1176242,1176447,1176536,1176544,1176545,1176546,1176548,1176558,1176559,1176774,1176940,1176956,1177440,1178134,1178270,1179211,1179424,1179426,1179427,1179599,1181148,1181507,1181710,1182404,1183534,1183540,1183897,1184318,1185726,1185902,1186332,1187541,1189126,1189158,1191793,1191876,1192267,1192320,1192507,1192511,1192569,1192606,1192691,1192845,1192847,1192874,1192877,1192946,1192969,1192987,1192990,1192998,1193002,1193042,1193139,1193169,1193306,1193318,1193349,1193440,1193442,1193655,1193993,1194087,1194094,1194266
CVE References: CVE-2020-24504,CVE-2020-27820,CVE-2021-28711,CVE-2021-28712,CVE-2021-28713,CVE-2021-28714,CVE-2021-28715,CVE-2021-33098,CVE-2021-4001,CVE-2021-4002,CVE-2021-43975,CVE-2021-43976,CVE-2021-45485,CVE-2021-45486
JIRA References: 
Sources used:
SUSE Linux Enterprise Module for Public Cloud 15-SP3 (src):    kernel-azure-5.3.18-38.34.1, kernel-source-azure-5.3.18-38.34.1, kernel-syms-azure-5.3.18-38.34.1

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 15 Swamp Workflow Management 2022-01-14 14:23:45 UTC 
SUSE-SU-2022:0079-1: An update that solves 14 vulnerabilities, contains four features and has 58 fixes is now available.

Category: security (important)
Bug References: 1139944,1151927,1152489,1153275,1154353,1154355,1161907,1164565,1166780,1169514,1176242,1176447,1176536,1176544,1176545,1176546,1176548,1176558,1176559,1176774,1176940,1176956,1177440,1178134,1178270,1179211,1179426,1179427,1179599,1181148,1181507,1181710,1182404,1183534,1183540,1183897,1184318,1185726,1185902,1186332,1187541,1189126,1191793,1191876,1192267,1192320,1192507,1192511,1192569,1192606,1192845,1192847,1192877,1192946,1192969,1192987,1192990,1192998,1193002,1193042,1193139,1193169,1193306,1193318,1193349,1193440,1193442,1193655,1193993,1194087,1194094,1194266
CVE References: CVE-2020-24504,CVE-2020-27820,CVE-2021-28711,CVE-2021-28712,CVE-2021-28713,CVE-2021-28714,CVE-2021-28715,CVE-2021-33098,CVE-2021-4001,CVE-2021-4002,CVE-2021-43975,CVE-2021-43976,CVE-2021-45485,CVE-2021-45486
JIRA References: ECO-3666,SLE-17823,SLE-20042,SLE-23139
Sources used:
SUSE MicroOS 5.1 (src):    kernel-rt-5.3.18-68.1
SUSE Linux Enterprise Module for Realtime 15-SP3 (src):    kernel-rt-5.3.18-68.1, kernel-rt_debug-5.3.18-68.1, kernel-source-rt-5.3.18-68.1, kernel-syms-rt-5.3.18-68.1

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 16 Swamp Workflow Management 2022-01-19 20:24:54 UTC 
SUSE-SU-2022:0131-1: An update that solves 13 vulnerabilities, contains one feature and has 61 fixes is now available.

Category: security (important)
Bug References: 1139944,1151927,1152489,1153275,1154353,1154355,1161907,1164565,1166780,1169514,1176242,1176447,1176536,1176544,1176545,1176546,1176548,1176558,1176559,1176774,1176940,1176956,1177440,1178134,1178270,1179211,1179424,1179426,1179427,1179599,1181148,1181507,1181710,1182404,1183534,1183540,1183897,1184318,1185726,1185902,1186332,1187541,1189126,1189158,1191793,1191876,1192267,1192320,1192507,1192511,1192569,1192606,1192691,1192845,1192847,1192874,1192946,1192969,1192987,1192990,1192998,1193002,1193042,1193139,1193169,1193306,1193318,1193349,1193440,1193442,1193655,1193993,1194087,1194094
CVE References: CVE-2020-24504,CVE-2020-27820,CVE-2021-28711,CVE-2021-28712,CVE-2021-28713,CVE-2021-28714,CVE-2021-28715,CVE-2021-4001,CVE-2021-4002,CVE-2021-43975,CVE-2021-43976,CVE-2021-45485,CVE-2021-45486
JIRA References: SLE-22574
Sources used:
SUSE MicroOS 5.1 (src):    kernel-default-5.3.18-59.40.1, kernel-default-base-5.3.18-59.40.1.18.25.1
SUSE Linux Enterprise Workstation Extension 15-SP3 (src):    kernel-default-5.3.18-59.40.1, kernel-preempt-5.3.18-59.40.1
SUSE Linux Enterprise Module for Live Patching 15-SP3 (src):    kernel-default-5.3.18-59.40.1, kernel-livepatch-SLE15-SP3_Update_11-1-7.3.1
SUSE Linux Enterprise Module for Legacy Software 15-SP3 (src):    kernel-default-5.3.18-59.40.1
SUSE Linux Enterprise Module for Development Tools 15-SP3 (src):    kernel-docs-5.3.18-59.40.1, kernel-obs-build-5.3.18-59.40.1, kernel-preempt-5.3.18-59.40.1, kernel-source-5.3.18-59.40.1, kernel-syms-5.3.18-59.40.1
SUSE Linux Enterprise Module for Basesystem 15-SP3 (src):    kernel-64kb-5.3.18-59.40.1, kernel-default-5.3.18-59.40.1, kernel-default-base-5.3.18-59.40.1.18.25.1, kernel-preempt-5.3.18-59.40.1, kernel-source-5.3.18-59.40.1, kernel-zfcpdump-5.3.18-59.40.1
SUSE Linux Enterprise High Availability 15-SP3 (src):    kernel-default-5.3.18-59.40.1

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 17 Swamp Workflow Management 2022-01-19 20:33:30 UTC 
openSUSE-SU-2022:0131-1: An update that solves 13 vulnerabilities, contains one feature and has 61 fixes is now available.

Category: security (important)
Bug References: 1139944,1151927,1152489,1153275,1154353,1154355,1161907,1164565,1166780,1169514,1176242,1176447,1176536,1176544,1176545,1176546,1176548,1176558,1176559,1176774,1176940,1176956,1177440,1178134,1178270,1179211,1179424,1179426,1179427,1179599,1181148,1181507,1181710,1182404,1183534,1183540,1183897,1184318,1185726,1185902,1186332,1187541,1189126,1189158,1191793,1191876,1192267,1192320,1192507,1192511,1192569,1192606,1192691,1192845,1192847,1192874,1192946,1192969,1192987,1192990,1192998,1193002,1193042,1193139,1193169,1193306,1193318,1193349,1193440,1193442,1193655,1193993,1194087,1194094
CVE References: CVE-2020-24504,CVE-2020-27820,CVE-2021-28711,CVE-2021-28712,CVE-2021-28713,CVE-2021-28714,CVE-2021-28715,CVE-2021-4001,CVE-2021-4002,CVE-2021-43975,CVE-2021-43976,CVE-2021-45485,CVE-2021-45486
JIRA References: SLE-22574
Sources used:
openSUSE Leap 15.3 (src):    dtb-aarch64-5.3.18-59.40.1, kernel-64kb-5.3.18-59.40.1, kernel-debug-5.3.18-59.40.1, kernel-default-5.3.18-59.40.1, kernel-default-base-5.3.18-59.40.1.18.25.1, kernel-docs-5.3.18-59.40.1, kernel-kvmsmall-5.3.18-59.40.1, kernel-obs-build-5.3.18-59.40.1, kernel-obs-qa-5.3.18-59.40.1, kernel-preempt-5.3.18-59.40.1, kernel-source-5.3.18-59.40.1, kernel-syms-5.3.18-59.40.1, kernel-zfcpdump-5.3.18-59.40.1
Comment 20 Swamp Workflow Management 2022-01-25 20:33:37 UTC 
SUSE-SU-2022:0181-1: An update that solves 10 vulnerabilities, contains one feature and has 42 fixes is now available.

Category: security (important)
Bug References: 1139944,1151927,1152489,1154353,1154355,1161907,1164565,1166780,1176242,1176536,1176544,1176545,1176546,1176548,1176558,1176559,1176956,1177440,1178270,1179211,1179426,1179427,1179960,1181148,1181507,1181710,1183534,1183540,1183897,1185726,1185902,1187541,1189126,1191793,1191876,1192267,1192507,1192511,1192569,1192606,1192845,1192847,1192877,1192946,1192969,1192990,1193042,1193169,1193318,1193349,1193440,1193442
CVE References: CVE-2021-28711,CVE-2021-28712,CVE-2021-28713,CVE-2021-28714,CVE-2021-28715,CVE-2021-33098,CVE-2021-4001,CVE-2021-4002,CVE-2021-43975,CVE-2021-43976
JIRA References: SLE-20042
Sources used:
SUSE MicroOS 5.0 (src):    kernel-rt-5.3.18-65.2
SUSE Linux Enterprise Module for Realtime 15-SP2 (src):    kernel-rt-5.3.18-65.2, kernel-rt_debug-5.3.18-65.2, kernel-source-rt-5.3.18-65.2, kernel-syms-rt-5.3.18-65.1

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 21 Swamp Workflow Management 2022-01-26 11:30:04 UTC 
SUSE-SU-2022:0197-1: An update that solves 22 vulnerabilities and has 59 fixes is now available.

Category: security (important)
Bug References: 1071995,1139944,1151927,1152489,1153275,1154353,1154355,1161907,1164565,1166780,1169514,1176242,1176536,1176544,1176545,1176546,1176548,1176558,1176559,1176940,1176956,1177440,1178270,1179211,1179424,1179426,1179427,1179599,1179960,1181148,1181507,1181710,1183534,1183540,1183897,1184209,1185726,1185902,1187541,1189126,1189158,1191271,1191793,1191876,1192267,1192507,1192511,1192569,1192606,1192845,1192847,1192877,1192946,1192969,1192987,1192990,1192998,1193002,1193042,1193169,1193255,1193306,1193318,1193349,1193440,1193442,1193660,1193669,1193727,1193767,1193901,1193927,1194001,1194087,1194094,1194302,1194516,1194517,1194529,1194888,1194985
CVE References: CVE-2020-27820,CVE-2020-27825,CVE-2021-28711,CVE-2021-28712,CVE-2021-28713,CVE-2021-28714,CVE-2021-28715,CVE-2021-33098,CVE-2021-4001,CVE-2021-4002,CVE-2021-4083,CVE-2021-4135,CVE-2021-4149,CVE-2021-4197,CVE-2021-4202,CVE-2021-43975,CVE-2021-43976,CVE-2021-44733,CVE-2021-45485,CVE-2021-45486,CVE-2022-0185,CVE-2022-0322
JIRA References: 
Sources used:
SUSE MicroOS 5.0 (src):    kernel-default-5.3.18-24.99.1, kernel-default-base-5.3.18-24.99.1.9.46.1
SUSE Manager Server 4.1 (src):    kernel-default-5.3.18-24.99.1, kernel-default-base-5.3.18-24.99.1.9.46.1, kernel-docs-5.3.18-24.99.1, kernel-obs-build-5.3.18-24.99.1, kernel-preempt-5.3.18-24.99.1, kernel-source-5.3.18-24.99.1, kernel-syms-5.3.18-24.99.1
SUSE Manager Retail Branch Server 4.1 (src):    kernel-default-5.3.18-24.99.1, kernel-default-base-5.3.18-24.99.1.9.46.1, kernel-docs-5.3.18-24.99.1, kernel-preempt-5.3.18-24.99.1, kernel-source-5.3.18-24.99.1, kernel-syms-5.3.18-24.99.1
SUSE Manager Proxy 4.1 (src):    kernel-default-5.3.18-24.99.1, kernel-default-base-5.3.18-24.99.1.9.46.1, kernel-docs-5.3.18-24.99.1, kernel-preempt-5.3.18-24.99.1, kernel-source-5.3.18-24.99.1, kernel-syms-5.3.18-24.99.1
SUSE Linux Enterprise Server for SAP 15-SP2 (src):    kernel-default-5.3.18-24.99.1, kernel-default-base-5.3.18-24.99.1.9.46.1, kernel-docs-5.3.18-24.99.1, kernel-obs-build-5.3.18-24.99.1, kernel-preempt-5.3.18-24.99.1, kernel-source-5.3.18-24.99.1, kernel-syms-5.3.18-24.99.1
SUSE Linux Enterprise Server 15-SP2-LTSS (src):    kernel-default-5.3.18-24.99.1, kernel-default-base-5.3.18-24.99.1.9.46.1, kernel-docs-5.3.18-24.99.1, kernel-obs-build-5.3.18-24.99.1, kernel-preempt-5.3.18-24.99.1, kernel-source-5.3.18-24.99.1, kernel-syms-5.3.18-24.99.1
SUSE Linux Enterprise Server 15-SP2-BCL (src):    kernel-default-5.3.18-24.99.1, kernel-default-base-5.3.18-24.99.1.9.46.1, kernel-docs-5.3.18-24.99.1, kernel-preempt-5.3.18-24.99.1, kernel-source-5.3.18-24.99.1, kernel-syms-5.3.18-24.99.1
SUSE Linux Enterprise Module for Live Patching 15-SP2 (src):    kernel-default-5.3.18-24.99.1, kernel-livepatch-SLE15-SP2_Update_23-1-5.3.1
SUSE Linux Enterprise High Performance Computing 15-SP2-LTSS (src):    kernel-default-5.3.18-24.99.1, kernel-default-base-5.3.18-24.99.1.9.46.1, kernel-docs-5.3.18-24.99.1, kernel-obs-build-5.3.18-24.99.1, kernel-preempt-5.3.18-24.99.1, kernel-source-5.3.18-24.99.1, kernel-syms-5.3.18-24.99.1
SUSE Linux Enterprise High Performance Computing 15-SP2-ESPOS (src):    kernel-default-5.3.18-24.99.1, kernel-default-base-5.3.18-24.99.1.9.46.1, kernel-docs-5.3.18-24.99.1, kernel-obs-build-5.3.18-24.99.1, kernel-preempt-5.3.18-24.99.1, kernel-source-5.3.18-24.99.1, kernel-syms-5.3.18-24.99.1
SUSE Linux Enterprise High Availability 15-SP2 (src):    kernel-default-5.3.18-24.99.1
SUSE Enterprise Storage 7 (src):    kernel-default-5.3.18-24.99.1, kernel-default-base-5.3.18-24.99.1.9.46.1, kernel-docs-5.3.18-24.99.1, kernel-obs-build-5.3.18-24.99.1, kernel-preempt-5.3.18-24.99.1, kernel-source-5.3.18-24.99.1, kernel-syms-5.3.18-24.99.1

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 22 Swamp Workflow Management 2022-03-01 20:30:44 UTC 
openSUSE-SU-2022:0056-1: An update that solves 17 vulnerabilities and has 62 fixes is now available.

Category: security (important)
Bug References: 1139944,1151927,1152489,1153275,1154353,1154355,1161907,1164565,1166780,1169514,1176242,1176447,1176536,1176544,1176545,1176546,1176548,1176558,1176559,1176774,1176940,1176956,1177440,1178134,1178270,1179211,1179424,1179426,1179427,1179599,1181148,1181507,1181710,1182404,1183534,1183540,1183897,1184318,1185726,1185902,1186332,1187541,1189126,1189158,1191793,1191876,1192267,1192320,1192507,1192511,1192569,1192606,1192691,1192845,1192847,1192874,1192877,1192946,1192969,1192987,1192990,1192998,1193002,1193042,1193139,1193169,1193306,1193318,1193349,1193440,1193442,1193655,1193993,1194087,1194094,1194175,1194176,1194177,1194266
CVE References: CVE-2020-24504,CVE-2020-27820,CVE-2021-28711,CVE-2021-28712,CVE-2021-28713,CVE-2021-28714,CVE-2021-28715,CVE-2021-33098,CVE-2021-4001,CVE-2021-4002,CVE-2021-43975,CVE-2021-43976,CVE-2021-45485,CVE-2021-45486,CVE-2022-23096,CVE-2022-23097,CVE-2022-23098
JIRA References: 
Sources used:
openSUSE Leap 15.3 (src):    kernel-azure-5.3.18-38.34.1, kernel-source-azure-5.3.18-38.34.1, kernel-syms-azure-5.3.18-38.34.1
openSUSE Backports SLE-15-SP3 (src):    connman-1.41-bp153.2.3.1
Comment 23 Swamp Workflow Management 2022-05-07 16:21:22 UTC 
openSUSE-SU-2022:0131-1: An update that solves 14 vulnerabilities, contains one feature and has 61 fixes is now available.

Category: security (important)
Bug References: 1139944,1151927,1152489,1153275,1154353,1154355,1161907,1164565,1166780,1169514,1176242,1176447,1176536,1176544,1176545,1176546,1176548,1176558,1176559,1176774,1176940,1176956,1177440,1178134,1178270,1179211,1179424,1179426,1179427,1179599,1181148,1181507,1181710,1182404,1183534,1183540,1183897,1184318,1185726,1185902,1186332,1187541,1189126,1189158,1191793,1191876,1192267,1192320,1192507,1192511,1192569,1192606,1192691,1192845,1192847,1192874,1192946,1192969,1192987,1192990,1192998,1193002,1193042,1193139,1193169,1193306,1193318,1193349,1193440,1193442,1193655,1193993,1194087,1194094,1195323
CVE References: CVE-2020-24504,CVE-2020-27820,CVE-2021-2032,CVE-2021-28711,CVE-2021-28712,CVE-2021-28713,CVE-2021-28714,CVE-2021-28715,CVE-2021-4001,CVE-2021-4002,CVE-2021-43975,CVE-2021-43976,CVE-2021-45485,CVE-2021-45486
JIRA References: SLE-22574
Sources used:
openSUSE Leap 15.4 (src):    keycloak-18.0.0-lp154.2.3.1
openSUSE Leap 15.3 (src):    dtb-aarch64-5.3.18-59.40.1, kernel-64kb-5.3.18-59.40.1, kernel-debug-5.3.18-59.40.1, kernel-default-5.3.18-59.40.1, kernel-default-base-5.3.18-59.40.1.18.25.1, kernel-docs-5.3.18-59.40.1, kernel-kvmsmall-5.3.18-59.40.1, kernel-obs-build-5.3.18-59.40.1, kernel-obs-qa-5.3.18-59.40.1, kernel-preempt-5.3.18-59.40.1, kernel-source-5.3.18-59.40.1, kernel-syms-5.3.18-59.40.1, kernel-zfcpdump-5.3.18-59.40.1
Comment 25 Marcus Meissner 2022-11-02 12:23:59 UTC 
done