{"answers":{"affected":"It affects 2 products.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-2588 exists.","fix":"Apply the vendor's patch.","what":"CVE-2022-2588 is a medium-severity use after free vulnerability in Canonical Ubuntu Linux, published on 8 Jan 2024. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2022-2588 and fix it if it is affected.\n\nWhat it is: CVE-2022-2588 is a medium-severity use after free vulnerability in Canonical Ubuntu Linux, published on 8 Jan 2024. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-2588 exists.\n\nAffected product: Canonical Ubuntu Linux. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2022-2588/ (Markdown: https://insights.sbomify.com/CVE-2022-2588/index.md)","id":"CVE-2022-2588","markdown":"https://insights.sbomify.com/CVE-2022-2588/index.md","name":"CVE-2022-2588","record":{"aliases":["AZL-33261","DEBIAN-CVE-2022-2588","RHSA-2022:6875","RHSA-2022:6978","RHSA-2022:7137","RHSA-2022:7146","RHSA-2022:7171","RHSA-2022:7344","RHSA-2022:7885","RHSA-2023:4022","RHSA-2023:4023","UBUNTU-CVE-2022-2588","USN-5588-1","openSUSE-SU-2024:12305-1"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["code_execution","privilege_escalation"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel","requires_auth":"low_privilege","summary":"A use-after-free flaw in the Linux kernel cls_route filter allows local attackers to execute arbitrary code or escalate privileges.","user_interaction":"not_required","vuln_class":"use_after_free"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"canonical","cpe":[{"product":"ubuntu_linux","vendor":"canonical"},{"product":"linux_kernel","vendor":"linux"}],"cvss":{"score":5.3,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:H","version":"3.1"},"cwes":[{"id":"CWE-415","name":"Double Free"},{"id":"CWE-416","name":"Use After Free"}],"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.","ecosystems":["Red Hat:enterprise_linux:7::server","Red Hat:enterprise_linux:8::baseos","Red Hat:rhel_aus:7.4::server","Red Hat:rhel_aus:7.6::server","Red Hat:rhel_aus:7.7::server","Red Hat:rhel_e4s:7.6::server","Red Hat:rhel_e4s:7.7::server","Red Hat:rhel_e4s:8.1::baseos","Red Hat:rhel_e4s:8.2::baseos","Red Hat:rhel_eus:8.4::baseos","Red Hat:rhel_tus:7.6::server","Red Hat:rhel_tus:7.7::server","openSUSE:Tumbleweed"],"exploits":{"exploitdb":0,"first_seen":"2022-08-11","github_poc":9,"max_poc_stars":488,"metasploit":0,"nuclei":0,"refs":[{"date":"2022-08-11T06:01:24Z","kind":"github_poc","ref":"https://github.com/Markakd/CVE-2022-2588","stars":488,"title":"exploit for CVE-2022-2588"},{"date":"2022-12-04T22:10:57Z","kind":"github_poc","ref":"https://github.com/BassamGraini/CVE-2022-2588","stars":12,"title":null},{"date":"2023-03-02T07:45:22Z","kind":"github_poc","ref":"https://github.com/veritas501/CVE-2022-2588","stars":11,"title":"CVE-2022-2588"},{"date":"2022-08-23T13:23:29Z","kind":"github_poc","ref":"https://github.com/pirenga/2022-LPE-UAF","stars":6,"title":"CVE-2022-2588,CVE-2022-2586,CVE-2022-2585 "},{"date":"2022-08-24T02:20:35Z","kind":"github_poc","ref":"https://github.com/konoha279/2022-LPE-UAF","stars":5,"title":"CVE-2022-2588,CVE-2022-2586,CVE-2022-2585 "},{"date":"2026-02-23T17:33:28Z","kind":"github_poc","ref":"https://github.com/LSinus/CacheMeIfYouCan","stars":2,"title":"SLUBStick exploitation of CVE-2022-2588. Converting a DF into a cross-cache arbitrary memory R/W primitive through PTE manipulation."},{"date":"2022-08-22T23:42:00Z","kind":"github_poc","ref":"https://github.com/ASkyeye/2022-LPE-UAF","stars":1,"title":"CVE-2022-2588"},{"date":"2023-03-09T21:29:56Z","kind":"github_poc","ref":"https://github.com/dom4570/CVE-2022-2588","stars":0,"title":null}],"tier":"weaponised"},"has_fix":true,"headline":"Use after free in linux","id":"CVE-2022-2588","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"canonical:ubuntu_linux","products":["canonical:ubuntu_linux","linux:linux_kernel"],"type":"use_after_free","year":"2022"},"n_packages":204,"n_references":15,"next":{"headline":"Cross-site Scripting (XSS) - Reflected in beancount/fava","id":"CVE-2022-2589"},"packages":[{"ecosystem":"Red Hat:enterprise_linux:7::server","fixed":["0:1-3.el7"],"introduced":["0"],"last_affected":[],"package":"kpatch-patch-3_10_0-1160_62_1","purl":"pkg:rpm/redhat/kpatch-patch-3_10_0-1160_62_1","source":"RHSA-2022:7344"},{"ecosystem":"Red Hat:enterprise_linux:7::server","fixed":["0:1-3.el7"],"introduced":["0"],"last_affected":[],"package":"kpatch-patch-3_10_0-1160_62_1-debuginfo","purl":"pkg:rpm/redhat/kpatch-patch-3_10_0-1160_62_1-debuginfo","source":"RHSA-2022:7344"},{"ecosystem":"Red Hat:enterprise_linux:7::server","fixed":["0:1-2.el7"],"introduced":["0"],"last_affected":[],"package":"kpatch-patch-3_10_0-1160_66_1","purl":"pkg:rpm/redhat/kpatch-patch-3_10_0-1160_66_1","source":"RHSA-2022:7344"},{"ecosystem":"Red Hat:enterprise_linux:7::server","fixed":["0:1-2.el7"],"introduced":["0"],"last_affected":[],"package":"kpatch-patch-3_10_0-1160_66_1-debuginfo","purl":"pkg:rpm/redhat/kpatch-patch-3_10_0-1160_66_1-debuginfo","source":"RHSA-2022:7344"},{"ecosystem":"Red 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Bypass","id":"CVE-2020-11651","kev_date_added":"2021-11-03","published":"2020-04-30"},{"cvss_score":9.8,"headline":"OpenSMTPD Remote Code Execution","id":"CVE-2020-7247","kev_date_added":"2022-03-25","published":"2020-01-29"},{"cvss_score":9.8,"headline":"Exim Out-of-bounds Write","id":"CVE-2019-16928","kev_date_added":"2022-03-03","published":"2019-09-27"},{"cvss_score":9.8,"headline":"Exim Buffer Overflow","id":"CVE-2018-6789","kev_date_added":"2021-11-03","published":"2018-02-08"},{"cvss_score":9.8,"headline":"Oracle Java SE and Java SE Embedded Remote Code Execution","id":"CVE-2015-2590","kev_date_added":"2022-03-03","published":"2015-07-16"},{"cvss_score":9.8,"headline":"Oracle JRE Remote Code Execution","id":"CVE-2013-0422","kev_date_added":"2022-05-25","published":"2013-01-10"},{"cvss_score":9.8,"headline":"Oracle Java SE Runtime Environment (JRE) Arbitrary Code Execution","id":"CVE-2011-3544","kev_date_added":"2022-03-03","published":"2011-10-19"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"Red Hat","prefix":"RHSA"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":"no","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-10-14","vendors":["The Linux Kernel Organization"]},"summary":"A use-after-free flaw in the Linux kernel cls_route filter allows local attackers to execute arbitrary code or escalate privileges.","url":"https://insights.sbomify.com/CVE-2022-2588/"}