CVE-2015-4106 Privilege escalation in n/a

Medium 4.6 Published Updated

Local guests can exploit improper PCI config space restrictions in QEMU to escalate privileges or crash the host system.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
Available

What is CVE-2015-4106?

CVE-2015-4106 is a medium-severity vulnerability in Canonical Ubuntu Linux, published on 3 Jun 2015. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

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.

Weakness: CWE-863

Which versions are affected by CVE-2015-4106?

It affects 8 products.

Products include Canonical Ubuntu Linux, Citrix Xenserver, Debian Debian Linux, Fedoraproject Fedora, Qemu Qemu, Suse Linux Enterprise Desktop and 2 more.

How do I fix CVE-2015-4106?

Apply the vendor's patch.

Is CVE-2015-4106 being exploited?

There is no known exploitation of CVE-2015-4106 in the wild and no public exploit code.

All Canonical Ubuntu Linux vulnerabilities

Sources

Also known as DEBIAN-CVE-2015-4106, GHSA-53r2-p844-jg4x, UBUNTU-CVE-2015-4106.

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