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

This script is Copyright (C) 2017 Tenable Network Security, Inc.


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). These non-security issues were fixed :

- bsc#1015348: libvirtd didn't not start during boot

- bsc#1014136: kdump couldn't dump a kernel on SLES12-SP2
with Xen hypervisor.

- bsc#1026236: Fixed paravirtualized performance

- bsc#1022555: Timeout in 'execution of
/etc/xen/scripts/block add'

- bsc#1029827: Forward port xenstored

- bsc#1029128: Make xen to really produce xen.efi with
gcc48

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.

See also :

https://bugzilla.suse.com/1014136
https://bugzilla.suse.com/1015348
https://bugzilla.suse.com/1022555
https://bugzilla.suse.com/1026236
https://bugzilla.suse.com/1027519
https://bugzilla.suse.com/1028235
https://bugzilla.suse.com/1029128
https://bugzilla.suse.com/1029827
https://bugzilla.suse.com/1030144
https://bugzilla.suse.com/1030442
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?33ee3e20

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'.

Risk factor :

High / CVSS Base Score : 7.2
(CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C)
CVSS Temporal Score : 6.0
(CVSS2#E:F/RL:OF/RC:ND)
Public Exploit Available : true

Family: SuSE Local Security Checks

Nessus Plugin ID: 99302 ()

Bugtraq ID:

CVE ID: CVE-2017-6505
CVE-2017-7228

Ready to Amp Up Your Nessus Experience?

Get Nessus Professional to scan unlimited IPs, run compliance checks & more

Buy Nessus Professional Now