CVE-2017-1000252 Information

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.

CVSS Vector

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

Reference

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

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

5.5