FreeBSD : xen-kernel -- some pmu and profiling hypercalls log without rate limiting (e4848ca4-8820-11e5-ab94-002590263bf5)

This script is Copyright (C) 2015 Tenable Network Security, Inc.


Synopsis :

The remote FreeBSD host is missing a security-related update.

Description :

The Xen Project reports :

HYPERCALL_xenoprof_op and HYPERVISOR_xenpmu_op log some errors and
attempts at invalid operations. These log messages are not
rate-limited, even though they can be triggered by guests.

A malicious guest could cause repeated logging to the hypervisor
console, leading to a Denial of Service attack.

See also :

http://xenbits.xen.org/xsa/advisory-152.html
http://www.nessus.org/u?e09a8d26

Solution :

Update the affected package.

Risk factor :

Low / CVSS Base Score : 2.1
(CVSS2#AV:L/AC:L/Au:N/C:N/I:N/A:P)

Family: FreeBSD Local Security Checks

Nessus Plugin ID: 86841 ()

Bugtraq ID:

CVE ID: CVE-2015-7971

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