CVE-2013-1796

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    CVE-2013-1796

    Published: 22 Mar 2013Last Modified: 10 Apr 2026

    Summary:

    Details: The kvm_set_msr_common function in arch/x86/kvm/x86.c in the Linux kernel through 3.8.4 does not ensure a required time_page alignment during an MSR_KVM_SYSTEM_TIME operation, which allows guest OS users to cause a denial of service (buffer overflow and host OS memory corruption) or possibly have unspecified other impact via a crafted application.

    References: http://rhn.redhat.com/errata/RHSA-2013-0727.html, http://rhn.redhat.com/errata/RHSA-2013-0744.html, http://rhn.redhat.com/errata/RHSA-2013-0746.html, http://rhn.redhat.com/errata/RHSA-2013-0928.html, http://rhn.redhat.com/errata/RHSA-2013-1026.html, http://www.mandriva.com/security/advisories?name=MDVSA-2013:176, http://www.ubuntu.com/usn/USN-1805-1, http://www.ubuntu.com/usn/USN-1808-1, http://www.ubuntu.com/usn/USN-1809-1, http://www.ubuntu.com/usn/USN-1812-1, http://www.ubuntu.com/usn/USN-1813-1, https://github.com/torvalds/linux/commit/c300aa64ddf57d9c5d9c898a64b36877345dd4a9, https://bugzilla.redhat.com/show_bug.cgi?id=917012, http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=c300aa64ddf57d9c5d9c898a64b36877345dd4a9, http://lists.opensuse.org/opensuse-security-announce/2013-05/msg00018.html, http://lists.opensuse.org/opensuse-security-announce/2013-06/msg00005.html, http://lists.opensuse.org/opensuse-security-announce/2013-07/msg00018.html, http://www.openwall.com/lists/oss-security/2013/03/20/9, http://www.securityfocus.com/bid/58607

    Affected packages

    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
    CVE-2013-1796 | CVE-DB