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

High Nessus Plugin ID 99580

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/1022555

https://bugzilla.suse.com/1026636

https://bugzilla.suse.com/1027519

https://bugzilla.suse.com/1027570

https://bugzilla.suse.com/1028235

https://bugzilla.suse.com/1028655

https://bugzilla.suse.com/1029827

https://bugzilla.suse.com/1030144

https://bugzilla.suse.com/1030442

https://www.suse.com/security/cve/CVE-2016-9603.html

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

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

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

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

http://www.nessus.org/u?c1aaa23a

Plugin Details

Severity: High

ID: 99580

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

Version: $Revision: 3.4 $

Type: local

Agent: unix

Published: 2017/04/21

Modified: 2018/01/31

Dependencies: 12634

Risk Information

Risk Factor: High

CVSSv2

Base Score: 7.2

Temporal Score: 6

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

Temporal Vector: CVSS2#E:F/RL:OF/RC:ND

CVSSv3

Base Score: 8.2

Temporal Score: 7.5

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:F/RL:O/RC:X

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: 2017/04/20

Reference Information

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

OSVDB: 152424, 152779, 153023, 153753, 154912