CVE-2016-8669 Denial of service in n/a

What is CVE-2016-8669?

CVE-2016-8669 is a medium-severity denial of service vulnerability in Debian Debian Linux, published on 4 Nov 2016. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

The serial_update_parameters function in hw/char/serial.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (divide-by-zero error and QEMU process crash) via vectors involving a value of divider greater than baud base.

Weakness: CWE-369

Which versions are affected by CVE-2016-8669?

It affects 5 products.

Products include Debian Debian Linux, Opensuse Leap, Qemu Qemu, Redhat Openstack, Redhat Virtualization.

How do I fix CVE-2016-8669?

Apply the vendor's patch.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2016-8669 being exploited?

There is no known exploitation of CVE-2016-8669 in the wild and no public exploit code.

Other vulnerabilities in Debian Debian Linux

• CVE-2015-3306 ProFTPD Improper Access Control Exploited Critical 10.0
• CVE-2025-49113 RoundCube Webmail Deserialization of Untrusted Data Exploited Critical 9.9
• CVE-2026-24061 GNU InetUtils Argument Injection Exploited Critical 9.8
• CVE-2025-39682 Linux Kernel Improper Check for Unusual or Exceptional Conditions Exploited Critical 9.8
• CVE-2024-9680 Mozilla Firefox Use-After-Free Exploited Critical 9.8

All Debian Debian Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2016-8669, GHSA-6gxg-vjwr-3339, UBUNTU-CVE-2016-8669.