CVE-2017-15306

Kernel: KVM: oops when checking KVM_CAP_PPC_HTM on PPC platform

Severity Score

5.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The kvm_vm_ioctl_check_extension function in arch/powerpc/kvm/powerpc.c in the Linux kernel before 4.13.11 allows local users to cause a denial of service (NULL pointer dereference and system crash) via a KVM_CHECK_EXTENSION KVM_CAP_PPC_HTM ioctl call to /dev/kvm.

La función kvm_vm_ioctl_check_extension en arch/powerpc/kvm/powerpc.c en el kernel de Linux, en versiones anteriores a la 4.13.11, permite que los usuarios locales provoquen una denegación de servicio (desreferencia de puntero NULL y cierre inesperado del sistema) mediante una llamada ioctl KVM_CHECK_EXTENSION KVM_CAP_PPC_HTM a /dev/kvm.

*Credits: N/A

CVSS Scores

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

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

2017-10-14 CVE Reserved
2017-11-06 CVE Published
2023-03-08 EPSS Updated
2024-08-05 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-476: NULL Pointer Dereference

CAPEC

References (7)

URL	Tag	Source
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.11	Release Notes
http://www.securityfocus.com/bid/101693	Third Party Advisory

URL	Date	SRC

URL	Date	SRC
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ac64115a66c18c01745bbd3c47a36b124e5fd8c0	2017-11-28
http://openwall.com/lists/oss-security/2017/11/06/6	2017-11-28
https://github.com/torvalds/linux/commit/ac64115a66c18c01745bbd3c47a36b124e5fd8c0	2017-11-28

URL	Date	SRC
https://access.redhat.com/security/cve/CVE-2017-15306	2018-04-10
https://bugzilla.redhat.com/show_bug.cgi?id=1510399	2018-04-10

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"				<= 4.13.10 Search vendor "Linux" for product "Linux Kernel" and version " <= 4.13.10"		-		Affected