CVE Database

CVE-2013-1935

Impact: Important
Public: 2013-06-10
Bugzilla: 949981: CVE-2013-1935 kernel: kvm: pv_eoi guest updates with interrupts disabled

Details

The MITRE CVE dictionary describes this issue as:

A certain Red Hat patch to the KVM subsystem in the kernel package before 2.6.32-358.11.1.el6 on Red Hat Enterprise Linux (RHEL) 6 does not properly implement the PV EOI feature, which allows guest OS users to cause a denial of service (host OS crash) by leveraging a time window during which interrupts are disabled but copy_to_user function calls are possible.

Find out more about CVE-2013-1935 from the MITRE CVE dictionary and NIST NVD.

Statement

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

CVSS v2 metrics

Base Score: 5.7
Base Metrics: AV:A/AC:M/Au:N/C:N/I:N/A:C
Access Vector: Adjacent Network
Access Complexity: Medium
Authentication: None
Confidentiality Impact: None
Integrity Impact: None
Availability Impact: Complete

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

Red Hat security errata

Platform Errata Release Date
RHEV Hypervisor for RHEL-6 (rhev-hypervisor6) RHSA-2013:0907 June 10, 2013
Red Hat Enterprise Linux version 6 (kernel) RHSA-2013:0911 June 10, 2013

External References

Acknowledgements

Red Hat would like to thank IBM for reporting this issue.

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For clarification or corrections please contact the Red Hat Security Response Team.