{"id":"CVE-2024-36971","published":"2024-06-10T09:15:09Z","modified":"2026-06-17T07:37:30Z","title":"Android Kernel Remote Code Execution Vulnerability","vendor":"Android","product":"Kernel","tier":"core","eol":null,"description":{"text":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: fix __dst_negative_advice() race\n\n__dst_negative_advice() does not enforce proper RCU rules when\nsk->dst_cache must be cleared, leading to possible UAF.\n\nRCU rules are that we must first clear sk->sk_dst_cache,\nthen call dst_release(old_dst).\n\nNote that sk_dst_reset(sk) is implementing this protocol correctly,\nwhile __dst_negative_advice() uses the wrong order.\n\nGiven that ip6_negative_advice() has special logic\nagainst RTF_CACHE, this means each of the three ->negative_advice()\nexisting methods must perform the sk_dst_reset() themselves.\n\nNote the check against NULL dst is centralized in\n__dst_negative_advice(), there is no need to duplicate\nit in various callbacks.\n\nMany thanks to Clement Lecigne for tracking this issue.\n\nThis old bug became visible after the blamed commit, using UDP sockets.","provenance":"source","from":"NVD"},"summary":{"text":"The Android Kernel contains a flaw in the networking code (net) where __dst_negative_advice() clears the socket's destination cache in the wrong RCU order, which can leave a use-after-free condition. An attacker with local access and low privileges, who need not interact with a user, could trigger the use-after-free through the affected socket path to compromise confidentiality, integrity and availability.","provenance":"ai","model":"claude-haiku-5-5","generatedAt":"2026-10-29T07:11:19Z"},"cvss":{"score":7.8,"severity":"HIGH","version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","provenance":"source","from":"NVD"},"epss":{"score":0.02701,"percentile":0.85898,"date":"2026-10-29","provenance":"source"},"kev":{"dateAdded":"2024-08-07","dueDate":"2024-08-28","ransomware":false,"requiredAction":"Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.","notes":"This vulnerability affects a common open-source component, third-party library, or a protocol used by different products. Please check with specific vendors for information on patching status. For more information, please see:   https://source.android.com/docs/security/bulletin/2024-08-01,  https://lore.kernel.org/linux-cve-announce/20240610090330.1347021-2-lee@kernel.org/T/#u ; https://nvd.nist.gov/vuln/detail/CVE-2024-36971","provenance":"source"},"vulncheckKev":{"dateAdded":"2024-08-05","exploitedFirstSeen":"2024-08-05","ransomware":false,"evidence":[{"url":"https://docs.google.com/spreadsheets/d/1lkNJ0uQwbeC1ZTRrxdtuPLCIl7mlUreoKfSIgajnSyY/edit","date":"2024-08-05"},{"url":"https://source.android.com/docs/security/bulletin/2024-08-01","date":"2024-08-05"},{"url":"https://www.cybersecurity-help.cz/vdb/SB20240805114","date":"2024-08-05"},{"url":"https://www.zero-day.cz/database/897/","date":"2024-08-05"},{"url":"https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json","date":"2024-08-07"},{"url":"https://360.net/research/report/#:~:text=PDF-,Download,-Ransomware%20Prevalence%20Report","date":"2025-02-11"},{"url":"https://ti.qianxin.com/uploads/2025/02/21/5c66fbda0feb2714c53f54dcedcd2e43.pdf","date":"2025-02-21"}],"evidenceTotal":7,"provenance":"source"},"exploited":true,"otx":{"pulseCount":50,"pulses":[{"name":"Actively_Exploited_Kev | Oct 30, 2026","url":"https://otx.alienvault.com/pulse/6ae35d889ea92b4ce19c2680","created":"2026-10-29"},{"name":"Actively_Exploited_Kev | Oct 29, 2026","url":"https://otx.alienvault.com/pulse/6ae20c1db17e7057ae7d9ad1","created":"2026-10-28"},{"name":"Actively_Exploited_Kev | Oct 28, 2026","url":"https://otx.alienvault.com/pulse/6ae0ba7e0e2a97ff7b218819","created":"2026-10-27"},{"name":"Actively_Exploited_Kev | Oct 27, 2026","url":"https://otx.alienvault.com/pulse/6adf68b85c3e852f3c111d18","created":"2026-10-26"},{"name":"Actively_Exploited_Kev | Oct 24, 2026","url":"https://otx.alienvault.com/pulse/6adb740e397c3ad4799aa4cd","created":"2026-10-23"},{"name":"Actively_Exploited_Kev | Oct 23, 2026","url":"https://otx.alienvault.com/pulse/6ada236fcfba2dfa730ea482","created":"2026-10-22"},{"name":"Actively_Exploited_Kev | Oct 22, 2026","url":"https://otx.alienvault.com/pulse/6ad8d33a077cbb5cab524d80","created":"2026-10-21"},{"name":"Actively_Exploited_Kev | Oct 21, 2026","url":"https://otx.alienvault.com/pulse/6ad78130c4d1ac2be83a8b6d","created":"2026-10-20"},{"name":"Actively_Exploited_Kev | Oct 20, 2026","url":"https://otx.alienvault.com/pulse/6ad62f63c24a405a3423cc13","created":"2026-10-19"},{"name":"Actively_Exploited_Kev | Oct 19, 2026","url":"https://otx.alienvault.com/pulse/6ad4dda174e5797d0bd238b7","created":"2026-10-18"}],"provenance":"machine"},"cwes":[{"id":"CWE-416","name":"Use After Free"}],"references":[{"url":"https://git.kernel.org/stable/c/051c0bde9f0450a2ec3d62a86d2a0d2fad117f13","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/2295a7ef5c8c49241bff769e7826ef2582e532a6","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/5af198c387128a9d2ddd620b0f0803564a4d4508","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/81dd3c82a456b0015461754be7cb2693991421b4","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/92f1655aa2b2294d0b49925f3b875a634bd3b59e","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/b8af8e6118a6605f0e495a58d591ca94a85a50fc","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/db0082825037794c5dba9959c9de13ca34cc5e72","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/eacb8b195579c174a6d3e12a9690b206eb7f28cf","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/051c0bde9f0450a2ec3d62a86d2a0d2fad117f13","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/2295a7ef5c8c49241bff769e7826ef2582e532a6","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/5af198c387128a9d2ddd620b0f0803564a4d4508","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/81dd3c82a456b0015461754be7cb2693991421b4","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/92f1655aa2b2294d0b49925f3b875a634bd3b59e","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/b8af8e6118a6605f0e495a58d591ca94a85a50fc","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/db0082825037794c5dba9959c9de13ca34cc5e72","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/eacb8b195579c174a6d3e12a9690b206eb7f28cf","tags":["Patch"]},{"url":"https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html","tags":["Mailing List"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-36971","tags":["US Government Resource"]}],"techniques":[{"id":"T1068","name":"Exploitation for Privilege Escalation","tactics":["privilege-escalation"],"provenance":"ai","basis":"ai-mapping","bases":["ai-mapping"],"basisDetail":"claude-haiku-5-5: Kernel race allows local privilege escalation via UAF","mappingType":"exploitation_technique","evidence":[{"from":"description","quote":"does not enforce proper RCU rules when","start":132,"end":170}],"model":"claude-haiku-5-5","confidence":"medium","confidenceNote":"AI-mapped from the description (quote-validated, not expert-reviewed)"}],"reports":[],"affected":[],"advisories":[],"euvd":{"id":"EUVD-2024-36321","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2024-36321","exploited":true,"exploitedSince":"2024-08-07","provenance":"source"},"exploits":[],"exploitSources":{"pocGithub":{"count":1,"skipped":0,"earliest":"2025-10-14","earliestUrl":"https://github.com/M4G1XX/CVE-2024-36971","repos":[{"name":"M4G1XX/CVE-2024-36971","url":"https://github.com/M4G1XX/CVE-2024-36971","stars":2,"created":"2025-10-14"}]},"first":{"date":"2025-10-14","source":"PoC-in-GitHub","url":"https://github.com/M4G1XX/CVE-2024-36971"},"provenance":"source"},"exploitRefs":[],"flow":[{"stage":"exploitation","techniques":["T1068"],"provenance":"ai"}],"timeline":[{"date":"2024-06-10","kind":"published","label":"Published (NVD)","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-36971","provenance":"source"},{"date":"2024-08-05","kind":"exploited-reported","label":"Exploitation first reported (VulnCheck KEV evidence)","url":"https://docs.google.com/spreadsheets/d/1lkNJ0uQwbeC1ZTRrxdtuPLCIl7mlUreoKfSIgajnSyY/edit","provenance":"source"},{"date":"2024-08-07","kind":"kev","label":"Added to CISA KEV","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","provenance":"source"},{"date":"2024-08-07","kind":"euvd-exploited","label":"ENISA EUVD: exploited","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2024-36321","provenance":"source"},{"date":"2025-10-14","kind":"exploit-public","label":"First public exploit: PoC-in-GitHub","url":"https://github.com/M4G1XX/CVE-2024-36971","provenance":"source"}],"speed":{"daysToPublicExploit":491,"firstExploitFrom":"PoC-in-GitHub","daysToKev":58},"priority":{"score":65.6,"factors":[{"name":"In a KEV catalog","points":35.0,"detail":"listed in CISA KEV and VulnCheck KEV"},{"name":"Recent KEV listing","points":0.0,"detail":"added 816 days ago"},{"name":"Known ransomware use","points":0.0,"detail":"not known"},{"name":"EPSS percentile","points":17.18,"detail":"percentile 0.8590"},{"name":"Named in threat reports","points":0.0,"detail":"0 reports"},{"name":"Public exploit code","points":5.0,"detail":"1 PoC-in-GitHub repo"},{"name":"Mentioned in OTX pulses","points":3.0,"detail":"50 pulses"},{"name":"CVSS severity","points":5.46,"detail":"base score 7.8"},{"name":"End-of-life product","points":0.0,"detail":"supported or unknown"}]},"lineage":{"familyId":"fam-class-android-kernel-cwe-416"}}