{
    "id": "CVE-2024-36971",
    "published": "2024-06-10 09:15:09",
    "last_modified": "2026-06-17 07:37:30",
    "cvss_score": "7.8",
    "cvss_severity": "HIGH",
    "cvss_version": "3.1",
    "cvss_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
    "cwe": "CWE-416",
    "description": "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.",
    "epss_score": "0.02701",
    "epss_percentile": "0.85360",
    "kev": 1,
    "kev_due": "2024-08-28",
    "has_exploit": 0,
    "updated_at": "2026-09-27 18:17:43",
    "priority": {
        "rank": 1,
        "label": "Patch first",
        "why": "On CISA KEV — known exploited in the wild, due 2024-08-28."
    },
    "products": [
        {
            "vendor": "debian",
            "product": "debian_linux"
        },
        {
            "vendor": "linux",
            "product": "linux_kernel"
        }
    ],
    "kev_detail": {
        "cve_id": "CVE-2024-36971",
        "date_added": "2024-08-07",
        "due_date": "2024-08-28",
        "vendor": "Android",
        "product": "Kernel",
        "name": "Android Kernel Remote Code Execution Vulnerability",
        "ransomware": 0
    },
    "exploits": [],
    "refs_list": [
        "https://git.kernel.org/stable/c/051c0bde9f0450a2ec3d62a86d2a0d2fad117f13",
        "https://git.kernel.org/stable/c/2295a7ef5c8c49241bff769e7826ef2582e532a6",
        "https://git.kernel.org/stable/c/5af198c387128a9d2ddd620b0f0803564a4d4508",
        "https://git.kernel.org/stable/c/81dd3c82a456b0015461754be7cb2693991421b4",
        "https://git.kernel.org/stable/c/92f1655aa2b2294d0b49925f3b875a634bd3b59e",
        "https://git.kernel.org/stable/c/b8af8e6118a6605f0e495a58d591ca94a85a50fc",
        "https://git.kernel.org/stable/c/db0082825037794c5dba9959c9de13ca34cc5e72",
        "https://git.kernel.org/stable/c/eacb8b195579c174a6d3e12a9690b206eb7f28cf",
        "https://git.kernel.org/stable/c/051c0bde9f0450a2ec3d62a86d2a0d2fad117f13",
        "https://git.kernel.org/stable/c/2295a7ef5c8c49241bff769e7826ef2582e532a6",
        "https://git.kernel.org/stable/c/5af198c387128a9d2ddd620b0f0803564a4d4508",
        "https://git.kernel.org/stable/c/81dd3c82a456b0015461754be7cb2693991421b4",
        "https://git.kernel.org/stable/c/92f1655aa2b2294d0b49925f3b875a634bd3b59e",
        "https://git.kernel.org/stable/c/b8af8e6118a6605f0e495a58d591ca94a85a50fc",
        "https://git.kernel.org/stable/c/db0082825037794c5dba9959c9de13ca34cc5e72",
        "https://git.kernel.org/stable/c/eacb8b195579c174a6d3e12a9690b206eb7f28cf",
        "https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html",
        "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-36971"
    ]
}