PT-2013-1818 · Xen+1 · Xen+1

Published 2013-02-14 · Updated 2024-06-15 · CVE-2012-5634

Positive Technologies (AI Summary)

CVSS v2.0

6.1

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Xen versions 4.0, 4.1.x, 4.2.x

Description The issue arises when Xen uses Intel VT-d for PCI passthrough and does not properly configure VT-d for devices behind a legacy PCI Bridge. This allows local guests to cause a denial of service to other guests by injecting an interrupt.

Recommendations For versions 4.0, 4.1.x, and 4.2.x, consider disabling the PCI passthrough feature for devices behind a legacy PCI Bridge until a proper configuration method is available. Restrict access to the VT-d configuration to minimize the risk of exploitation. Avoid using the Intel VT-d for PCI passthrough with devices behind a legacy PCI Bridge in these versions.

Fix

DoS

Weakness Enumeration

CWE-16

Related Identifiers

CVE-2012-5634

DSA-2636-1

OPENSUSE-SU-2024:10196-1

SUSE-SU-2013_0599-1

SUSE-SU-2015:0944-1

Affected Products

Suse

Xen

References · 158

• https://osv.dev/vulnerability/openSUSE-SU-2024:10196-1 · Vendor Advisory
• http://lists.opensuse.org/opensuse-updates/2013-06/msg00049.html · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-5634 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2012-5634 · Vendor Advisory
• http://lists.opensuse.org/opensuse-updates/2013-04/msg00052.html · Vendor Advisory
• http://security.gentoo.org/glsa/glsa-201309-24.xml · Vendor Advisory
• http://debian.org/security/2013/dsa-2636 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-0153 · Security Note
• http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00021.html · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2012-5634 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2012-5634 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-6075 · Security Note
• https://osv.dev/vulnerability/CVE-2012-5634 · Vendor Advisory
• http://lists.opensuse.org/opensuse-updates/2013-04/msg00051.html · Vendor Advisory
• https://suse.com/security/cve/CVE-2014-3672 · Note