CVE-2014-7156

low
Published 2014-10-02 · Modified 2026-05-06
CVSS v3
CVSS v2
3.3
VIR risk
3.3

Description

The x86_emulate function in arch/x86/x86_emulate/x86_emulate.c in Xen 3.3.x through 4.4.x does not check the supervisor mode permissions for instructions that generate software interrupts, which allows local HVM guest users to cause a denial of service (guest crash) via unspecified vectors.

Predictions

Exploit likelihood
20%
Patch ETA

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2014-7156

vendor Authored 2026-05-27

Vendor advisory: cve@mitre.org — http://xenbits.xen.org/xsa/advisory-106.html

OS impact

OSVersionStatusFixed in
debian debianbookwormfixed4.4.1-3
debian debianbullseyefixed4.4.1-3
debian debianforkyfixed4.4.1-3
debian debiansidfixed4.4.1-3
debian debiantrixiefixed4.4.1-3

References

CWEs

CWE-264

Verify integrity in audit chain (admin only). AS-IS.