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FreeBSD : xen-kernel -- arm: vgic-v2: GICD_SGIR is not properly emulated (785c86b1-27d6-11e5-a4a5-002590263bf5)

medium Nessus Plugin ID 84704

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Synopsis

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

Description

The Xen Project reports :

When decoding a guest write to a specific register in the virtual interrupt controller Xen would treat an invalid value as a critical error and crash the host.

By writing an invalid value to the GICD.SGIR register a guest can crash the host, resulting in a Denial of Service attack.

Solution

Update the affected package.

See Also

http://xenbits.xen.org/xsa/advisory-117.html

http://www.nessus.org/u?3a80d784

Plugin Details

Severity: Medium

ID: 84704

File Name: freebsd_pkg_785c86b127d611e5a4a5002590263bf5.nasl

Version: 2.4

Type: local

Published: 7/14/2015

Updated: 1/6/2021

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.0

CVSS v2

Risk Factor: Medium

Base Score: 4.9

Vector: CVSS2#AV:L/AC:L/Au:N/C:N/I:N/A:C

Vulnerability Information

CPE: p-cpe:/a:freebsd:freebsd:xen-kernel, cpe:/o:freebsd:freebsd

Required KB Items: Host/local_checks_enabled, Host/FreeBSD/release, Host/FreeBSD/pkg_info

Patch Publication Date: 7/11/2015

Vulnerability Publication Date: 2/12/2015

Reference Information

CVE: CVE-2015-0268