SUSE SLES11 Security Update : xen (SUSE-SU-2017:2611-1)

high Nessus Plugin ID 103636

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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 SUSE host is missing one or more security updates.

Description

This update for xen fixes several issues. These security issues were fixed :

- CVE-2017-14316: Missing bound check in function `alloc_heap_pages` for an internal array allowed attackers using crafted hypercalls to execute arbitrary code within Xen (XSA-231, bsc#1056278)

- CVE-2017-14317: A race in cxenstored may have cause a double-free allowind for DoS of the xenstored daemon (XSA-233, bsc#1056281).

- CVE-2017-14319: An error while handling grant mappings allowed malicious or buggy x86 PV guest to escalate its privileges or crash the hypervisor (XSA-234, bsc#1056282).

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

Solution

To install this SUSE Security Update use YaST online_update.
Alternatively you can run the command listed for your product :

SUSE Linux Enterprise Server 11-SP3-LTSS:zypper in -t patch slessp3-xen-13283=1

SUSE Linux Enterprise Point of Sale 11-SP3:zypper in -t patch sleposp3-xen-13283=1

SUSE Linux Enterprise Debuginfo 11-SP3:zypper in -t patch dbgsp3-xen-13283=1

To bring your system up-to-date, use 'zypper patch'.

See Also

https://bugzilla.suse.com/show_bug.cgi?id=1056278

https://bugzilla.suse.com/show_bug.cgi?id=1056281

https://bugzilla.suse.com/show_bug.cgi?id=1056282

https://www.suse.com/security/cve/CVE-2017-14316/

https://www.suse.com/security/cve/CVE-2017-14317/

https://www.suse.com/security/cve/CVE-2017-14319/

http://www.nessus.org/u?cd46cd03

Plugin Details

Severity: High

ID: 103636

File Name: suse_SU-2017-2611-1.nasl

Version: 3.9

Type: local

Agent: unix

Published: 10/3/2017

Updated: 1/19/2021

Dependencies: ssh_get_info.nasl

Risk Information

VPR

Risk Factor: Medium

Score: 6.5

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.3

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

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.7

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

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:2.3:o:novell:suse_linux:11:*:*:*:*:*:*:*, p-cpe:2.3:a:novell:suse_linux:xen-kmp-default:*:*:*:*:*:*:*, p-cpe:2.3:a:novell:suse_linux:xen:*:*:*:*:*:*:*, p-cpe:2.3:a:novell:suse_linux:xen-doc-html:*:*:*:*:*:*:*, p-cpe:2.3:a:novell:suse_linux:xen-doc-pdf:*:*:*:*:*:*:*, p-cpe:2.3:a:novell:suse_linux:xen-kmp-pae:*:*:*:*:*:*:*, p-cpe:2.3:a:novell:suse_linux:xen-libs:*:*:*:*:*:*:*, p-cpe:2.3:a:novell:suse_linux:xen-tools:*:*:*:*:*:*:*, p-cpe:2.3:a:novell:suse_linux:xen-tools-domu:*:*:*:*:*:*:*

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

Exploit Ease: No known exploits are available

Patch Publication Date: 9/18/2017

Vulnerability Publication Date: 9/12/2017

Reference Information

CVE: CVE-2017-14316, CVE-2017-14317, CVE-2017-14319