CVE-2012-0218

low
Published 2012-12-03 · Modified 2026-04-29
CVSS v3
CVSS v2
1.9
VIR risk
1.9

Description

Xen 3.4, 4.0, and 4.1, when the guest OS has not registered a handler for a syscall or sysenter instruction, does not properly clear a flag for exception injection when injecting a General Protection Fault, which allows local PV guest OS users to cause a denial of service (guest crash) by later triggering an exception that would normally be handled within Xen.

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-2012-0218

vendor Authored 2026-05-27

Vendor advisory: security@debian.org — http://lists.xen.org/archives/html/xen-announce/2012-06/msg00003.html

OS impact

OSVersionStatusFixed in
debian debianbookwormfixed4.1.3~rc1+hg-20120614.a9c0a89c08f2-1
debian debianbullseyefixed4.1.3~rc1+hg-20120614.a9c0a89c08f2-1
debian debianforkyfixed4.1.3~rc1+hg-20120614.a9c0a89c08f2-1
debian debiansidfixed4.1.3~rc1+hg-20120614.a9c0a89c08f2-1
debian debiantrixiefixed4.1.3~rc1+hg-20120614.a9c0a89c08f2-1

References

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