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    CVE-2015-5307

    The KVM subsystem in the Linux kernel through 4.2.6, and Xen 4.3.x through 4.6.x, allows guest OS users to cause a denial of service (host OS panic or hang) by triggering many #AC (aka Alignment Check) exceptions, related to svm.c and vmx.c.

    Published:Nov 10, 2015
    Last Modified:Apr 12, 2025
    EPS:Nov 16, 2015
    EPSS Score:0.00169
    CVSS Score:4.9

    Affected Products

    Vendor
    Canonical
    Product
    Ubuntu Linux
    Vendor
    Debian
    Product
    Debian Linux
    Vendor
    Linux
    Product
    Linux Kernel
    Vendor
    Oracle
    Product
    Vm Virtualbox
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Redhat
    Product
    Rhel Aus
    Vendor
    Redhat
    Product
    Rhel Eus
    Vendor
    Redhat
    Product
    Rhel Mission Critical
    Vendor
    Xen
    Product
    Xen

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

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    CVE-2026-13367 (CVSS 7.8) — IBM Informix Dynamic Server 14.10, and 15.0 contain a local privilege escalation vulnerability in the oninit s…
    CVE-2026-47337 (CVSS 3.3) — Ubuntu Linux 6.8, 6.17 and 7.0 contain SAUCE patches with a possible NULL pointer dereference in the handling …
    CVE-2026-47336 (CVSS 3.3) — Ubuntu Linux 6.8 contains SAUCE patches with a possible use of an uninitialized variable in AppArmor AF_INET/A…
    CVE-2026-47335 (CVSS 5.5) — Ubuntu Linux 6.8 contains SAUCE patches with a possible NULL pointer dereference in the handling of AppArmor n…
    CVE-2026-47334 (CVSS 5.5) — Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which incorrectly sleep while holding a spinlock…
    CVE-2026-47333 (CVSS 7.8) — Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which can potentially incorrectly compute the si…
    CVE-2026-47332 (CVSS 5.5) — Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which incorrectly validate the size of an intern…
    CVE-2026-47331 (CVSS 7.8) — Ubuntu Linux 6.8 contains AppArmor SAUCE patches which fail to acquire a lock when modifying a linked list. An…
    CVE-2026-47330 (CVSS 3.3) — Ubuntu Linux 6.8, 7.17 and 7.0 contain AppArmor SAUCE patches which can, under certain circumstances, use an u…

    References

    http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=54a20552e1eae07aa240fa370a0293e006b5faed
    http://lists.fedoraproject.org/pipermail/package-announce/2015-November/172187.html
    http://lists.fedoraproject.org/pipermail/package-announce/2015-November/172300.html
    http://lists.fedoraproject.org/pipermail/package-announce/2015-November/172435.html
    http://lists.opensuse.org/opensuse-security-announce/2015-11/msg00035.html
    http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00005.html
    http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00026.html
    http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00031.html
    http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00013.html
    http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00038.html
    http://lists.opensuse.org/opensuse-updates/2015-12/msg00039.html
    http://lists.opensuse.org/opensuse-updates/2015-12/msg00053.html
    http://rhn.redhat.com/errata/RHSA-2015-2636.html
    http://rhn.redhat.com/errata/RHSA-2015-2645.html
    http://rhn.redhat.com/errata/RHSA-2016-0046.html
    http://support.citrix.com/article/CTX202583
    http://www.debian.org/security/2015/dsa-3396
    http://www.debian.org/security/2015/dsa-3414
    http://www.debian.org/security/2016/dsa-3454
    http://www.openwall.com/lists/oss-security/2015/11/10/6
    http://www.oracle.com/technetwork/topics/security/cpujan2016-2367955.html
    http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html
    http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html
    http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html
    http://www.securityfocus.com/bid/77528
    http://www.securitytracker.com/id/1034105
    http://www.ubuntu.com/usn/USN-2800-1
    http://www.ubuntu.com/usn/USN-2801-1
    http://www.ubuntu.com/usn/USN-2802-1
    http://www.ubuntu.com/usn/USN-2803-1
    http://www.ubuntu.com/usn/USN-2804-1
    http://www.ubuntu.com/usn/USN-2805-1
    http://www.ubuntu.com/usn/USN-2806-1
    http://www.ubuntu.com/usn/USN-2807-1
    http://xenbits.xen.org/xsa/advisory-156.html
    https://bugzilla.redhat.com/show_bug.cgi?id=1277172
    https://github.com/torvalds/linux/commit/54a20552e1eae07aa240fa370a0293e006b5faed
    https://kb.juniper.net/JSA10783
    http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=54a20552e1eae07aa240fa370a0293e006b5faed
    http://lists.fedoraproject.org/pipermail/package-announce/2015-November/172187.html
    http://lists.fedoraproject.org/pipermail/package-announce/2015-November/172300.html
    http://lists.fedoraproject.org/pipermail/package-announce/2015-November/172435.html
    http://lists.opensuse.org/opensuse-security-announce/2015-11/msg00035.html
    http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00005.html
    http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00026.html
    http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00031.html
    http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00013.html
    http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00038.html
    http://lists.opensuse.org/opensuse-updates/2015-12/msg00039.html
    http://lists.opensuse.org/opensuse-updates/2015-12/msg00053.html
    http://rhn.redhat.com/errata/RHSA-2015-2636.html
    http://rhn.redhat.com/errata/RHSA-2015-2645.html
    http://rhn.redhat.com/errata/RHSA-2016-0046.html
    http://support.citrix.com/article/CTX202583
    http://www.debian.org/security/2015/dsa-3396
    http://www.debian.org/security/2015/dsa-3414
    http://www.debian.org/security/2016/dsa-3454
    http://www.openwall.com/lists/oss-security/2015/11/10/6
    http://www.oracle.com/technetwork/topics/security/cpujan2016-2367955.html
    http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html
    http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html
    http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html
    http://www.securityfocus.com/bid/77528
    http://www.securitytracker.com/id/1034105
    http://www.ubuntu.com/usn/USN-2800-1
    http://www.ubuntu.com/usn/USN-2801-1
    http://www.ubuntu.com/usn/USN-2802-1
    http://www.ubuntu.com/usn/USN-2803-1
    http://www.ubuntu.com/usn/USN-2804-1
    http://www.ubuntu.com/usn/USN-2805-1
    http://www.ubuntu.com/usn/USN-2806-1
    http://www.ubuntu.com/usn/USN-2807-1
    http://xenbits.xen.org/xsa/advisory-156.html
    https://bugzilla.redhat.com/show_bug.cgi?id=1277172
    https://github.com/torvalds/linux/commit/54a20552e1eae07aa240fa370a0293e006b5faed
    https://kb.juniper.net/JSA10783

    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