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5.2

Xen hypervisor allows local users to crash the host

CVE-2014-1893 · published 12 years ago
Summary

The Xen hypervisor (versions 4.1, 3.3, 3.2 and earlier) contains a coding error that can be triggered by someone with access to the machine. By exploiting this error, a local user can cause the processor to stop working, leading to a denial‑of‑service condition. Apply the vendor’s security updates or patches to fix the problem and limit local access to trusted users.

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software
VendorProductAffected versions
xen xen <= 4.1.6.1
3.2.0
3.2.1
3.2.2
3.2.3
3.3.0
3.3.1
3.3.2
3.4.0
3.4.1
3.4.2
3.4.3
12 more version ranges
cpe:2.3:o:xen:xen:*:*:*:*:*:*:*:*
Original advisory text
Multiple integer overflows in the (1) FLASK_GETBOOL and (2) FLASK_SETBOOL suboperations in the flask hypercall in Xen 4.1.x, 3.3.x, 3.2.x, and earlier, when XSM is enabled, allow local users to cau...
Multiple integer overflows in the (1) FLASK_GETBOOL and (2) FLASK_SETBOOL suboperations in the flask hypercall in Xen 4.1.x, 3.3.x, 3.2.x, and earlier, when XSM is enabled, allow local users to cause a denial of service (processor fault) via unspecified vectors, a different vulnerability than CVE-2014-1891, CVE-2014-1892, and CVE-2014-1894.
References
Fix within
Internet-facing 60 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit (estimated)
  • Gives an attacker partial control (estimated)
Severity
5.2 Medium
Exploitation
<1% chance of attack within 30 days
Type
CWE-189Numeric Errors
Timeline
Published1 Apr 2014
Updated4 Nov 2026
First seen29 Sep 2026
Sources
CVE-2014-1893 · NVD
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