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.

Score

CVSS 2.0 4.9 Medium

Status

Modified - secalert@redhat.com

Published

2015-11-16

Last modified

2024-08-06

Weaknesses

CWE-399

Affected products

• Ubuntu Linux (Canonical)
• Debian Linux (Debian)
• Linux Kernel (Linux)
• Vm Virtualbox (Oracle)
• Xen (Xen)

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