PT-2008-5648 · Citrix+1 · Xen+1

Daniel Berrangé · Published 2008-10-03 · Updated 2017-09-29 · CVE-2008-4405

Positive Technologies (AI Summary)

CVSS v2.0

7.2

High

Base vector

AV:L/AC:L/Au:N/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions: Xen version 3.0.3

Description: The issue is related to the xend in Xen, which 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. This allows guest OS users to cause a denial of service and possibly have unspecified other impact by writing to console/tty, console/limit, or image/device-model-pid.

Recommendations: For Xen version 3.0.3, consider restricting write access to the xenstore directory tree to prevent guest OS users from causing a denial of service. As a temporary workaround, limit the guest VM's ability to write to console/tty, console/limit, and image/device-model-pid until a patch is available.

Exploit

Fix

DoS

Weakness Enumeration

CWE-264

Related Identifiers

CVE-2008-4405

RHSA-2009:0003

RHSA-2009_0003

Affected Products

Red Hat

Xen

References · 20

• 🔥 http://xenbits.xensource.com/staging/xen-3.3-testing.hg?rev/e0e17216ba70 · Exploit
• 🔥 https://exploit-db.com/exploits/32446 · Exploit
• http://redhat.com/support/errata/RHSA-2009-0003.html · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2008-4405 · Security Note
• http://mandriva.com/security/advisories?name=MDVSA-2009:016 · Vendor Advisory
• http://lists.opensuse.org/opensuse-security-announce/2009-09/msg00001.html · Vendor Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=464817 · Note
• https://bugzilla.redhat.com/show_bug.cgi?id=464818 · Note
• http://vupen.com/english/advisories/2008/2709 · Note
• https://access.redhat.com/security/cve/CVE-2008-4405 · Note
• https://access.redhat.com/errata/RHSA-2009:0003 · Note
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10627 · Note
• http://lists.xensource.com/archives/html/xen-devel/2008-09/msg00992.html · Note
• https://access.redhat.com/security/cve/CVE-2008-4993 · Note
• http://openwall.com/lists/oss-security/2008/09/30/6 · Note