CVE-2017-1000252

Impact:
Moderate
Public Date:
2017-09-15
CWE:
CWE-617
Bugzilla:
1490781: CVE-2017-1000252 kernel: kvm: Reachable BUG() on out-of-bounds guest IRQ
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.

Find out more about CVE-2017-1000252 from the MITRE CVE dictionary dictionary and NIST NVD.

Statement

This issue does not affect the versions of the kernel package as shipped with Red Hat Enterprise Linux 5, 6 and Red Hat Enterprise MRG 2.

This issue affects the version of Linux kernel as shipped with Red Hat Enterprise Linux 7. Future kernel updates for Red Hat Enterprise Linux 7 may address this issue.

CVSS v2 metrics

Base Score 4.3
Base Metrics AV:A/AC:H/Au:S/C:N/I:N/A:C
Access Vector Adjacent Network
Access Complexity High
Authentication Single
Confidentiality Impact None
Integrity Impact None
Availability Impact Complete

CVSS v3 metrics

CVSS3 Base Score 5.4
CVSS3 Base Metrics CVSS:3.0/AV:A/AC:H/PR:H/UI:N/S:C/C:N/I:N/A:H
Attack Vector Adjacent Network
Attack Complexity High
Privileges Required High
User Interaction None
Scope Changed
Confidentiality None
Integrity Impact None
Availability Impact High

Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).

Red Hat Security Errata

Platform Errata Release Date
Red Hat Enterprise Linux 7 (kernel) RHSA-2018:1062 2018-04-10
Red Hat Enterprise Linux for Real Time for NFV (v. 7) (kernel-rt) RHSA-2018:0676 2018-04-10
Red Hat Enterprise Linux Extended Update Support 7.4 (kernel) RHSA-2018:1130 2018-04-17

Affected Packages State

Platform Package State
Red Hat Enterprise MRG 2 realtime-kernel Not affected
Red Hat Enterprise Linux 7 kernel-alt Not affected
Red Hat Enterprise Linux 6 kernel Not affected
Red Hat Enterprise Linux 5 kernel Not affected

Acknowledgements

Red Hat would like to thank Jan H. Schönherr (Amazon) for reporting this issue.
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