CVE-2015-7513
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…
Does this matter?
Lower severity and a low EPSS score (0.56%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 6.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
- EPSS
- 0.56% probability · 47th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-369
- Affected
- linux/linux kernel · debian/debian linux · fedoraproject/fedora · canonical/ubuntu linux
- Source
- secalert@redhat.com
EPSS 0.6% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
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
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.