CVE-2014-8595

Impact:
Important
Public Date:
2014-11-18
CWE:
CWE-862
Bugzilla:
1160643: CVE-2014-8595 kernel: xen: Missing privilege level checks in x86 emulation of far branches (xsa110)

The MITRE CVE dictionary describes this issue as:

arch/x86/x86_emulate/x86_emulate.c in Xen 3.2.1 through 4.4.x does not properly check privileges, which allows local HVM guest users to gain privileges or cause a denial of service (crash) via a crafted (1) CALL, (2) JMP, (3) RETF, (4) LCALL, (5) LJMP, or (6) LRET far branch instruction.

Find out more about CVE-2014-8595 from the MITRE CVE dictionary dictionary and NIST NVD.

Statement

Not vulnerable.

This issue did not affect the versions of the kernel-xen package as shipped with Red Hat Enterprise Linux 5.

CVSS v2 metrics

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

Base Score 6.2
Base Metrics AV:L/AC:H/Au:N/C:C/I:C/A:C
Access Vector Local
Access Complexity High
Authentication None
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 Linux 5 kernel-xen Not affected

Acknowledgements

Red Hat would like to thank the Xen for reporting this issue.

External References

Last Modified

CVE description copyright © 2017, The MITRE Corporation

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