CVE Feed

    Dashboard / CVE / CVE-2011-4110

    CVE-2011-4110

    The user_update function in security/keys/user_defined.c in the Linux kernel 2.6 allows local users to cause a denial of service (NULL pointer dereference and kernel oops) via vectors related to a user-defined key and "updating a negative key into a fully instantiated key."

    Published:Nov 15, 2011
    Last Modified:Apr 11, 2025
    EPS:Jan 27, 2012
    EPSS Score:0.00138
    CVSS Score:2.1

    Affected Products

    Vendor
    Linux
    Product
    Linux Kernel
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Redhat
    Product
    Enterprise Mrg
    Vendor
    Redhat
    Product
    Rhel Eus

    Exploits

    https://lkml.org/lkml/2011/11/15/363https://lkml.org/lkml/2011/11/15/363

    Common Weakness Enumeration

    CWE-476 NULL Pointer Dereference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2026-80925 — In the Linux kernel, the following vulnerability has been resolved: vlan: fix skb_under_panic and races when …
    CVE-2026-80924 (CVSS 7.5) — In the Linux kernel, the following vulnerability has been resolved: crypto: krb5 - use kfree_sensitive() for …
    CVE-2026-80923 — In the Linux kernel, the following vulnerability has been resolved: xhci: dbgtty: Fix unregister on tty_regis…
    CVE-2026-80922 — In the Linux kernel, the following vulnerability has been resolved: crypto: qcom-rng - Allow zero as a random…
    CVE-2026-80921 (CVSS 8.8) — In the Linux kernel, the following vulnerability has been resolved: KVM: s390: vsie: zero stale crypto bits …
    CVE-2026-80920 — In the Linux kernel, the following vulnerability has been resolved: io_uring: defer eventfd signaling when qu…
    CVE-2026-80919 — In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: fix recursive ww_mutex acquir…
    CVE-2026-80918 — In the Linux kernel, the following vulnerability has been resolved: HID: core: fix number/pointer type confus…
    CVE-2026-80917 — In the Linux kernel, the following vulnerability has been resolved: PCI: host-generic: Fix NULL pointer deref…
    CVE-2026-80916 — In the Linux kernel, the following vulnerability has been resolved: kcov: fix data corruption and race condit…

    References

    http://marc.info/?l=bugtraq&m=139447903326211&w=2
    http://secunia.com/advisories/47754
    http://www.openwall.com/lists/oss-security/2011/11/21/19
    http://www.openwall.com/lists/oss-security/2011/11/22/5
    http://www.openwall.com/lists/oss-security/2011/11/22/6
    http://www.securityfocus.com/bid/50755
    http://www.ubuntu.com/usn/USN-1324-1
    http://www.ubuntu.com/usn/USN-1328-1
    http://www.ubuntu.com/usn/USN-1344-1
    https://bugzilla.redhat.com/show_bug.cgi?id=751297
    https://lkml.org/lkml/2011/11/15/363
    http://marc.info/?l=bugtraq&m=139447903326211&w=2
    http://secunia.com/advisories/47754
    http://www.openwall.com/lists/oss-security/2011/11/21/19
    http://www.openwall.com/lists/oss-security/2011/11/22/5
    http://www.openwall.com/lists/oss-security/2011/11/22/6
    http://www.securityfocus.com/bid/50755
    http://www.ubuntu.com/usn/USN-1324-1
    http://www.ubuntu.com/usn/USN-1328-1
    http://www.ubuntu.com/usn/USN-1344-1
    https://bugzilla.redhat.com/show_bug.cgi?id=751297
    https://lkml.org/lkml/2011/11/15/363

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High