CVE-2016-7944 Integer overflow in n/a

Critical 9.8 Published Updated

An integer overflow in libXfixes allows remote X servers to gain privileges by sending a specific length value, affecting 32-bit platforms.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2016-7944?

CVE-2016-7944 is a critical vulnerability in Fedoraproject Fedora, published on 13 Dec 2016. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Integer overflow in X.org libXfixes before 5.0.3 on 32-bit platforms might allow remote X servers to gain privileges via a length value of INT_MAX, which triggers the client to stop reading data and get out of sync.

Weakness: CWE-264, CWE-190

Which versions are affected by CVE-2016-7944?

It affects 2 products.

Linux distribution packages (3)
xorg-x11-libXfixes SUSE:Linux Enterprise Server 11 SP4All versions7.4-1.20.1
xorg-x11-libXfixes SUSE:Linux Enterprise Server for SAP Applications 11 SP4All versions7.4-1.20.1
xorg-x11-libXfixes SUSE:Linux Enterprise Software Development Kit 11 SP4All versions7.4-1.20.1

Products include Fedoraproject Fedora, X.org Libxfixes.

How do I fix CVE-2016-7944?

Upgrade to a fixed version.

Is CVE-2016-7944 being exploited?

There is no known exploitation of CVE-2016-7944 in the wild and no public exploit code.

All Fedoraproject Fedora vulnerabilities

Sources

Also known as ALPINE-CVE-2016-7944, DEBIAN-CVE-2016-7944, DLA-654-1, GHSA-j7xf-885g-gx3g, SUSE-SU-2016:3172-1, UBUNTU-CVE-2016-7944 and 1 more.

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