01 Record
CVE-2021-33631
Kernel crash in EXT4 filesystem
MediumPUBLISHEDCNA: openEuler
CNA base score5.5 CVSS v3.xCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
02 Description
Kernel crash in EXT4 filesystem
03 Exploitation and scoring
- Exploitation
- Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
- SSVC decision
- ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
- AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
- Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
- EPSS probability
- 0.37% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 30.7% of scored records. A rank, not a probability.
- NVD base score
- 7.8 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- Moderate. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2024-01-18 15:05Z2 YR AGO
- Last updated
- 2025-02-13 16:28Z1 YR AGO
- Reserved
- 2021-05-28
- Assigning CNA
- openEuler
- Record state
- PUBLISHED
- Severity
- Medium (CVSS 5.5)
- CNA CVSS vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-190Integer Overflow or WraparoundBase
- Data version
- 5.1
- Document digest
- 6276bb4101431028d478173532685f4bb5941311cd5efe88c22934393702bf67
05 Affected products
VendorProductVersionsPlatforms
06 References
- www.openeuler.orghttps://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2024-1030
- www.openeuler.orghttps://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2024-1031
- www.openeuler.orghttps://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2024-1032
- www.openeuler.orghttps://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2024-1033
- www.openeuler.orghttps://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2024-1034
- www.openeuler.orghttps://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2024-1035
- gitee.comhttps://gitee.com/src-openeuler/kernel/pulls/1389
- gitee.comhttps://gitee.com/src-openeuler/kernel/pulls/1396
- git.kernel.orghttps://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=5c099c4fdc438014d5893629e70a8ba934433ee8
- www.openwall.comhttp://www.openwall.com/lists/oss-security/2024/01/30/3
- www.openwall.comhttp://www.openwall.com/lists/oss-security/2024/01/30/4
- www.openwall.comhttp://www.openwall.com/lists/oss-security/2024/01/30/5
- www.openwall.comhttp://www.openwall.com/lists/oss-security/2024/01/30/9
- www.openwall.comhttp://www.openwall.com/lists/oss-security/2024/01/30/10
- www.openwall.comhttp://www.openwall.com/lists/oss-security/2024/01/31/3
- www.openwall.comhttp://www.openwall.com/lists/oss-security/2024/01/31/2
- www.openwall.comhttp://www.openwall.com/lists/oss-security/2024/02/02/6
- www.openwall.comhttp://www.openwall.com/lists/oss-security/2024/02/02/9
- www.openwall.comhttp://www.openwall.com/lists/oss-security/2024/02/03/1
07 Fixed in
AlmaLinux 8
- bpftool Fixed in 4.18.0-513.24.1.el8_9
- kernel Fixed in 4.18.0-513.24.1.el8_9
- kernel-abi-stablelists Fixed in 4.18.0-513.24.1.el8_9
- kernel-core Fixed in 4.18.0-513.24.1.el8_9
- kernel-cross-headers Fixed in 4.18.0-513.24.1.el8_9
- kernel-debug Fixed in 4.18.0-513.24.1.el8_9
- kernel-debug-core Fixed in 4.18.0-513.24.1.el8_9
- kernel-debug-devel Fixed in 4.18.0-513.24.1.el8_9
- kernel-debug-modules Fixed in 4.18.0-513.24.1.el8_9
- kernel-debug-modules-extra Fixed in 4.18.0-513.24.1.el8_9
- kernel-devel Fixed in 4.18.0-513.24.1.el8_9
- kernel-doc Fixed in 4.18.0-513.24.1.el8_9
- kernel-modules Fixed in 4.18.0-513.24.1.el8_9
- kernel-modules-extra Fixed in 4.18.0-513.24.1.el8_9
- kernel-tools Fixed in 4.18.0-513.24.1.el8_9
- kernel-tools-libs Fixed in 4.18.0-513.24.1.el8_9
- kernel-tools-libs-devel Fixed in 4.18.0-513.24.1.el8_9
- kernel-zfcpdump Fixed in 4.18.0-513.24.1.el8_9
- kernel-zfcpdump-core Fixed in 4.18.0-513.24.1.el8_9
- kernel-zfcpdump-devel Fixed in 4.18.0-513.24.1.el8_9
- kernel-zfcpdump-modules Fixed in 4.18.0-513.24.1.el8_9
- kernel-zfcpdump-modules-extra Fixed in 4.18.0-513.24.1.el8_9
- perf Fixed in 4.18.0-513.24.1.el8_9
- python3-perf Fixed in 4.18.0-513.24.1.el8_9
Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
CloudLinux 8
- bpftool Fixed in 4.18.0-513.24.1.el8_9
- kernel Fixed in 4.18.0-513.24.1.el8_9
- kernel-abi-stablelists Fixed in 4.18.0-513.24.1.el8_9
- kernel-core Fixed in 4.18.0-513.24.1.el8_9
- kernel-cross-headers Fixed in 4.18.0-513.24.1.el8_9
- kernel-debug Fixed in 4.18.0-513.24.1.el8_9
- kernel-debug-core Fixed in 4.18.0-513.24.1.el8_9
- kernel-debug-devel Fixed in 4.18.0-513.24.1.el8_9
- kernel-debug-modules Fixed in 4.18.0-513.24.1.el8_9
- kernel-debug-modules-extra Fixed in 4.18.0-513.24.1.el8_9
- kernel-devel Fixed in 4.18.0-513.24.1.el8_9
- kernel-doc Fixed in 4.18.0-513.24.1.el8_9
- kernel-modules Fixed in 4.18.0-513.24.1.el8_9
- kernel-modules-extra Fixed in 4.18.0-513.24.1.el8_9
- kernel-tools Fixed in 4.18.0-513.24.1.el8_9
- kernel-tools-libs Fixed in 4.18.0-513.24.1.el8_9
- kernel-tools-libs-devel Fixed in 4.18.0-513.24.1.el8_9
- kernel-zfcpdump Fixed in 4.18.0-513.24.1.el8_9
- kernel-zfcpdump-core Fixed in 4.18.0-513.24.1.el8_9
- kernel-zfcpdump-devel Fixed in 4.18.0-513.24.1.el8_9
- kernel-zfcpdump-modules Fixed in 4.18.0-513.24.1.el8_9
- kernel-zfcpdump-modules-extra Fixed in 4.18.0-513.24.1.el8_9
- perf Fixed in 4.18.0-513.24.1.el8_9
- python3-perf Fixed in 4.18.0-513.24.1.el8_9
Derived from AlmaLinux 8. Partial coverage: only packages taken from AlmaLinux 8 are listed.
Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
Debian 12
- linux Fixed in 6.1.4-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- linux Fixed in 6.1.4-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- linux Fixed in 6.1.4-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 16.04 LTS
- linux-hwe-edge No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 18.04 LTS
- linux-aws-5.0 No fix yet
- linux-aws-5.3 No fix yet
- linux-azure No fix yet
- linux-azure-5.3 No fix yet
- linux-azure-edge No fix yet
- linux-gcp No fix yet
- linux-gcp-5.3 No fix yet
- linux-gke-4.15 No fix yet
- linux-gke-5.4 No fix yet
- linux-gkeop-5.4 No fix yet
- linux-hwe No fix yet
- linux-hwe-edge No fix yet
- linux-oem No fix yet
- linux-oracle-5.0 No fix yet
- linux-oracle-5.3 No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 20.04 LTS
- linux Fixed in 5.4.0-156.173
- linux-aws Fixed in 5.4.0-1107.115
- linux-aws-5.11 No fix yet
- linux-aws-5.13 No fix yet
- linux-aws-5.15 Fixed in 5.15.0-1033.37~20.04.1
- linux-aws-5.8 No fix yet
- linux-azure Fixed in 5.4.0-1114.120
- linux-azure-5.11 No fix yet
- linux-azure-5.13 No fix yet
- linux-azure-5.15 Fixed in 5.15.0-1035.42~20.04.1
- linux-azure-5.8 No fix yet
- linux-azure-fde No fix yet
- linux-bluefield Fixed in 5.4.0-1068.74
- linux-gcp Fixed in 5.4.0-1110.119
- linux-gcp-5.11 No fix yet
- linux-gcp-5.13 No fix yet
- linux-gcp-5.15 Fixed in 5.15.0-1031.38~20.04.1
- linux-gcp-5.8 No fix yet
- linux-gke No fix yet
- linux-gke-5.15 No fix yet
- linux-gkeop Fixed in 5.4.0-1074.78
- linux-gkeop-5.15 Fixed in 5.15.0-1017.22~20.04.1
- linux-hwe-5.11 No fix yet
- linux-hwe-5.13 No fix yet
- linux-hwe-5.15 Fixed in 5.15.0-69.76~20.04.1
- linux-hwe-5.8 No fix yet
- linux-ibm Fixed in 5.4.0-1054.59
- linux-intel-5.13 No fix yet
- linux-intel-iotg-5.15 Fixed in 5.15.0-1027.32~20.04.1
- linux-iot Fixed in 5.4.0-1019.20
- linux-kvm Fixed in 5.4.0-1096.102
- linux-lowlatency-hwe-5.15 Fixed in 5.15.0-69.76~20.04.1
- linux-nvidia-tegra-5.15 Fixed in 5.15.0-1014.14~20.04.1
- linux-oem-5.10 No fix yet
- linux-oem-5.13 No fix yet
- linux-oem-5.14 No fix yet
- linux-oem-5.6 No fix yet
- linux-oracle Fixed in 5.4.0-1106.115
- linux-oracle-5.11 No fix yet
- linux-oracle-5.13 No fix yet
9 further packages in Ubuntu 20.04 LTS not shown (first 40 listed).
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 22.04 LTS
- linux Fixed in 5.15.0-69.76
- linux-allwinner-5.19 No fix yet
- linux-aws Fixed in 5.15.0-1033.37
- linux-aws-5.19 No fix yet
- linux-aws-6.2 No fix yet
- linux-azure Fixed in 5.15.0-1035.42
- linux-azure-5.19 No fix yet
- linux-azure-6.2 No fix yet
- linux-azure-fde Fixed in 5.15.0-1035.42.1
- linux-azure-fde-5.19 No fix yet
- linux-azure-fde-6.2 No fix yet
- linux-gcp Fixed in 5.15.0-1031.38
- linux-gcp-5.19 No fix yet
- linux-gcp-6.2 No fix yet
- linux-gke Fixed in 5.15.0-1030.35
- linux-gkeop Fixed in 5.15.0-1017.22
- linux-hwe-5.19 No fix yet
- linux-hwe-6.2 No fix yet
- linux-ibm Fixed in 5.15.0-1027.30
- linux-intel-iotg Fixed in 5.15.0-1027.32
- linux-kvm Fixed in 5.15.0-1030.35
- linux-lowlatency Fixed in 5.15.0-69.76
- linux-lowlatency-hwe-5.19 No fix yet
- linux-lowlatency-hwe-6.2 No fix yet
- linux-nvidia Fixed in 5.15.0-1023.23
- linux-nvidia-6.2 No fix yet
- linux-oem-5.17 No fix yet
- linux-oem-6.0 No fix yet
- linux-oem-6.1 No fix yet
- linux-oracle Fixed in 5.15.0-1032.38
- linux-raspi Fixed in 5.15.0-1026.28
- linux-realtime No fix yet
- linux-riscv No fix yet
- linux-riscv-5.19 No fix yet
- linux-starfive-5.19 No fix yet
- linux-starfive-6.2 No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 24.04 LTS
- linux-raspi-realtime No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Nvidia-BlueField 22.04 LTS
- linux-bluefield Fixed in 5.15.0-1015.17
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 14.04 LTS
- linux No fix yet
- linux-aws Fixed in 4.4.0-1133.139Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-azure Fixed in 4.15.0-1178.193~14.04.1Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-lts-xenial Fixed in 4.4.0-256.290~14.04.1Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 16.04 LTS
- linux Fixed in 4.4.0-256.290Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-aws Fixed in 4.4.0-1171.186Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-aws-hwe Fixed in 4.15.0-1169.182~16.04.1Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-azure Fixed in 4.15.0-1178.193~16.04.1Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-gcp Fixed in 4.15.0-1163.180~16.04.1Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-hwe Fixed in 4.15.0-226.238~16.04.1Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-kvm Fixed in 4.4.0-1134.144Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-oracle Fixed in 4.15.0-1132.143~16.04.1Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 18.04 LTS
- linux Fixed in 4.15.0-226.238Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-aws Fixed in 4.15.0-1169.182Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-aws-5.4 Fixed in 5.4.0-1107.115~18.04.1Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-azure-4.15 Fixed in 4.15.0-1178.193Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-azure-5.4 Fixed in 5.4.0-1113.119~18.04.1Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-gcp-4.15 Fixed in 4.15.0-1163.180Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-gcp-5.4 Fixed in 5.4.0-1110.119~18.04.1Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-hwe-5.4 Fixed in 5.4.0-156.173~18.04.1Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-ibm-5.4 Fixed in 5.4.0-1054.59~18.04.1Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-kvm Fixed in 4.15.0-1153.158Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-oracle Fixed in 4.15.0-1132.143Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-oracle-5.4 Fixed in 5.4.0-1106.115~18.04.1Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-raspi-5.4 Fixed in 5.4.0-1091.102~18.04.1Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro FIPS-updates 16.04 LTS
- linux-fips Fixed in 4.4.0-1102.109Available with Ubuntu Pro: https://ubuntu.com/pro
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro FIPS-updates 18.04 LTS
- linux-aws-fips Fixed in 4.15.0-2108.114Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-azure-fips Fixed in 4.15.0-2087.93Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-fips Fixed in 4.15.0-1124.135Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-gcp-fips Fixed in 4.15.0-2071.76Available with Ubuntu Pro: https://ubuntu.com/pro
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro FIPS-updates 20.04 LTS
- linux-aws-fips Fixed in 5.4.0-1107.115+fips1Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-azure-fips Fixed in 5.4.0-1113.119+fips1Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-fips Fixed in 5.4.0-1082.91Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-gcp-fips Fixed in 5.4.0-1110.119+fips1Available with Ubuntu Pro: https://ubuntu.com/pro
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro FIPS 16.04 LTS
- linux-fips No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro FIPS 18.04 LTS
- linux-aws-fips No fix yet
- linux-azure-fips No fix yet
- linux-fips No fix yet
- linux-gcp-fips No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro FIPS 20.04 LTS
- linux-aws-fips No fix yet
- linux-azure-fips No fix yet
- linux-fips No fix yet
- linux-gcp-fips No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro Realtime 22.04 LTS
- linux-intel-iot-realtime Fixed in 5.15.0-1023.28Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-realtime Fixed in 5.15.0-1034.37Available with Ubuntu Pro: https://ubuntu.com/pro
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.