SUSE SLED12 / SLES12 Security Update : xen (SUSE-SU-2017:0983-1)

high Nessus Plugin ID 99302

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Synopsis

The remote SUSE host is missing one or more security updates.

Description

This update for xen to version 4.7.2 fixes the following issues: These security issues were fixed :

- CVE-2017-7228: Broken check in memory_exchange() permited PV guest breakout (bsc#1030442).

- XSA-206: Unprivileged guests issuing writes to xenstore were able to stall progress of the control domain or driver domain, possibly leading to a Denial of Service (DoS) of the entire host (bsc#1030144).

- CVE-2017-6505: The ohci_service_ed_list function in hw/usb/hcd-ohci.c allowed local guest OS users to cause a denial of service (infinite loop) via vectors involving the number of link endpoint list descriptors (bsc#1028235).

The update package also includes non-security fixes. See advisory for details.

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 Software Development Kit 12-SP2:zypper in -t patch SUSE-SLE-SDK-12-SP2-2017-572=1

SUSE Linux Enterprise Server 12-SP2:zypper in -t patch SUSE-SLE-SERVER-12-SP2-2017-572=1

SUSE Linux Enterprise Desktop 12-SP2:zypper in -t patch SUSE-SLE-DESKTOP-12-SP2-2017-572=1

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

See Also

https://www.suse.com/security/cve/CVE-2017-7228/

http://www.nessus.org/u?f09697ec

https://bugzilla.suse.com/show_bug.cgi?id=1014136

https://bugzilla.suse.com/show_bug.cgi?id=1015348

https://bugzilla.suse.com/show_bug.cgi?id=1022555

https://bugzilla.suse.com/show_bug.cgi?id=1026236

https://bugzilla.suse.com/show_bug.cgi?id=1027519

https://bugzilla.suse.com/show_bug.cgi?id=1028235

https://bugzilla.suse.com/show_bug.cgi?id=1029128

https://bugzilla.suse.com/show_bug.cgi?id=1029827

https://bugzilla.suse.com/show_bug.cgi?id=1030144

https://bugzilla.suse.com/show_bug.cgi?id=1030442

https://www.suse.com/security/cve/CVE-2017-6505/

Plugin Details

Severity: High

ID: 99302

File Name: suse_SU-2017-0983-1.nasl

Version: 3.14

Type: local

Agent: unix

Published: 4/12/2017

Updated: 6/3/2021

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.3

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.6

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

CVSS v3

Risk Factor: High

Base Score: 8.2

Temporal Score: 7.4

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

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

Vulnerability Information

CPE: p-cpe:/a:novell:suse_linux:xen, p-cpe:/a:novell:suse_linux:xen-debugsource, p-cpe:/a:novell:suse_linux:xen-doc-html, p-cpe:/a:novell:suse_linux:xen-libs, p-cpe:/a:novell:suse_linux:xen-libs-debuginfo, p-cpe:/a:novell:suse_linux:xen-tools, p-cpe:/a:novell:suse_linux:xen-tools-debuginfo, p-cpe:/a:novell:suse_linux:xen-tools-domu, p-cpe:/a:novell:suse_linux:xen-tools-domu-debuginfo, cpe:/o:novell:suse_linux:12

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 4/11/2017

Vulnerability Publication Date: 3/15/2017

Reference Information

CVE: CVE-2017-6505, CVE-2017-7228

IAVB: 2017-B-0042-S