CVE-2014-8595

arch/x86/x86_emulate/x86_emulate.c in Xen 3.2.1 through 4.4.x does not properly check privileges,...

1.9 LowFix available

CVE-2014-8595 is a low vulnerability (CVSS 1.9) in Xen, published November 22, 2012. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.41%, the 36th percentile. Fixed in xen 4.4.1-4.

What does this mean?

Severity: 1.9 LowCVSS 2.0, NVD
Exploit chance: 0.41%EPSS, 36th percentile
Exploitation: None knownNot on CISA’s or ENISA’s lists
Fixed in: 4.4.1-4xen +4 more

Description

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.

Exploit likelihood

0.41%Down 0.9 points since Feb 4, 2022

Affected products

Affected packages

Affected packages
Package	Affected	Fixed
`xen` Debian:12	before 4.4.1-4	4.4.1-4
`xen` Debian:13	before 4.4.1-4	4.4.1-4
`xen` Debian:14	before 4.4.1-4	4.4.1-4
`xen` Debian:7 From an advisory covering 5 CVEs	before 4.1.4-3+deb7u4, plus listed versions 4.1.4-34.1.4-3+deb7u14.1.4-3+deb7u24.1.4-3+deb7u3	4.1.4-3+deb7u4
`xen` Ubuntu:14.04:LTS	before 4.4.1-0ubuntu0.14.04.2, plus listed versions 4.3.0-1ubuntu14.3.0-1ubuntu24.3.0-1ubuntu34.3.0-1ubuntu44.3.0-1ubuntu5 Show 6 moreShow less 4.4.0-0ubuntu34.4.0-0ubuntu44.4.0-0ubuntu54.4.0-0ubuntu5.14.4.0-0ubuntu5.24.4.1-0ubuntu0.14.04.1	4.4.1-0ubuntu0.14.04.2

What each source reports

NVD Score used1.9

Record: CVE-2014-8595
CVSS 2.0: 1.9 LowAV:L/AC:M/Au:N/C:N/I:N/A:P
Weakness: CWE-17
Updated: 2026-11-02

CVE ListNo score

Record: CVE-2014-8595
Updated: 2026-11-02

EUVDEUVD-2014-8432No score

Record: EUVD-2014-8432
Updated: 2026-11-03

GitHub AdvisoriesGHSA-6qqc-xj3c-9jj8No score

arch/x86/x86_emulate/x86_emulate.c in Xen 3.2.1 through 4.4.x does not properly check privileges,...

Record: GHSA-6qqc-xj3c-9jj8
Updated: 2026-11-02

OSVNo score

Record: CVE-2014-8595
Updated: 2026-11-02

OSVDEBIAN-CVE-2014-8595No score

Record: DEBIAN-CVE-2014-8595
Updated: 2026-11-02

OSVSUSE-SU-2015:0940-1No score

Security update for Xen

This update fixes the following security issues in Xen:

* CVE-2012-5510: Grant table version switch list corruption
  vulnerability (XSA-26)
* CVE-2012-5511: Several HVM operations do not validate the range of
  their inputs (XSA-27)
* CVE-2012-5513: XENMEM_exchange may overwrite hypervisor memory
  (XSA-29)
* CVE-2012-5514: Missing unlock in
  guest_physmap_mark_populate_on_demand() (XSA-30)
* CVE-2012-5515: Several memory hypercall operations allow invalid
  extent order values (XSA-31)

Also the following fix has been applied:

* bnc#777628 - guest 'disappears' after live migration
  Updated block-dmmd script

Security Issues references:

* CVE-2012-5513
  <http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-5513>
* CVE-2012-5514
  <http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-5514>
* CVE-2012-5511
  <http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-5511>
* CVE-2012-5510
  <http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-5510>
* CVE-2012-5515
  <http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-5515>

Record: SUSE-SU-2015:0940-1
Updated: 2026-11-02

OSVUBUNTU-CVE-2014-8595No score

Record: UBUNTU-CVE-2014-8595
Updated: 2026-11-02

History

History
Recorded	Changed	Sources
Nov 6, 2026	affected, facts
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

References

Show 47 moreShow less