CVE-2014-0049

Impact:
Important
Public Date:
2014-03-03
Bugzilla:
1062368: CVE-2014-0049 kernel: kvm: mmio_fragments out-of-the-bounds access

The MITRE CVE dictionary describes this issue as:

Buffer overflow in the complete_emulated_mmio function in arch/x86/kvm/x86.c in the Linux kernel before 3.13.6 allows guest OS users to execute arbitrary code on the host OS by leveraging a loop that triggers an invalid memory copy affecting certain cancel_work_item data.

Find out more about CVE-2014-0049 from the MITRE CVE dictionary dictionary and NIST NVD.

Statement

Not vulnerable.

This issue did not affect the versions of kvm package as shipped with Red
Hat Enterprise Linux 5 as they did not backport the upstream kvm commit
that introduced this issue.

This issue did not affect the versions of Linux kernel as shipped Red Hat
Enterprise Linux 6 as they did not backport the upstream kvm commit that
introduced this issue.

This issue did not affect the versions of Linux kernel as shipped Red Hat
Enterprise MRG as they did not provide support for the KVM subsystem.

CVSS v2 metrics

NOTE: The following CVSS v2 metrics and score provided are preliminary and subject to review.

Base Score 6.5
Base Metrics AV:A/AC:H/Au:S/C:C/I:C/A:C
Access Vector Adjacent Network
Access Complexity High
Authentication Single
Confidentiality Impact Complete
Integrity Impact Complete
Availability Impact Complete

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

Affected Packages State

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

Acknowledgements

Red Hat would like to thank Lars Bull of Google for reporting this issue.
Last Modified

CVE description copyright © 2017, The MITRE Corporation