{"affected":[{"affectedData":[{"defaultStatus":"unaffected","packageName":"kernel","product":"Linux Kernel","repo":"https://git.kernel.org","vendor":"Linux","versions":[{"lessThan":"6.3","status":"affected","version":"5.13","versionType":"custom"}]}],"source":"cve-coordination@google.com"}],"configurations":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","matchCriteriaId":"06068228-04BE-4FC5-B0C2-1B9633967D1C","versionEndExcluding":"5.15.104","versionStartIncluding":"5.13","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","matchCriteriaId":"1F1CA6A9-8F4D-408D-9116-868EC067DCD9","versionEndExcluding":"6.1.21","versionStartIncluding":"5.16","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","matchCriteriaId":"4011EC6B-7786-4709-B765-186FA31D6F7F","versionEndExcluding":"6.2.8","versionStartIncluding":"6.2","vulnerable":true}],"negate":false,"operator":"OR"}]}],"cveTags":[],"descriptions":[{"lang":"en","value":"A use-after-free vulnerability in the Linux Kernel Performance Events system can be exploited to achieve local privilege escalation.\n\n\n\nThe perf_group_detach function did not check the event's siblings' attach_state before calling add_event_to_groups(), but remove_on_exec made it possible to call list_del_event() on before detaching from their group, making it possible to use a dangling pointer causing a use-after-free vulnerability.\n\n\n\nWe recommend upgrading past commit fd0815f632c24878e325821943edccc7fde947a2."}],"id":"CVE-2023-2235","lastModified":"2026-08-07T19:17:32.960","metrics":{"cvssMetricV31":[{"cvssData":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"HIGH","baseScore":7.8,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"exploitabilityScore":1.8,"impactScore":5.9,"source":"cve-coordination@google.com","type":"Secondary"},{"cvssData":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"HIGH","baseScore":7.8,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"exploitabilityScore":1.8,"impactScore":5.9,"source":"nvd@nist.gov","type":"Primary"}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"id":"CVE-2023-2235","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"total"}],"role":"CISA Coordinator","timestamp":"2025-03-05T18:38:34.865484Z","version":"2.0.3"}}]},"published":"2023-05-01T13:15:44.713","references":[{"source":"cve-coordination@google.com","tags":["Mitigation","Patch"],"url":"https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=fd0815f632c24878e325821943edccc7fde947a2"},{"source":"cve-coordination@google.com","tags":["Patch"],"url":"https://kernel.dance/fd0815f632c24878e325821943edccc7fde947a2"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Mitigation","Patch"],"url":"https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=fd0815f632c24878e325821943edccc7fde947a2"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"],"url":"https://kernel.dance/fd0815f632c24878e325821943edccc7fde947a2"},{"source":"af854a3a-2127-422b-91ae-364da2661108","url":"https://security.netapp.com/advisory/ntap-20230609-0002/"}],"sourceIdentifier":"cve-coordination@google.com","vulnStatus":"Modified","weaknesses":[{"description":[{"lang":"en","value":"CWE-416"}],"source":"cve-coordination@google.com","type":"Secondary"},{"description":[{"lang":"en","value":"CWE-416"}],"source":"nvd@nist.gov","type":"Primary"}]}