01 Record
CVE-2022-32250
net/netfilter/nf_tables_api.c in the Linux kernel through 5.18.1 allows a local user (able to create user/net namespaces) to escalate privileges to root because an incorrect NFT_STATEFUL_EXPR check
UnratedPUBLISHEDCNA: mitre
CNA base scoreUnratedNo CNA CVSS vector
02 Description
net/netfilter/nf_tables_api.c in the Linux kernel through 5.18.1 allows a local user (able to create user/net namespaces) to escalate privileges to root because an incorrect NFT_STATEFUL_EXPR check
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 2.91% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 86.8% 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 2026-10-14.
- Red Hat severity
- Important. 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
- 2022-06-02 20:51Z4 YR AGO
- Last updated
- 2026-10-14 16:53Z15 DAYS AGO
- Reserved
- 2022-06-02
- Assigning CNA
- mitre
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- CWE-416Use After FreeVariant
- Data version
- 5.2
- Document digest
- ba9bac28d8e1393e96931433689aa3c117a88e303b9e6dab1b9d1a812c3dc36b
05 Affected products
VendorProductVersionsPlatforms
06 References
- www.openwall.comhttps://www.openwall.com/lists/oss-security/2022/05/31/1
- git.kernel.orghttps://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/net/netfilter?id=520778042ccca019f3ffa136dd0ca565c486cedd
- www.openwall.com[oss-security] 20220603 Re: Linux Kernel use-after-free write in netfilterhttp://www.openwall.com/lists/oss-security/2022/06/03/1
- www.openwall.com[oss-security] 20220604 Re: Linux Kernel use-after-free write in netfilterhttp://www.openwall.com/lists/oss-security/2022/06/04/1
- lists.fedoraproject.orghttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MO6Y3TC4WUUNKRP7OQA26OVTZTPCS6F2/
- lists.fedoraproject.orghttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UIZTJOJCVVEJVOQSCHE6IJQKMPISHQ5L/
- www.debian.orghttps://www.debian.org/security/2022/dsa-5161
- bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=2092427
- www.openwall.com[oss-security] 20220620 Re: Linux Kernel use-after-free write in netfilterhttp://www.openwall.com/lists/oss-security/2022/06/20/1
- lists.debian.org[debian-lts-announce] 20220701 [SECURITY] [DLA 3065-1] linux security updatehttps://lists.debian.org/debian-lts-announce/2022/07/msg00000.html
- www.openwall.com[oss-security] 20220703 Re: Linux kernel: Netfilter heap buffer overflow: Is this CVE-2022-32250?http://www.openwall.com/lists/oss-security/2022/07/03/6
- www.openwall.com[oss-security] 20220703 Linux kernel: Netfilter heap buffer overflow: Is this CVE-2022-32250?http://www.openwall.com/lists/oss-security/2022/07/03/5
- www.debian.orgDSA-5173https://www.debian.org/security/2022/dsa-5173
- security.netapp.comhttps://security.netapp.com/advisory/ntap-20220715-0005/
- www.openwall.com[oss-security] 20220825 Re: Linux Kernel use-after-free write in netfilterhttp://www.openwall.com/lists/oss-security/2022/08/25/1
- blog.theori.iohttps://blog.theori.io/research/CVE-2022-32250-linux-kernel-lpe-2022/
- github.comhttps://github.com/theori-io/CVE-2022-32250-exploit
- www.openwall.com[oss-security] 20220902 Re: Linux Kernel use-after-free write in netfilterhttp://www.openwall.com/lists/oss-security/2022/09/02/9
- cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/html/ssa-794697.html
07 Fixed in
AlmaLinux 8
- bpftool Fixed in 4.18.0-372.19.1.el8_6
- kernel Fixed in 4.18.0-372.19.1.el8_6
- kernel-abi-stablelists Fixed in 4.18.0-372.19.1.el8_6
- kernel-core Fixed in 4.18.0-372.19.1.el8_6
- kernel-cross-headers Fixed in 4.18.0-372.19.1.el8_6
- kernel-debug Fixed in 4.18.0-372.19.1.el8_6
- kernel-debug-core Fixed in 4.18.0-372.19.1.el8_6
- kernel-debug-devel Fixed in 4.18.0-372.19.1.el8_6
- kernel-debug-modules Fixed in 4.18.0-372.19.1.el8_6
- kernel-debug-modules-extra Fixed in 4.18.0-372.19.1.el8_6
- kernel-devel Fixed in 4.18.0-372.19.1.el8_6
- kernel-doc Fixed in 4.18.0-372.19.1.el8_6
- kernel-headers Fixed in 4.18.0-372.19.1.el8_6
- kernel-modules Fixed in 4.18.0-372.19.1.el8_6
- kernel-modules-extra Fixed in 4.18.0-372.19.1.el8_6
- kernel-rt Fixed in 4.18.0-372.19.1.rt7.176.el8_6
- kernel-rt-core Fixed in 4.18.0-372.19.1.rt7.176.el8_6
- kernel-rt-debug Fixed in 4.18.0-372.19.1.rt7.176.el8_6
- kernel-rt-debug-core Fixed in 4.18.0-372.19.1.rt7.176.el8_6
- kernel-rt-debug-devel Fixed in 4.18.0-372.19.1.rt7.176.el8_6
- kernel-rt-debug-kvm Fixed in 4.18.0-372.19.1.rt7.176.el8_6
- kernel-rt-debug-modules Fixed in 4.18.0-372.19.1.rt7.176.el8_6
- kernel-rt-debug-modules-extra Fixed in 4.18.0-372.19.1.rt7.176.el8_6
- kernel-rt-devel Fixed in 4.18.0-372.19.1.rt7.176.el8_6
- kernel-rt-kvm Fixed in 4.18.0-372.19.1.rt7.176.el8_6
- kernel-rt-modules Fixed in 4.18.0-372.19.1.rt7.176.el8_6
- kernel-rt-modules-extra Fixed in 4.18.0-372.19.1.rt7.176.el8_6
- kernel-tools Fixed in 4.18.0-372.19.1.el8_6
- kernel-tools-libs Fixed in 4.18.0-372.19.1.el8_6
- kernel-tools-libs-devel Fixed in 4.18.0-372.19.1.el8_6
- perf Fixed in 4.18.0-372.19.1.el8_6
- python3-perf Fixed in 4.18.0-372.19.1.el8_6
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 4.18.0-372.19.1.el8_6
- kernel Fixed in 4.18.0-372.19.1.el8_6
- kernel-abi-stablelists Fixed in 4.18.0-372.19.1.el8_6
- kernel-core Fixed in 4.18.0-372.19.1.el8_6
- kernel-cross-headers Fixed in 4.18.0-372.19.1.el8_6
- kernel-debug Fixed in 4.18.0-372.19.1.el8_6
- kernel-debug-core Fixed in 4.18.0-372.19.1.el8_6
- kernel-debug-devel Fixed in 4.18.0-372.19.1.el8_6
- kernel-debug-modules Fixed in 4.18.0-372.19.1.el8_6
- kernel-debug-modules-extra Fixed in 4.18.0-372.19.1.el8_6
- kernel-devel Fixed in 4.18.0-372.19.1.el8_6
- kernel-doc Fixed in 4.18.0-372.19.1.el8_6
- kernel-headers Fixed in 4.18.0-372.19.1.el8_6
- kernel-modules Fixed in 4.18.0-372.19.1.el8_6
- kernel-modules-extra Fixed in 4.18.0-372.19.1.el8_6
- kernel-rt Fixed in 4.18.0-372.19.1.rt7.176.el8_6
- kernel-rt-core Fixed in 4.18.0-372.19.1.rt7.176.el8_6
- kernel-rt-debug Fixed in 4.18.0-372.19.1.rt7.176.el8_6
- kernel-rt-debug-core Fixed in 4.18.0-372.19.1.rt7.176.el8_6
- kernel-rt-debug-devel Fixed in 4.18.0-372.19.1.rt7.176.el8_6
- kernel-rt-debug-kvm Fixed in 4.18.0-372.19.1.rt7.176.el8_6
- kernel-rt-debug-modules Fixed in 4.18.0-372.19.1.rt7.176.el8_6
- kernel-rt-debug-modules-extra Fixed in 4.18.0-372.19.1.rt7.176.el8_6
- kernel-rt-devel Fixed in 4.18.0-372.19.1.rt7.176.el8_6
- kernel-rt-kvm Fixed in 4.18.0-372.19.1.rt7.176.el8_6
- kernel-rt-modules Fixed in 4.18.0-372.19.1.rt7.176.el8_6
- kernel-rt-modules-extra Fixed in 4.18.0-372.19.1.rt7.176.el8_6
- kernel-tools Fixed in 4.18.0-372.19.1.el8_6
- kernel-tools-libs Fixed in 4.18.0-372.19.1.el8_6
- kernel-tools-libs-devel Fixed in 4.18.0-372.19.1.el8_6
- perf Fixed in 4.18.0-372.19.1.el8_6
- python3-perf Fixed in 4.18.0-372.19.1.el8_6
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 5.18.2-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- linux Fixed in 5.18.2-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- linux Fixed in 5.18.2-1
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 Fixed in 4.15.0-184.194
- linux-aws Fixed in 4.15.0-1133.143
- linux-aws-5.0 No fix yet
- linux-aws-5.3 No fix yet
- linux-aws-5.4 Fixed in 5.4.0-1078.84~18.04.1
- linux-azure No fix yet
- linux-azure-4.15 Fixed in 4.15.0-1142.156
- linux-azure-5.3 No fix yet
- linux-azure-5.4 Fixed in 5.4.0-1083.87~18.04.1
- linux-azure-edge No fix yet
- linux-dell300x Fixed in 4.15.0-1047.52
- linux-gcp No fix yet
- linux-gcp-4.15 Fixed in 4.15.0-1127.142
- linux-gcp-5.3 No fix yet
- linux-gcp-5.4 Fixed in 5.4.0-1078.84~18.04.1
- linux-gke-4.15 No fix yet
- linux-gke-5.4 Fixed in 5.4.0-1074.79~18.04.1
- linux-gkeop-5.4 Fixed in 5.4.0-1046.48~18.04.1
- linux-hwe No fix yet
- linux-hwe-5.4 Fixed in 5.4.0-117.132~18.04.1
- linux-hwe-edge No fix yet
- linux-ibm-5.4 Fixed in 5.4.0-1028.32~18.04.1
- linux-kvm Fixed in 4.15.0-1119.123
- linux-oem No fix yet
- linux-oracle Fixed in 4.15.0-1098.108
- linux-oracle-5.0 No fix yet
- linux-oracle-5.3 No fix yet
- linux-oracle-5.4 Fixed in 5.4.0-1076.83~18.04.1
- linux-raspi-5.4 Fixed in 5.4.0-1065.75~18.04.1
- linux-raspi2 Fixed in 4.15.0-1114.122
- linux-snapdragon Fixed in 4.15.0-1132.142
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 5.4.0-117.132
- linux-aws Fixed in 5.4.0-1078.84
- linux-aws-5.11 No fix yet
- linux-aws-5.13 Fixed in 5.13.0-1028.31~20.04.1
- linux-aws-5.8 No fix yet
- linux-azure Fixed in 5.4.0-1083.87
- linux-azure-5.11 No fix yet
- linux-azure-5.13 Fixed in 5.13.0-1028.33~20.04.1
- linux-azure-5.15 Fixed in 5.15.0-1014.17~20.04.1
- linux-azure-5.8 No fix yet
- linux-bluefield Fixed in 5.4.0-1040.44
- linux-gcp Fixed in 5.4.0-1078.84
- linux-gcp-5.11 No fix yet
- linux-gcp-5.13 Fixed in 5.13.0-1030.36~20.04.1
- linux-gcp-5.15 Fixed in 5.15.0-1013.18~20.04.1
- linux-gcp-5.8 No fix yet
- linux-gke Fixed in 5.4.0-1074.79
- linux-gkeop Fixed in 5.4.0-1046.48
- linux-hwe-5.11 No fix yet
- linux-hwe-5.13 Fixed in 5.13.0-48.54~20.04.1
- linux-hwe-5.15 Fixed in 5.15.0-41.44~20.04.1
- linux-hwe-5.8 No fix yet
- linux-ibm Fixed in 5.4.0-1026.29
- linux-intel-5.13 Fixed in 5.13.0-1014.15
- linux-intel-iotg-5.15 Fixed in 5.15.0-1008.11~20.04.1
- linux-iot Fixed in 5.4.0-1004.6
- linux-kvm Fixed in 5.4.0-1068.72
- linux-lowlatency-hwe-5.15 Fixed in 5.15.0-42.45~20.04.1
- linux-oem-5.10 No fix yet
- linux-oem-5.13 No fix yet
- linux-oem-5.14 Fixed in 5.14.0-1042.47
- linux-oem-5.6 No fix yet
- linux-oracle Fixed in 5.4.0-1076.83
- linux-oracle-5.11 No fix yet
- linux-oracle-5.13 Fixed in 5.13.0-1033.39~20.04.1
- linux-oracle-5.15 Fixed in 5.15.0-1013.17~20.04.1
- linux-oracle-5.8 No fix yet
- linux-raspi Fixed in 5.4.0-1065.75
- linux-raspi2 No fix yet
- linux-riscv No fix yet
2 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 5.15.0-37.39
- linux-aws Fixed in 5.15.0-1011.14
- linux-azure Fixed in 5.15.0-1010.12
- linux-gcp Fixed in 5.15.0-1008.12
- linux-gke Fixed in 5.15.0-1008.10
- linux-ibm Fixed in 5.15.0-1007.8
- linux-intel-iot-realtime No fix yet
- linux-intel-iotg Fixed in 5.15.0-1008.11
- linux-kvm Fixed in 5.15.0-1010.11
- linux-lowlatency Fixed in 5.15.0-37.39
- linux-oem-5.17 Fixed in 5.17.0-1011.12
- linux-oem-6.0 No fix yet
- linux-oracle Fixed in 5.15.0-1009.12
- linux-raspi Fixed in 5.15.0-1011.13
- linux-realtime No fix yet
- linux-riscv Fixed in 5.15.0-1014.16
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 Pro 14.04 LTS
- linux-aws Fixed in 4.4.0-1107.113Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-azure Fixed in 4.15.0-1142.156~14.04.1Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-lts-xenial Fixed in 4.4.0-227.261~14.04.1Available 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 4.4.0-227.261Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-aws Fixed in 4.4.0-1143.158Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-aws-hwe Fixed in 4.15.0-1133.143~16.04.1Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-azure Fixed in 4.15.0-1142.156~16.04.1Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-gcp Fixed in 4.15.0-1127.142~16.04.1Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-hwe Fixed in 4.15.0-184.194~16.04.1Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-kvm Fixed in 4.4.0-1108.118Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-oracle Fixed in 4.15.0-1098.108~16.04.1Available 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 FIPS-updates 16.04 LTS
- linux-fips Fixed in 4.4.0-1077.84Available 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 4.15.0-2072.76Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-azure-fips Fixed in 4.15.0-2053.58Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-fips Fixed in 4.15.0-1090.100Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-gcp-fips Fixed in 4.15.0-2037.41Available 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 5.4.0-1078.84+fips1Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-azure-fips Fixed in 5.4.0-1083.87+fips1Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-fips Fixed in 5.4.0-1054.61Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-gcp-fips Fixed in 5.4.0-1078.84+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-realtime Fixed in 5.15.0-1014.14Available 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.