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Fencer Intel
low 1.5

CVE-2013-4355 json

Xen 4.3.x and earlier does not properly handle certain errors, which allows local HVM guests to obtain hypervisor stack memory via a (1) po…

published 2013-10-01 13 y ago modified 2026-06-16 4 mo ago also EUVD-2013-4239

cvss
1.5
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 23%
public exploits
0
none known

Summary

Xen 4.3.x and earlier does not properly handle certain errors, which allows local HVM guests to obtain hypervisor stack memory via a (1) port or (2) memory mapped I/O write or (3) other unspecified operations related to addresses without associated memory.

Patch / fix

  • xen Debian 14, Debian 13, Debian 12 4.4.0-1

debian advisories DEBIAN-CVE-2013-4355

  • kernel RHEL 5 2.6.18-371.3.1.el5
  • kernel-PAE RHEL 5 2.6.18-371.3.1.el5
  • kernel-xen RHEL 5 2.6.18-371.3.1.el5
  • kernel-kdump RHEL 5 2.6.18-371.3.1.el5
  • kernel-debuginfo-common RHEL 5 2.6.18-371.3.1.el5

red hat advisories RHSA-2013:1790

  • xen openSUSE Tumbleweed 4.7.0_12-1.3

opensuse advisories openSUSE-SU-2024:10196-1

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-2013-4355 updated cvss 2.3

Kernel: Xen: Xsa-63: information leak via I/O instruction emulation

  • Red Hat Enterprise Linux (v. 5 server) kernel 2.6.18-371.3.1.el5, kernel-PAE 2.6.18-371.3.1.el5, kernel-xen 2.6.18-371.3.1.el5, kernel-kdump 2.6.18-371.3.1.el5, kernel-debuginfo-common 2.6.18-371.3.1.el5 Red Hat Enterprise Linux Desktop (v. 5 client) kernel 2.6.18-371.3.1.el5, kernel-PAE 2.6.18-371.3.1.el5, kernel-xen 2.6.18-371.3.1.el5, kernel-debuginfo-common 2.6.18-371.3.1.el5
    fixed: vendor fix RHSA-2013:1790

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

0.31% chance of exploitation in the next 30 days, higher than 23% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 1.5 AV:L/AC:M/Au:S/C:P/I:N/A:N

Classification

Weakness
  • CWE-200 Exposure of Sensitive Information to an Unauthorized Actor

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.