CVE-2015-8701 Integer overflow in n/a

Medium 6.5 Published 29 Dec 2016 Updated 6 Aug 2024

A privileged guest user can trigger an off-by-one error in QEMU's Rocker switch emulation, causing host memory leakage or denial of service.

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-2015-8701?

CVE-2015-8701 is a medium-severity vulnerability in Qemu Qemu, 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 Rocker switch emulation support is vulnerable to an off-by-one error. It happens while processing transmit (tx) descriptors in 'tx_consume' routine, if a descriptor was to have more than allowed (ROCKER_TX_FRAGS_MAX=16) fragments. A privileged user inside guest could use this flaw to cause memory leakage on the host or crash the QEMU process instance resulting in DoS issue.

Weakness: CWE-193

Which versions are affected by CVE-2015-8701?

It affects 1 product.

Products include Qemu Qemu.

How do I fix CVE-2015-8701?

Apply the vendor's patch.

Is CVE-2015-8701 being exploited?

There is no known exploitation of CVE-2015-8701 in the wild and no public exploit code.

All Qemu Qemu vulnerabilities

Sources

Also known as DEBIAN-CVE-2015-8701, GHSA-2h29-rjh5-xxch.