SUSE SLES11 Security Update : xen (SUSE-SU-2017:1081-1)

critical Nessus Plugin ID 99580
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 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-2016-9603: A privileged user within the guest VM can cause a heap overflow in the device model process, potentially escalating their privileges to that of the device model process (bsc#1028655).

- CVE-2017-6414: Memory leak in the vcard_apdu_new function in card_7816.c in libcacard allowed local guest OS users to cause a denial of service (host memory consumption) via vectors related to allocating a new APDU object (bsc#1027570).

- 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).

- CVE-2017-2633: The VNC display driver support was vulnerable to an out-of-bounds memory access issue. A user/process inside guest could use this flaw to cause DoS (bsc#1026636).

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 11-SP4:zypper in -t patch sdksp4-xen-13069=1

SUSE Linux Enterprise Server 11-SP4:zypper in -t patch slessp4-xen-13069=1

SUSE Linux Enterprise Debuginfo 11-SP4:zypper in -t patch dbgsp4-xen-13069=1

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

See Also

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

https://bugzilla.suse.com/show_bug.cgi?id=1026636

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

https://bugzilla.suse.com/show_bug.cgi?id=1027570

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

https://bugzilla.suse.com/show_bug.cgi?id=1028655

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-2016-9603/

https://www.suse.com/security/cve/CVE-2017-2633/

https://www.suse.com/security/cve/CVE-2017-6414/

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

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

http://www.nessus.org/u?9fd4d64c

Plugin Details

Severity: Critical

ID: 99580

File Name: suse_SU-2017-1081-1.nasl

Version: 3.11

Type: local

Agent: unix

Published: 4/21/2017

Updated: 1/19/2021

Dependencies: ssh_get_info.nasl

Risk Information

VPR

Risk Factor: High

Score: 7.3

CVSS v2

Risk Factor: High

Base Score: 9

Temporal Score: 7

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

Temporal Vector: E:POC/RL:OF/RC:C

CVSS v3

Risk Factor: Critical

Base Score: 9.9

Temporal Score: 8.9

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

Temporal Vector: E:P/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-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: true

Exploit Ease: Exploits are available

Patch Publication Date: 4/20/2017

Vulnerability Publication Date: 3/15/2017

Reference Information

CVE: CVE-2016-9603, CVE-2017-2633, CVE-2017-6414, CVE-2017-6505, CVE-2017-7228