CVE-2014-9585 Security feature bypass in n/a

Low 2.1 Published Updated

Local attackers can bypass ASLR protection by guessing vDSO memory locations, facilitating further exploitation of the Linux kernel.

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-2014-9585?

CVE-2014-9585 is a low-severity vulnerability in Canonical Ubuntu Linux, published on 9 Jan 2015. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

The vdso_addr function in arch/x86/vdso/vma.c in the Linux kernel through 3.18.2 does not properly choose memory locations for the vDSO area, which makes it easier for local users to bypass the ASLR protection mechanism by guessing a location at the end of a PMD.

Which versions are affected by CVE-2014-9585?

It affects 19 products.

Products include Canonical Ubuntu Linux, Debian Debian Linux, Fedoraproject Fedora, Linux kernel, Opensuse Evergreen, Opensuse Opensuse and 13 more.

How do I fix CVE-2014-9585?

Apply the vendor's patch.

Is CVE-2014-9585 being exploited?

There is no known exploitation of CVE-2014-9585 in the wild and no public exploit code.

All Canonical Ubuntu Linux vulnerabilities

Sources

Also known as DEBIAN-CVE-2014-9585, GHSA-g7mm-wg9g-mhg5, UBUNTU-CVE-2014-9585.

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