CVE-2015-7513

Severity Score

6.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

arch/x86/kvm/x86.c en el kernel de Linux en versiones anteriores a 4.4 no reinicia los valores del contador PIT durante la restauración del estado, lo que permite a usuarios invitados del SO provocar una denegación de servicio (error de división por cero y caída del host del SO) a través del valor cero, relacionado con las funciones kvm_vm_ioctl_set_pit y kvm_vm_ioctl_set_pit2.

*Credits: N/A

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2015-09-29 CVE Reserved
2016-01-05 CVE Published
2023-03-08 EPSS Updated
2024-08-06 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-369: Divide By Zero

CAPEC

References (19)

URL	Tag	Source
http://www.securityfocus.com/bid/79901	Third Party Advisory
http://www.securitytracker.com/id/1034602	Third Party Advisory

URL	Date	SRC

URL	Date	SRC
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=0185604c2d82c560dab2f2933a18f797e74ab5a8	2021-12-10
http://www.openwall.com/lists/oss-security/2016/01/07/2	2021-12-10
https://bugzilla.redhat.com/show_bug.cgi?id=1284847	2021-12-10
https://github.com/torvalds/linux/commit/0185604c2d82c560dab2f2933a18f797e74ab5a8	2021-12-10

URL	Date	SRC
http://lists.fedoraproject.org/pipermail/package-announce/2016-February/176484.html	2021-12-10
http://lists.fedoraproject.org/pipermail/package-announce/2016-January/175792.html	2021-12-10
http://lists.fedoraproject.org/pipermail/package-announce/2016-January/176194.html	2021-12-10
http://www.debian.org/security/2016/dsa-3434	2021-12-10
http://www.ubuntu.com/usn/USN-2886-1	2021-12-10
http://www.ubuntu.com/usn/USN-2887-1	2021-12-10
http://www.ubuntu.com/usn/USN-2887-2	2021-12-10
http://www.ubuntu.com/usn/USN-2888-1	2021-12-10
http://www.ubuntu.com/usn/USN-2889-1	2021-12-10
http://www.ubuntu.com/usn/USN-2889-2	2021-12-10
http://www.ubuntu.com/usn/USN-2890-1	2021-12-10
http://www.ubuntu.com/usn/USN-2890-2	2021-12-10
http://www.ubuntu.com/usn/USN-2890-3	2021-12-10

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				< 4.4 Search vendor "Linux" for product "Linux Kernel" and version " < 4.4"		-		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				4.4 Search vendor "Linux" for product "Linux Kernel" and version "4.4"		-		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				4.4 Search vendor "Linux" for product "Linux Kernel" and version "4.4"		rc1		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				4.4 Search vendor "Linux" for product "Linux Kernel" and version "4.4"		rc2		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				4.4 Search vendor "Linux" for product "Linux Kernel" and version "4.4"		rc3		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				4.4 Search vendor "Linux" for product "Linux Kernel" and version "4.4"		rc4		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				4.4 Search vendor "Linux" for product "Linux Kernel" and version "4.4"		rc5		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				4.4 Search vendor "Linux" for product "Linux Kernel" and version "4.4"		rc6		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				7.0 Search vendor "Debian" for product "Debian Linux" and version "7.0"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				8.0 Search vendor "Debian" for product "Debian Linux" and version "8.0"		-		Affected
Fedoraproject Search vendor "Fedoraproject"		Fedora Search vendor "Fedoraproject" for product "Fedora"				22 Search vendor "Fedoraproject" for product "Fedora" and version "22"		-		Affected
Fedoraproject Search vendor "Fedoraproject"		Fedora Search vendor "Fedoraproject" for product "Fedora"				23 Search vendor "Fedoraproject" for product "Fedora" and version "23"		-		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				12.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "12.04"		-		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				14.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "14.04"		esm		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				15.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "15.04"		-		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				15.10 Search vendor "Canonical" for product "Ubuntu Linux" and version "15.10"		-		Affected