Severity

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Fedora 23 : xen-4.5.2-7.fc23 (2016-2c15b72b01)

high Nessus Plugin ID 89503

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New! Plugin Severity Now Using CVSS v3

The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Synopsis

The remote Fedora host is missing a security update.

Description

PV superpage functionality missing sanity checks [XSA-167, CVE-2016-1570] VMX: intercept issue with INVLPG on non-canonical address [XSA-168, CVE-2016-1571] Qemu: pci: NULL pointer dereference issue CVE-2015-7549 qemu: DoS by infinite loop in ehci_advance_state CVE-2015-8558 qemu: Heap-based buffer overrun during VM migration CVE-2015-8666 Qemu: net: vmxnet3: incorrect l2 header validation leads to a crash via assert(2) call CVE-2015-8744 qemu: Support reading IMR registers on bar0 CVE-2015-8745 Qemu: net: vmxnet3: host memory leakage CVE-2015-8567 CVE-2015-8568 Qemu: net: ne2000: OOB memory access in ioport r/w functions CVE-2015-8743

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

Update the affected xen package.

Plugin Details

Severity: High

ID: 89503

File Name: fedora_2016-2c15b72b01.nasl

Version: 1.4

Type: local

Agent: unix

Family: Fedora Local Security Checks

Published: 3/4/2016

Updated: 1/11/2021

Dependencies: ssh_get_info.nasl

Risk Information

VPR

Risk Factor: High

Score: 7.7

CVSS v2

Risk Factor: Medium

Base Score: 6.9

Vector: AV:L/AC:M/Au:N/C:C/I:C/A:C

CVSS v3

Risk Factor: High

Base Score: 8.5

Vector: CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

Vulnerability Information

CPE: p-cpe:/a:fedoraproject:fedora:xen, cpe:/o:fedoraproject:fedora:23

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list

Patch Publication Date: 1/28/2016

Reference Information

CVE: CVE-2015-7549, CVE-2015-8558, CVE-2015-8567, CVE-2015-8568, CVE-2015-8666, CVE-2015-8743, CVE-2015-8744, CVE-2015-8745, CVE-2016-1570, CVE-2016-1571

FEDORA: 2016-2c15b72b01