CVE-2017-1000252

kernel: kvm: Reachable BUG() on out-of-bounds guest IRQ

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 subsystem in the Linux kernel through 4.13.3 allows guest OS users to cause a denial of service (assertion failure, and hypervisor hang or crash) via an out-of bounds guest_irq value, related to arch/x86/kvm/vmx.c and virt/kvm/eventfd.c.

El subsistema KVM en el kernel de Linux hasta la versión 4.13.3 permite que los usuarios invitados del sistema operativo provoquen una denegación de servicio (fallo de aserción y bloqueo o cierre inesperado del hipervisor) mediante un valor guest_irq fuera de límites, relacionado con arch/x86/kvm/vmx.c y virt/kvm/eventfd.c.

A reachable assertion failure flaw was found in the Linux kernel built with KVM virtualisation(CONFIG_KVM) support with Virtual Function I/O feature (CONFIG_VFIO) enabled. This failure could occur if a malicious guest device sent a virtual interrupt (guest IRQ) with a larger (>1024) index value.

*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

Adjacent

Attack Complexity

High

Privileges Required

High

User Interaction

None

Scope

Changed

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

Attack Vector

Adjacent

Attack Complexity

High

Authentication

Single

Confidentiality

None

Integrity

None

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2017-09-26 CVE Reserved
2017-09-26 CVE Published
2023-03-08 EPSS Updated
2024-08-05 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-20: Improper Input Validation
CWE-617: Reachable Assertion

CAPEC

References (14)

URL	Tag	Source
http://www.securityfocus.com/bid/101022	Vdb Entry

URL	Date	SRC

URL	Date	SRC
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=36ae3c0a36b7456432fedce38ae2f7bd3e01a563	2019-10-03
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=3a8b0677fc6180a467e26cc32ce6b0c09a32f9bb	2019-10-03
http://www.openwall.com/lists/oss-security/2017/09/15/4	2019-10-03
https://bugzilla.redhat.com/show_bug.cgi?id=1490781	2018-04-17
https://github.com/torvalds/linux/commit/36ae3c0a36b7456432fedce38ae2f7bd3e01a563	2019-10-03
https://github.com/torvalds/linux/commit/3a8b0677fc6180a467e26cc32ce6b0c09a32f9bb	2019-10-03
https://marc.info/?l=kvm&m=150549145711115&w=2	2019-10-03
https://marc.info/?l=kvm&m=150549146311117&w=2	2019-10-03

URL	Date	SRC
http://www.debian.org/security/2017/dsa-3981	2019-10-03
https://access.redhat.com/errata/RHSA-2018:0676	2019-10-03
https://access.redhat.com/errata/RHSA-2018:1062	2019-10-03
https://access.redhat.com/errata/RHSA-2018:1130	2019-10-03
https://access.redhat.com/security/cve/CVE-2017-1000252	2018-04-17

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"				<= 4.13.3 Search vendor "Linux" for product "Linux Kernel" and version " <= 4.13.3"		-		Affected