CVE-2015-4106: Canonical Ubuntu Linux

Medium severity, CVSS 4.6. EPSS: 0.5% chance of exploitation in the next 30 days.

QEMU does not properly restrict write access to the PCI config space for certain PCI pass-through devices, which might allow local x86 HVM guests to gain privileges, cause a denial of service (host crash), obtain sensitive information, or possibly have other unspecified impact via unknown vectors.

Affected products

• Canonical Ubuntu Linux: version 12.04 only; version 14.04 only; version 14.10 only; version 15.04 only
• Citrix Xenserver: version 6.0 only; version 6.0.2 only; version 6.1.0 only; version 6.2.0 only; version 6.5 only
• Debian Debian Linux: version 7.0 only; version 8.0 only
• Fedoraproject Fedora: version 20 only; version 21 only; version 22 only
• Qemu Qemu: up to and including 2.3.1
• Suse Linux Enterprise Desktop: version 11 only; version 12 only
• Suse Linux Enterprise Server: version 11 only; version 12 only
• Suse Linux Enterprise Software Development Kit: version 11 only; version 12 only

Published 2015-06-03. Last modified 2026-06-17.