CVE-2019-13164 Security feature bypass in n/a

High 7.8 Published Updated

An attacker can bypass network access controls in QEMU by exploiting a buffer size check failure in the bridge helper utility.

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-2019-13164?

CVE-2019-13164 is a high-severity vulnerability in Canonical Ubuntu Linux, published on 3 Jul 2019. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

qemu-bridge-helper.c in QEMU 3.1 and 4.0.0 does not ensure that a network interface name (obtained from bridge.conf or a --br=bridge option) is limited to the IFNAMSIZ size, which can lead to an ACL bypass.

Which versions are affected by CVE-2019-13164?

It affects 4 products.

Products include Canonical Ubuntu Linux, Debian Debian Linux, Opensuse Leap, Qemu Qemu.

How do I fix CVE-2019-13164?

Apply the vendor's patch.

Is CVE-2019-13164 being exploited?

There is no known exploitation of CVE-2019-13164 in the wild and no public exploit code.

All Canonical Ubuntu Linux vulnerabilities

Sources

Also known as DEBIAN-CVE-2019-13164, GHSA-5ff7-wj9x-5xc5, UBUNTU-CVE-2019-13164.

Is CVE-2019-13164 in your software?

Upload an SBOM and sbomify checks it against every vulnerability here, every day.

Check your SBOMs for free