CVE-2016-1922

Description

QEMU (aka Quick Emulator) built with the TPR optimization for 32-bit Windows guests support is vulnerable to a null pointer dereference flaw. It occurs while doing I/O port write operations via hmp interface. In that, 'current_cpu' remains null, which leads to the null pointer dereference. A user or process could use this flaw to crash the QEMU instance, resulting in DoS issue.

How to fix CVE-2016-1922

To remediate CVE-2016-1922, upgrade the affected package to a fixed version below.

• —upgrade to 1:2.5+dfsg-4 or later

Is CVE-2016-1922 being exploited?

Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.

Affected packages (1)

• from 0, < 1:2.5+dfsg-4

CVSS scores

References (1)

• ADVISORYsecurity-tracker.debian.org/tracker/CVE-2016-1922