CVE-2022-2588
It was discovered that the cls_route filter implementation in the Linux kernel would not remove an old filter from the hashtable before freeing it if its handle had the value 0.
02 Description
It was discovered that the cls_route filter implementation in the Linux kernel would not remove an old filter from the hashtable before freeing it if its handle had the value 0.
03 Exploitation and scoring
- Exploitation
- Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.
- SSVC decision
- ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
- AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
- Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
- EPSS probability
- 5.87% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 93.0% 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
- 2024-01-08 17:50Z2 YR AGO
- Last updated
- 2026-10-14 13:25Z15 DAYS AGO
- Reserved
- 2022-07-29
- Assigning CNA
- canonical
- Record state
- PUBLISHED
- Severity
- Medium (CVSS 5.3)
- CNA CVSS vector
- CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:H
- Weaknesses
- Data version
- 5.2
- Document digest
- 21076a1aa60cc7d09306659076f10f474cdf79170d7d75df3e35e893571319b4
05 Affected products
06 References
- ubuntu.comhttps://ubuntu.com/security/notices/USN-5565-1
- ubuntu.comhttps://ubuntu.com/security/notices/USN-5562-1
- www.openwall.comhttps://www.openwall.com/lists/oss-security/2022/08/09/6
- ubuntu.comhttps://ubuntu.com/security/notices/USN-5582-1
- cve.mitre.orghttps://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-2588
- ubuntu.comhttps://ubuntu.com/security/notices/USN-5564-1
- ubuntu.comhttps://ubuntu.com/security/notices/USN-5566-1
- www.zerodayinitiative.comhttps://www.zerodayinitiative.com/advisories/ZDI-22-1117/
- ubuntu.comhttps://ubuntu.com/security/notices/USN-5588-1
- ubuntu.comhttps://ubuntu.com/security/notices/USN-5560-1
- github.comhttps://github.com/Markakd/CVE-2022-2588
- ubuntu.comhttps://ubuntu.com/security/notices/USN-5567-1
- ubuntu.comhttps://ubuntu.com/security/notices/USN-5560-2
- lore.kernel.orghttps://lore.kernel.org/netdev/20220809170518.164662-1-cascardo@canonical.com/T/#u
- ubuntu.comhttps://ubuntu.com/security/notices/USN-5557-1
- cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/html/ssa-419740.html
- cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/html/ssa-831302.html
- cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/html/ssa-794697.html
- cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/html/ssa-769027.html
07 Fixed in
AlmaLinux 8
- bpftool Fixed in 4.18.0-372.32.1.el8_6
- kernel Fixed in 4.18.0-372.32.1.el8_6
- kernel-abi-stablelists Fixed in 4.18.0-372.32.1.el8_6
- kernel-core Fixed in 4.18.0-372.32.1.el8_6
- kernel-cross-headers Fixed in 4.18.0-372.32.1.el8_6
- kernel-debug Fixed in 4.18.0-372.32.1.el8_6
- kernel-debug-core Fixed in 4.18.0-372.32.1.el8_6
- kernel-debug-devel Fixed in 4.18.0-372.32.1.el8_6
- kernel-debug-modules Fixed in 4.18.0-372.32.1.el8_6
- kernel-debug-modules-extra Fixed in 4.18.0-372.32.1.el8_6
- kernel-devel Fixed in 4.18.0-372.32.1.el8_6
- kernel-doc Fixed in 4.18.0-372.32.1.el8_6
- kernel-headers Fixed in 4.18.0-372.32.1.el8_6
- kernel-modules Fixed in 4.18.0-372.32.1.el8_6
- kernel-modules-extra Fixed in 4.18.0-372.32.1.el8_6
- kernel-rt Fixed in 4.18.0-372.32.1.rt7.189.el8_6
- kernel-rt-core Fixed in 4.18.0-372.32.1.rt7.189.el8_6
- kernel-rt-debug Fixed in 4.18.0-372.32.1.rt7.189.el8_6
- kernel-rt-debug-core Fixed in 4.18.0-372.32.1.rt7.189.el8_6
- kernel-rt-debug-devel Fixed in 4.18.0-372.32.1.rt7.189.el8_6
- kernel-rt-debug-kvm Fixed in 4.18.0-372.32.1.rt7.189.el8_6
- kernel-rt-debug-modules Fixed in 4.18.0-372.32.1.rt7.189.el8_6
- kernel-rt-debug-modules-extra Fixed in 4.18.0-372.32.1.rt7.189.el8_6
- kernel-rt-devel Fixed in 4.18.0-372.32.1.rt7.189.el8_6
- kernel-rt-kvm Fixed in 4.18.0-372.32.1.rt7.189.el8_6
- kernel-rt-modules Fixed in 4.18.0-372.32.1.rt7.189.el8_6
- kernel-rt-modules-extra Fixed in 4.18.0-372.32.1.rt7.189.el8_6
- kernel-tools Fixed in 4.18.0-372.32.1.el8_6
- kernel-tools-libs Fixed in 4.18.0-372.32.1.el8_6
- kernel-tools-libs-devel Fixed in 4.18.0-372.32.1.el8_6
- perf Fixed in 4.18.0-372.32.1.el8_6
- python3-perf Fixed in 4.18.0-372.32.1.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 4.18.0-372.32.1.el8_6
- kernel Fixed in 4.18.0-372.32.1.el8_6
- kernel-abi-stablelists Fixed in 4.18.0-372.32.1.el8_6
- kernel-core Fixed in 4.18.0-372.32.1.el8_6
- kernel-cross-headers Fixed in 4.18.0-372.32.1.el8_6
- kernel-debug Fixed in 4.18.0-372.32.1.el8_6
- kernel-debug-core Fixed in 4.18.0-372.32.1.el8_6
- kernel-debug-devel Fixed in 4.18.0-372.32.1.el8_6
- kernel-debug-modules Fixed in 4.18.0-372.32.1.el8_6
- kernel-debug-modules-extra Fixed in 4.18.0-372.32.1.el8_6
- kernel-devel Fixed in 4.18.0-372.32.1.el8_6
- kernel-doc Fixed in 4.18.0-372.32.1.el8_6
- kernel-headers Fixed in 4.18.0-372.32.1.el8_6
- kernel-modules Fixed in 4.18.0-372.32.1.el8_6
- kernel-modules-extra Fixed in 4.18.0-372.32.1.el8_6
- kernel-rt Fixed in 4.18.0-372.32.1.rt7.189.el8_6
- kernel-rt-core Fixed in 4.18.0-372.32.1.rt7.189.el8_6
- kernel-rt-debug Fixed in 4.18.0-372.32.1.rt7.189.el8_6
- kernel-rt-debug-core Fixed in 4.18.0-372.32.1.rt7.189.el8_6
- kernel-rt-debug-devel Fixed in 4.18.0-372.32.1.rt7.189.el8_6
- kernel-rt-debug-kvm Fixed in 4.18.0-372.32.1.rt7.189.el8_6
- kernel-rt-debug-modules Fixed in 4.18.0-372.32.1.rt7.189.el8_6
- kernel-rt-debug-modules-extra Fixed in 4.18.0-372.32.1.rt7.189.el8_6
- kernel-rt-devel Fixed in 4.18.0-372.32.1.rt7.189.el8_6
- kernel-rt-kvm Fixed in 4.18.0-372.32.1.rt7.189.el8_6
- kernel-rt-modules Fixed in 4.18.0-372.32.1.rt7.189.el8_6
- kernel-rt-modules-extra Fixed in 4.18.0-372.32.1.rt7.189.el8_6
- kernel-tools Fixed in 4.18.0-372.32.1.el8_6
- kernel-tools-libs Fixed in 4.18.0-372.32.1.el8_6
- kernel-tools-libs-devel Fixed in 4.18.0-372.32.1.el8_6
- perf Fixed in 4.18.0-372.32.1.el8_6
- python3-perf Fixed in 4.18.0-372.32.1.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 5.18.16-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- linux Fixed in 5.18.16-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- linux Fixed in 5.18.16-1
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 4.15.0-191.202
- linux-aws Fixed in 4.15.0-1139.150
- linux-aws-5.0 No fix yet
- linux-aws-5.3 No fix yet
- linux-aws-5.4 Fixed in 5.4.0-1083.90~18.04.1
- linux-azure No fix yet
- linux-azure-4.15 Fixed in 4.15.0-1149.164
- linux-azure-5.3 No fix yet
- linux-azure-5.4 Fixed in 5.4.0-1089.94~18.04.1
- linux-azure-edge No fix yet
- linux-dell300x Fixed in 4.15.0-1051.56
- linux-gcp No fix yet
- linux-gcp-4.15 Fixed in 4.15.0-1134.150
- linux-gcp-5.3 No fix yet
- linux-gcp-5.4 Fixed in 5.4.0-1086.94~18.04.1
- linux-gke-4.15 No fix yet
- linux-gke-5.4 Fixed in 5.4.0-1080.86~18.04.1
- linux-gkeop-5.4 Fixed in 5.4.0-1051.54~18.04.1
- linux-hwe No fix yet
- linux-hwe-5.4 Fixed in 5.4.0-124.140~18.04.1
- linux-hwe-edge No fix yet
- linux-ibm-5.4 Fixed in 5.4.0-1031.35~18.04.1
- linux-kvm Fixed in 4.15.0-1125.130
- linux-oem No fix yet
- linux-oracle Fixed in 4.15.0-1104.115
- linux-oracle-5.0 No fix yet
- linux-oracle-5.3 No fix yet
- linux-oracle-5.4 Fixed in 5.4.0-1081.89~18.04.1
- linux-raspi-5.4 Fixed in 5.4.0-1068.78~18.04.1
- linux-raspi2 Fixed in 4.15.0-1117.125
- linux-snapdragon Fixed in 4.15.0-1135.145
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 5.4.0-124.140
- linux-aws Fixed in 5.4.0-1083.90
- linux-aws-5.11 No fix yet
- linux-aws-5.13 No fix yet
- linux-aws-5.15 Fixed in 5.15.0-1017.21~20.04.1
- linux-aws-5.8 No fix yet
- linux-azure Fixed in 5.4.0-1089.94
- linux-azure-5.11 No fix yet
- linux-azure-5.13 No fix yet
- linux-azure-5.15 Fixed in 5.15.0-1017.20~20.04.1
- linux-azure-5.8 No fix yet
- linux-bluefield Fixed in 5.4.0-1044.49
- linux-gcp Fixed in 5.4.0-1086.94
- linux-gcp-5.11 No fix yet
- linux-gcp-5.13 No fix yet
- linux-gcp-5.15 Fixed in 5.15.0-1016.21~20.04.1
- linux-gcp-5.8 No fix yet
- linux-gke Fixed in 5.4.0-1080.86
- linux-gke-5.15 Fixed in 5.15.0-1014.17~20.04.1
- linux-gkeop Fixed in 5.4.0-1051.54
- linux-hwe-5.11 No fix yet
- linux-hwe-5.13 No fix yet
- linux-hwe-5.15 Fixed in 5.15.0-46.49~20.04.1
- linux-hwe-5.8 No fix yet
- linux-ibm Fixed in 5.4.0-1031.35
- linux-intel-5.13 No fix yet
- linux-intel-iotg-5.15 Fixed in 5.15.0-1015.20~20.04.2
- linux-iot Fixed in 5.4.0-1004.6
- linux-kvm Fixed in 5.4.0-1073.78
- linux-lowlatency-hwe-5.15 Fixed in 5.15.0-46.49~20.04.1
- linux-oem-5.10 No fix yet
- linux-oem-5.13 No fix yet
- linux-oem-5.14 Fixed in 5.14.0-1048.55
- linux-oem-5.6 No fix yet
- linux-oracle Fixed in 5.4.0-1081.89
- linux-oracle-5.11 No fix yet
- linux-oracle-5.13 No fix yet
- linux-oracle-5.15 Fixed in 5.15.0-1016.20~20.04.1
- linux-oracle-5.8 No fix yet
- linux-raspi Fixed in 5.4.0-1068.78
5 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 5.15.0-46.49
- linux-aws Fixed in 5.15.0-1017.21
- linux-azure Fixed in 5.15.0-1017.20
- linux-gcp Fixed in 5.15.0-1016.21
- linux-gke Fixed in 5.15.0-1014.17
- linux-gkeop Fixed in 5.15.0-1002.4
- linux-ibm Fixed in 5.15.0-1012.14
- linux-intel-iot-realtime No fix yet
- linux-intel-iotg Fixed in 5.15.0-1013.17
- linux-kvm Fixed in 5.15.0-1016.19
- linux-lowlatency Fixed in 5.15.0-46.49
- linux-nvidia Fixed in 5.15.0-1007.7
- linux-oem-5.17 Fixed in 5.17.0-1015.16
- linux-oracle Fixed in 5.15.0-1016.20
- linux-raspi Fixed in 5.15.0-1013.15
- linux-realtime No fix yet
- linux-riscv Fixed in 5.15.0-1017.19
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 Fixed in 3.13.0-191.242Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-aws Fixed in 4.4.0-1111.117Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-azure Fixed in 4.15.0-1149.164~14.04.1Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-lts-xenial Fixed in 4.4.0-231.265~14.04.1Available 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 4.4.0-231.265Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-aws Fixed in 4.4.0-1147.162Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-aws-hwe Fixed in 4.15.0-1139.150~16.04.1Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-azure Fixed in 4.15.0-1149.164~16.04.1Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-gcp Fixed in 4.15.0-1134.150~16.04.2Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-hwe Fixed in 4.15.0-191.202~16.04.1Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-kvm Fixed in 4.4.0-1112.122Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-oracle Fixed in 4.15.0-1104.115~16.04.1Available 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 20.04 LTS
- linux-azure-fde-5.15 Fixed in 5.15.0-1114.123~20.04.1Available 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 4.4.0-1081.88Available 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 4.15.0-2078.83Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-azure-fips Fixed in 4.15.0-2059.65Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-fips Fixed in 4.15.0-1096.107Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-gcp-fips Fixed in 4.15.0-2043.48Available 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 5.4.0-1083.90+fips1Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-azure-fips Fixed in 5.4.0-1089.94+fips1Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-fips Fixed in 5.4.0-1059.67Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-gcp-fips Fixed in 5.4.0-1086.94+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 5.15.0-1019.19Available 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.