{
    "id": "CVE-2010-3081",
    "published": "2010-09-24 20:00:02",
    "last_modified": "2026-06-16 23:22:05",
    "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-119",
    "description": "The compat_alloc_user_space functions in include/asm/compat.h files in the Linux kernel before 2.6.36-rc4-git2 on 64-bit platforms do not properly allocate the userspace memory required for the 32-bit compatibility layer, which allows local users to gain privileges by leveraging the ability of the compat_mc_getsockopt function (aka the MCAST_MSFILTER getsockopt support) to control a certain length value, related to a \"stack pointer underflow\" issue, as exploited in the wild in September 2010.",
    "epss_score": "0.03533",
    "epss_percentile": "0.88931",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 1,
    "updated_at": "2026-10-07 18:17:08",
    "priority": {
        "rank": 2,
        "label": "Patch early",
        "why": "A public exploit exists."
    },
    "products": [
        {
            "vendor": "linux",
            "product": "linux_kernel"
        },
        {
            "vendor": "suse",
            "product": "suse_linux_enterprise_desktop"
        },
        {
            "vendor": "suse",
            "product": "suse_linux_enterprise_server"
        },
        {
            "vendor": "vmware",
            "product": "esx"
        }
    ],
    "kev_detail": null,
    "exploits": [
        {
            "source": "exploit-db",
            "ref_id": "15024",
            "title": "Linux Kernel 2.6.27 < 2.6.36 (RedHat x86-64) - 'compat' Local Privilege Escalation",
            "date": "2010-09-16",
            "url": "https://www.exploit-db.com/exploits/15024"
        }
    ],
    "refs_list": [
        "http://archives.neohapsis.com/archives/fulldisclosure/2010-09/0273.html",
        "http://archives.neohapsis.com/archives/fulldisclosure/2010-09/0278.html",
        "http://blog.ksplice.com/2010/09/cve-2010-3081/",
        "http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=c41d68a513c71e35a14f66d71782d27a79a81ea6",
        "http://isc.sans.edu/diary.html?storyid=9574",
        "http://lists.opensuse.org/opensuse-security-announce/2010-09/msg00006.html",
        "http://lists.opensuse.org/opensuse-security-announce/2010-10/msg00003.html",
        "http://lists.opensuse.org/opensuse-security-announce/2011-02/msg00000.html",
        "http://marc.info/?l=oss-security&m=128461522230211&w=2",
        "http://secunia.com/advisories/42384",
        "http://secunia.com/advisories/43315",
        "http://sota.gen.nz/compat1/",
        "http://www.kernel.org/pub/linux/kernel/v2.6/snapshots/patch-2.6.36-rc4-git2.log",
        "http://www.mandriva.com/security/advisories?name=MDVSA-2010:198",
        "http://www.mandriva.com/security/advisories?name=MDVSA-2010:214",
        "http://www.mandriva.com/security/advisories?name=MDVSA-2010:247",
        "http://www.redhat.com/support/errata/RHSA-2010-0758.html",
        "http://www.redhat.com/support/errata/RHSA-2010-0842.html",
        "http://www.redhat.com/support/errata/RHSA-2010-0882.html",
        "http://www.securityfocus.com/archive/1/514938/30/30/threaded",
        "http://www.securityfocus.com/archive/1/516397/100/0/threaded",
        "http://www.vmware.com/security/advisories/VMSA-2010-0017.html",
        "http://www.vmware.com/security/advisories/VMSA-2011-0003.html",
        "http://www.vupen.com/english/advisories/2010/3083",
        "http://www.vupen.com/english/advisories/2010/3117"
    ]
}