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Fencer Vulns
high 7.2

CVE-2008-4405 json

xend in Xen 3.0.3 does not properly limit the contents of the /local/domain xenstore directory tree, and does not properly restrict a guest…

published 2008-10-03 18 y ago modified 2026-06-16 4 mo ago also EUVD-2008-4386

cvss
7.2
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.0%
EPSS 1.0% chance of exploitation in 30 days, percentile 64%
public exploits
1
Exploit-DB

Summary

xend in Xen 3.0.3 does not properly limit the contents of the /local/domain xenstore directory tree, and does not properly restrict a guest VM's write access within this tree, which allows guest OS users to cause a denial of service and possibly have unspecified other impact by writing to (1) console/tty, (2) console/limit, or (3) image/device-model-pid. NOTE: this issue was originally reported as an issue in libvirt 0.3.3 and xenstore, but CVE is considering the core issue to be related to Xen.

Patch / fix

  • xen RHEL 5 VIRTUALIZATION, RHEL 5 3.0.3-64.el5_2.9
  • xen-libs RHEL 5 3.0.3-64.el5_2.9

red hat advisories RHSA-2009:0003

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-2008-4405 updated cvss 5.0

xen: Multiple unsafe uses of guest-writable data from xenstore

  • Red Hat Enterprise Linux (v. 5 server) xen 3.0.3-64.el5_2.9, xen-libs 3.0.3-64.el5_2.9 Red Hat Enterprise Linux Desktop (v. 5 client) xen 3.0.3-64.el5_2.9, xen-libs 3.0.3-64.el5_2.9 Red Hat Enterprise Linux Desktop Multi OS (v. 5 client) xen 3.0.3-64.el5_2.9, xen-libs 3.0.3-64.el5_2.9 Red Hat Enterprise Linux Virtualization (v. 5 server) xen 3.0.3-64.el5_2.9, xen-libs 3.0.3-64.el5_2.9
    fixed: vendor fix RHSA-2009:0003

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

Timeline

  1. First public exploit (EDB-32446)
  2. Published

Exploit prediction

1.04% chance of exploitation in the next 30 days, higher than 64% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-32446 Xen 3.3 - XenStore Domain Configuration Data Unsafe Storage local, 2008-09-30
  • xenbits.xensource.com http://xenbits.xensource.com/staging/xen-3.3-testing.hg?rev/e0e17216ba70 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 7.2 AV:L/AC:L/Au:N/C:C/I:C/A:C

Classification

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

References

Sources

Fencer Vulns 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.