CVE-2015-7513

Name: CVE-2015-7513
Creator: NVD / NIST
Published: 2016-02-08T03:59:01.107+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 0.56%

Last modified Jun 17, 2026

CVE-2015-7513 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. arch/x86/kvm/x86.c in the Linux kernel before 4.4 does not reset the PIT counter values during state restoration, which allows guest OS users to cause a denial of service (divide-by-zero error and host OS crash) via a zero value, related to the kvm_vm_ioctl_set_pit and kvm_vm_ioctl_set_pit2 functions.. EPSS estimates a 0.56% chance of exploitation in the next 30 days.

Description

arch/x86/kvm/x86.c in the Linux kernel before 4.4 does not reset the PIT counter values during state restoration, which allows guest OS users to cause a denial of service (divide-by-zero error and host OS crash) via a zero value, related to the kvm_vm_ioctl_set_pit and kvm_vm_ioctl_set_pit2 functions.

Metrics

CVSS 3.1

6.5/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

EPSS Probability

0.56%

42.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-369

Affected Software

Vendor	Product	Versions
Linux	Linux Kernel	< 4.4
Linux	Linux Kernel	4.4
Debian	Debian Linux	7.0
Debian	Debian Linux	8.0
Fedoraproject	Fedora	22
Fedoraproject	Fedora	23
Canonical	Ubuntu Linux	12.04
Canonical	Ubuntu Linux	14.04
Canonical	Ubuntu Linux	15.04
Canonical	Ubuntu Linux	15.10

References

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=0185604c2d82c560dab2f2933a18f797e74ab5a8Patch, Vendor Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2016-February/176484.htmlThird Party Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2016-January/175792.htmlThird Party Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2016-January/176194.htmlThird Party Advisory
http://www.debian.org/security/2016/dsa-3434Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/01/07/2Mailing List, Patch, Third Party Advisory
http://www.securityfocus.com/bid/79901Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1034602Third Party Advisory, VDB Entry
http://www.ubuntu.com/usn/USN-2886-1Third Party Advisory
http://www.ubuntu.com/usn/USN-2887-1Third Party Advisory
http://www.ubuntu.com/usn/USN-2887-2Third Party Advisory
http://www.ubuntu.com/usn/USN-2888-1Third Party Advisory
http://www.ubuntu.com/usn/USN-2889-1Third Party Advisory
http://www.ubuntu.com/usn/USN-2889-2Third Party Advisory
http://www.ubuntu.com/usn/USN-2890-1Third Party Advisory
http://www.ubuntu.com/usn/USN-2890-2Third Party Advisory
http://www.ubuntu.com/usn/USN-2890-3Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1284847Issue Tracking, Patch, Third Party Advisory
https://github.com/torvalds/linux/commit/0185604c2d82c560dab2f2933a18f797e74ab5a8Patch, Third Party Advisory
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=0185604c2d82c560dab2f2933a18f797e74ab5a8Patch, Vendor Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2016-February/176484.htmlThird Party Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2016-January/175792.htmlThird Party Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2016-January/176194.htmlThird Party Advisory
http://www.debian.org/security/2016/dsa-3434Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/01/07/2Mailing List, Patch, Third Party Advisory
http://www.securityfocus.com/bid/79901Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1034602Third Party Advisory, VDB Entry
http://www.ubuntu.com/usn/USN-2886-1Third Party Advisory
http://www.ubuntu.com/usn/USN-2887-1Third Party Advisory
http://www.ubuntu.com/usn/USN-2887-2Third Party Advisory
http://www.ubuntu.com/usn/USN-2888-1Third Party Advisory
http://www.ubuntu.com/usn/USN-2889-1Third Party Advisory
http://www.ubuntu.com/usn/USN-2889-2Third Party Advisory
http://www.ubuntu.com/usn/USN-2890-1Third Party Advisory
http://www.ubuntu.com/usn/USN-2890-2Third Party Advisory
http://www.ubuntu.com/usn/USN-2890-3Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1284847Issue Tracking, Patch, Third Party Advisory
https://github.com/torvalds/linux/commit/0185604c2d82c560dab2f2933a18f797e74ab5a8Patch, Third Party Advisory

Timeline

Published: Feb 8, 2016
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2015-7513?

How severe is CVE-2015-7513?

CVE-2015-7513 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 0.56% probability of exploitation in the next 30 days.

How do I fix CVE-2015-7513?

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-2015-7513?

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

Scan your code now

Source: NVD / NIST