CVE-2017-5526 Denial of service in n/a

Medium 6.5 Published 15 Mar 2017 Updated 5 Aug 2024

Local privileged users can cause a denial of service in QEMU via memory exhaustion triggered by repeated device unplug operations.

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-2017-5526?

CVE-2017-5526 is a medium-severity denial of service vulnerability in Debian Debian Linux, published on 15 Mar 2017. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Memory leak in hw/audio/es1370.c in QEMU (aka Quick Emulator) allows local guest OS privileged users to cause a denial of service (host memory consumption and QEMU process crash) via a large number of device unplug operations.

Weakness: CWE-401

Which versions are affected by CVE-2017-5526?

It affects 2 products.

Linux distribution packages (4)

`xen` SUSE:Linux Enterprise Desktop 12 SP3	All versions	`4.9.0_14-3.18.1`
`xen` SUSE:Linux Enterprise Server 12 SP3	All versions	`4.9.0_14-3.18.1`
`xen` SUSE:Linux Enterprise Server for SAP Applications 12 SP3	All versions	`4.9.0_14-3.18.1`
`xen` SUSE:Linux Enterprise Software Development Kit 12 SP3	All versions	`4.9.0_14-3.18.1`

Products include Debian Debian Linux, Qemu Qemu.

How do I fix CVE-2017-5526?

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-2017-5526 being exploited?

There is no known exploitation of CVE-2017-5526 in the wild and no public exploit code.

All Debian Debian Linux vulnerabilities

Sources

Also known as CVE-2017-8767, DEBIAN-CVE-2017-5526, GHSA-7j76-ppf8-pw3x, SUSE-SU-2017:2751-1, UBUNTU-CVE-2017-5526.