CVE-2016-1981 Denial of service in n/a

What is CVE-2016-1981?

CVE-2016-1981 is a medium-severity denial of service vulnerability in Debian Debian Linux, published on 29 Dec 2016. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

QEMU (aka Quick Emulator) built with the e1000 NIC emulation support is vulnerable to an infinite loop issue. It could occur while processing data via transmit or receive descriptors, provided the initial receive/transmit descriptor head (TDH/RDH) is set outside the allocated descriptor buffer. A privileged user inside guest could use this flaw to crash the QEMU instance resulting in DoS.

Weakness: CWE-835

Which versions are affected by CVE-2016-1981?

It affects 2 products.

Products include Debian Debian Linux, Qemu Qemu.

How do I fix CVE-2016-1981?

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-2016-1981 being exploited?

There is no known exploitation of CVE-2016-1981 in the wild and no public exploit code.

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All Debian Debian Linux vulnerabilities

Sources

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

Also known as DEBIAN-CVE-2016-1981, GHSA-ch9p-9c28-4r3p, UBUNTU-CVE-2016-1981.