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    CVE-2015-2666

    Stack-based buffer overflow in the get_matching_model_microcode function in arch/x86/kernel/cpu/microcode/intel_early.c in the Linux kernel before 4.0 allows context-dependent attackers to gain privileges by constructing a crafted microcode header and leveraging root privileges for write access to the initrd.

    Published:Feb 19, 2015
    Last Modified:Apr 12, 2025
    EPS:May 27, 2015
    EPSS Score:0.00103
    CVSS Score:6.9

    Affected Products

    Vendor
    Fedoraproject
    Product
    Fedora
    Vendor
    Linux
    Product
    Linux Kernel
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Redhat
    Product
    Rhel Extras Rt

    Exploits

    No exploit reference

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    References

    http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=f84598bd7c851f8b0bf8cd0d7c3be0d73c432ff4
    http://lists.fedoraproject.org/pipermail/package-announce/2015-March/153329.html
    http://rhn.redhat.com/errata/RHSA-2015-1534.html
    http://www.openwall.com/lists/oss-security/2015/03/20/18
    http://www.securitytracker.com/id/1032414
    https://bugzilla.redhat.com/show_bug.cgi?id=1204722
    https://github.com/torvalds/linux/commit/f84598bd7c851f8b0bf8cd0d7c3be0d73c432ff4
    http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=f84598bd7c851f8b0bf8cd0d7c3be0d73c432ff4
    http://lists.fedoraproject.org/pipermail/package-announce/2015-March/153329.html
    http://rhn.redhat.com/errata/RHSA-2015-1534.html
    http://www.openwall.com/lists/oss-security/2015/03/20/18
    http://www.securitytracker.com/id/1032414
    https://bugzilla.redhat.com/show_bug.cgi?id=1204722
    https://github.com/torvalds/linux/commit/f84598bd7c851f8b0bf8cd0d7c3be0d73c432ff4

    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