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Fencer Intel
medium 5.2

CVE-2013-4554 json

Xen 3.0.3 through 4.1.x (possibly 4.1.6.1), 4.2.x (possibly 4.2.3), and 4.3.x (possibly 4.3.1) does not properly prevent access to hypercal…

published 12y ago modified 4mo ago also EUVD-2013-4413

cvss
5.2
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.6%
EPSS 0.6% chance of exploitation in 30 days, percentile 49%
public exploits
0
none known

Summary

Xen 3.0.3 through 4.1.x (possibly 4.1.6.1), 4.2.x (possibly 4.2.3), and 4.3.x (possibly 4.3.1) does not properly prevent access to hypercalls, which allows local guest users to gain privileges via a crafted application running in ring 1 or 2.

Patch / fix

  • kernel RHEL 5 2.6.18-371.6.1.el5
  • kernel-PAE RHEL 5 2.6.18-371.6.1.el5
  • kernel-xen RHEL 5 2.6.18-371.6.1.el5
  • kernel-kdump RHEL 5 2.6.18-371.6.1.el5
  • kernel-debuginfo-common RHEL 5 2.6.18-371.6.1.el5

red hat advisories RHSA-2014:0285

  • xen openSUSE Tumbleweed 4.7.0_12-1.3

opensuse advisories openSUSE-SU-2024:10196-1

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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-2013-4554 updated cvss 6.0

kernel: xen: hypercalls exposed to privilege rings 1 and 2 of HVM guests

  • Red Hat Enterprise Linux (v. 5 server) kernel 2.6.18-371.6.1.el5, kernel-PAE 2.6.18-371.6.1.el5, kernel-xen 2.6.18-371.6.1.el5, kernel-kdump 2.6.18-371.6.1.el5, kernel-debuginfo-common 2.6.18-371.6.1.el5 Red Hat Enterprise Linux Desktop (v. 5 client) kernel 2.6.18-371.6.1.el5, kernel-PAE 2.6.18-371.6.1.el5, kernel-xen 2.6.18-371.6.1.el5, kernel-kdump 2.6.18-371.6.1.el5, kernel-debuginfo-common 2.6.18-371.6.1.el5
    fixed: vendor fix RHSA-2014:0285

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

0.61% chance of exploitation in the next 30 days, higher than 49% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 5.2 AV:A/AC:L/Au:S/C:P/I:P/A:P

Classification

Weakness
  • CWE-264 Permissions, Privileges, and Access Controls

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.