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

High Nessus Plugin ID 103636

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: 3.7

Type: local

Agent: unix

Published: 2017/10/03

Updated: 2019/09/11

Dependencies: 12634

Risk Information

Risk Factor: High

CVSS v2.0

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 v3.0

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: p-cpe:/a:novell:suse_linux:xen, p-cpe:/a:novell:suse_linux:xen-doc-html, p-cpe:/a:novell:suse_linux:xen-doc-pdf, p-cpe:/a:novell:suse_linux:xen-kmp-default, p-cpe:/a:novell:suse_linux:xen-kmp-pae, p-cpe:/a:novell:suse_linux:xen-libs, p-cpe:/a:novell:suse_linux:xen-tools, p-cpe:/a:novell:suse_linux:xen-tools-domU, cpe:/o:novell:suse_linux:11

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

Exploit Available: false

Exploit Ease: No known exploits are available

Patch Publication Date: 2017/09/18

Vulnerability Publication Date: 2017/09/12

Reference Information

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