CVE-2012-4535

low
Published 2012-11-21 · Modified 2026-04-29
CVSS v3
CVSS v2
1.9
VIR risk
1.9

Description

Xen 3.4 through 4.2, and possibly earlier versions, allows local guest OS administrators to cause a denial of service (Xen infinite loop and physical CPU consumption) by setting a VCPU with an "inappropriate deadline."

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-2012-4535

vendor Authored 2026-05-27

Vendor advisory: secalert@redhat.com — http://lists.xen.org/archives/html/xen-announce/2012-11/msg00001.html

OS impact

OSVersionStatusFixed in
debian debianbookwormfixed4.1.3-4
debian debianbullseyefixed4.1.3-4
debian debianforkyfixed4.1.3-4
debian debiansidfixed4.1.3-4
debian debiantrixiefixed4.1.3-4

References

CWEs

CWE-399

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