Code Affecting xen package, versions <4.4.1-3ubuntu2


Severity

Recommended
medium

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.06% (29th percentile)

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  • Snyk IDSNYK-UBUNTU1504-XEN-365689
  • published19 Nov 2014
  • disclosed19 Nov 2014

Introduced: 19 Nov 2014

CVE-2014-8595  (opens in a new tab)
CWE-17  (opens in a new tab)

How to fix?

Upgrade Ubuntu:15.04 xen to version 4.4.1-3ubuntu2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream xen package and not the xen package as distributed by Ubuntu. See How to fix? for Ubuntu:15.04 relevant fixed versions and status.

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.

CVSS Scores

version 3.1