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Fencer Intel
low 1.9

CVE-2012-2934 json

Xen 4.0, and 4.1, when running a 64-bit PV guest on "older" AMD CPUs, does not properly protect against a certain AMD processor bug, which…

published 2012-12-03 13 y ago modified 2026-06-16 4 mo ago also EUVD-2012-2913

cvss
1.9
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 38%
public exploits
0
none known

Summary

Xen 4.0, and 4.1, when running a 64-bit PV guest on "older" AMD CPUs, does not properly protect against a certain AMD processor bug, which allows local guest OS users to cause a denial of service (host hang) via sequential execution of instructions across a non-canonical boundary, a different vulnerability than CVE-2012-0217.

Patch / fix

  • xen Debian 14, Debian 13, Debian 12 4.1.3~rc1+hg-20120614.a9c0a89c08f2-1

debian advisories DEBIAN-CVE-2012-2934

  • kernel RHEL 5 2.6.18-308.8.2.el5
  • kernel-PAE RHEL 5 2.6.18-308.8.2.el5
  • kernel-xen RHEL 5 2.6.18-308.8.2.el5
  • kernel-kdump RHEL 5 2.6.18-308.8.2.el5
  • kernel-debuginfo-common RHEL 5 2.6.18-308.8.2.el5

red hat advisories RHSA-2012:0721

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2012-2934 updated cvss 4.6

kernel: denial of service due to AMD Erratum #121

  • Red Hat Enterprise Linux 5 kernel-xen
    affected: no fix available
  • Red Hat Enterprise Linux (v. 5 server) kernel 2.6.18-308.8.2.el5, kernel-PAE 2.6.18-308.8.2.el5, kernel-xen 2.6.18-308.8.2.el5, kernel-kdump 2.6.18-308.8.2.el5, kernel-debuginfo-common 2.6.18-308.8.2.el5 Red Hat Enterprise Linux Desktop (v. 5 client) kernel 2.6.18-308.8.2.el5, kernel-PAE 2.6.18-308.8.2.el5, kernel-xen 2.6.18-308.8.2.el5, kernel-debuginfo-common 2.6.18-308.8.2.el5
    fixed: vendor fix RHSA-2012:0721
  • Red Hat Enterprise Linux 6 perf, kernel, python-perf, kernel-kdump, kernel-firmware, kernel-bootwrapper, +1 more Red Hat Enterprise MRG 2 kernel-rt, mrg-rt-release, kernel-rt-trace, kernel-rt-vanilla, kernel-rt-firmware
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.44% chance of exploitation in the next 30 days, higher than 38% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 1.9 AV:L/AC:M/Au:N/C:N/I:N/A:P

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.