CVE-2015-5307

Name: CVE-2015-5307
Creator: NVD / NIST
Published: 2015-11-16T11:59:05.07+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 0.57%

Last modified Jun 17, 2026

CVE-2015-5307 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 0.57% chance of exploitation in the next 30 days.

Description

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.

Metrics

EPSS Probability

0.57%

42.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-399

Affected Software

Vendor	Product	Versions
Linux	Linux Kernel	<= 4.2.3
Xen	Xen	4.3.0
Xen	Xen	4.3.1
Xen	Xen	4.3.2
Xen	Xen	4.3.3
Xen	Xen	4.3.4
Xen	Xen	4.4.0
Xen	Xen	4.4.1
Xen	Xen	4.4.2
Xen	Xen	4.4.3
Xen	Xen	4.4.4
Xen	Xen	4.5.0
Xen	Xen	4.5.1
Xen	Xen	4.5.2
Xen	Xen	4.5.3
Xen	Xen	4.5.5
Xen	Xen	4.6.0
Xen	Xen	4.6.1
Xen	Xen	4.6.2
Xen	Xen	4.6.3
Xen	Xen	4.6.4
Xen	Xen	4.6.5
Xen	Xen	4.6.6
Oracle	Vm Virtualbox	>= 4.0.0, <= 4.0.34
Oracle	Vm Virtualbox	>= 4.1.0, <= 4.1.42
Oracle	Vm Virtualbox	>= 4.2.0, <= 4.2.34
Oracle	Vm Virtualbox	>= 4.3.0, <= 4.3.29
Oracle	Vm Virtualbox	>= 5.0.0, <= 5.0.8
Debian	Debian Linux	7.0
Debian	Debian Linux	8.0
Canonical	Ubuntu Linux	12.04
Canonical	Ubuntu Linux	14.04
Canonical	Ubuntu Linux	15.10

References

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=54a20552e1eae07aa240fa370a0293e006b5faedVendor Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2015-November/172187.htmlMailing List, Third Party Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2015-November/172300.htmlMailing List, Third Party Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2015-November/172435.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2015-11/msg00035.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00005.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00026.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00031.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00013.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00038.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-updates/2015-12/msg00039.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-updates/2015-12/msg00053.htmlMailing List, Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2015-2636.htmlThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2015-2645.htmlThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2016-0046.htmlThird Party Advisory
http://support.citrix.com/article/CTX202583Third Party Advisory
http://www.debian.org/security/2015/dsa-3396Third Party Advisory
http://www.debian.org/security/2015/dsa-3414Third Party Advisory
http://www.debian.org/security/2016/dsa-3454Third Party Advisory
http://www.openwall.com/lists/oss-security/2015/11/10/6Mailing List, Third Party Advisory
http://www.oracle.com/technetwork/topics/security/cpujan2016-2367955.htmlPatch, Vendor Advisory
http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.htmlVendor Advisory
http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.htmlVendor Advisory
http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.htmlVendor Advisory
http://www.securityfocus.com/bid/77528Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1034105Third Party Advisory, VDB Entry
http://www.ubuntu.com/usn/USN-2800-1Third Party Advisory
http://www.ubuntu.com/usn/USN-2801-1Third Party Advisory
http://www.ubuntu.com/usn/USN-2802-1Third Party Advisory
http://www.ubuntu.com/usn/USN-2803-1Third Party Advisory
http://www.ubuntu.com/usn/USN-2804-1Third Party Advisory
http://www.ubuntu.com/usn/USN-2805-1Third Party Advisory
http://www.ubuntu.com/usn/USN-2806-1Third Party Advisory
http://www.ubuntu.com/usn/USN-2807-1Third Party Advisory
http://xenbits.xen.org/xsa/advisory-156.htmlVendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1277172Issue Tracking, Third Party Advisory
https://github.com/torvalds/linux/commit/54a20552e1eae07aa240fa370a0293e006b5faedVendor Advisory
https://kb.juniper.net/JSA10783Third Party Advisory
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=54a20552e1eae07aa240fa370a0293e006b5faedVendor Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2015-November/172187.htmlMailing List, Third Party Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2015-November/172300.htmlMailing List, Third Party Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2015-November/172435.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2015-11/msg00035.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00005.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00026.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00031.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00013.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00038.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-updates/2015-12/msg00039.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-updates/2015-12/msg00053.htmlMailing List, Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2015-2636.htmlThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2015-2645.htmlThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2016-0046.htmlThird Party Advisory
http://support.citrix.com/article/CTX202583Third Party Advisory
http://www.debian.org/security/2015/dsa-3396Third Party Advisory
http://www.debian.org/security/2015/dsa-3414Third Party Advisory
http://www.debian.org/security/2016/dsa-3454Third Party Advisory
http://www.openwall.com/lists/oss-security/2015/11/10/6Mailing List, Third Party Advisory
http://www.oracle.com/technetwork/topics/security/cpujan2016-2367955.htmlPatch, Vendor Advisory
http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.htmlVendor Advisory
http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.htmlVendor Advisory
http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.htmlVendor Advisory
http://www.securityfocus.com/bid/77528Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1034105Third Party Advisory, VDB Entry
http://www.ubuntu.com/usn/USN-2800-1Third Party Advisory
http://www.ubuntu.com/usn/USN-2801-1Third Party Advisory
http://www.ubuntu.com/usn/USN-2802-1Third Party Advisory
http://www.ubuntu.com/usn/USN-2803-1Third Party Advisory
http://www.ubuntu.com/usn/USN-2804-1Third Party Advisory
http://www.ubuntu.com/usn/USN-2805-1Third Party Advisory
http://www.ubuntu.com/usn/USN-2806-1Third Party Advisory
http://www.ubuntu.com/usn/USN-2807-1Third Party Advisory
http://xenbits.xen.org/xsa/advisory-156.htmlVendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1277172Issue Tracking, Third Party Advisory
https://github.com/torvalds/linux/commit/54a20552e1eae07aa240fa370a0293e006b5faedVendor Advisory
https://kb.juniper.net/JSA10783Third Party Advisory

Timeline

Published: Nov 16, 2015
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2015-5307?

How severe is CVE-2015-5307?

Severity scoring for CVE-2015-5307 is pending analysis. The EPSS model estimates a 0.57% probability of exploitation in the next 30 days.

How do I fix CVE-2015-5307?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2015-5307?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST