CVE-2017-1000252

LOW

Description

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.

References

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=36ae3c0a36b7456432fedce38ae2f7bd3e01a563

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=3a8b0677fc6180a467e26cc32ce6b0c09a32f9bb

http://www.debian.org/security/2017/dsa-3981

http://www.openwall.com/lists/oss-security/2017/09/15/4

http://www.securityfocus.com/bid/101022

https://access.redhat.com/errata/RHSA-2018:0676

https://access.redhat.com/errata/RHSA-2018:1062

https://access.redhat.com/errata/RHSA-2018:1130

https://bugzilla.redhat.com/show_bug.cgi?id=1490781

https://github.com/torvalds/linux/commit/36ae3c0a36b7456432fedce38ae2f7bd3e01a563

https://github.com/torvalds/linux/commit/3a8b0677fc6180a467e26cc32ce6b0c09a32f9bb

https://marc.info/?l=kvm&m=150549145711115&w=2

https://marc.info/?l=kvm&m=150549146311117&w=2

Details

Source: MITRE

Published: 2017-09-26

Updated: 2018-04-19

Type: CWE-20

Risk Information

CVSS v2.0

Base Score: 2.1

Vector: AV:L/AC:L/Au:N/C:N/I:N/A:P

Impact Score: 2.9

Exploitability Score: 3.9

Severity: LOW

CVSS v3.0

Base Score: 5.5

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Impact Score: 3.6

Exploitability Score: 1.8

Severity: MEDIUM