SUSE SLED11 / SLES11 Security Update : xen (SUSE-SU-2015:1853-1)

This script is Copyright (C) 2015-2016 Tenable Network Security, Inc.


Synopsis :

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

Description :

xen was updated to fix nine security issues.

These security issues were fixed :

- CVE-2015-4037: The slirp_smb function in net/slirp.c
created temporary files with predictable names, which
allowed local users to cause a denial of service
(instantiation failure) by creating /tmp/qemu-smb.*-*
files before the program (bsc#932267).

- CVE-2014-0222: Integer overflow in the qcow_open
function allowed remote attackers to cause a denial of
service (crash) via a large L2 table in a QCOW version 1
image (bsc#877642).

- CVE-2015-7835: Uncontrolled creation of large page
mappings by PV guests (bsc#950367).

- CVE-2015-7311: libxl in Xen did not properly handle the
readonly flag on disks when using the qemu-xen device
model, which allowed local guest users to write to a
read-only disk image (bsc#947165).

- CVE-2015-5239: Integer overflow in vnc_client_read() and
protocol_client_msg() (bsc#944463).

- CVE-2015-6815: With e1000 NIC emulation support it was
possible to enter an infinite loop (bsc#944697).

- CVE-2015-7969: Leak of main per-domain vcpu pointer
array leading to denial of service (bsc#950703).

- CVE-2015-7969: Leak of per-domain profiling- related
vcpu pointer array leading to denial of service
(bsc#950705).

- CVE-2015-7971: Some pmu and profiling hypercalls log
without rate limiting (bsc#950706).

These non-security issues were fixed :

- bsc#907514: Bus fatal error: SLES 12 sudden reboot has
been observed

- bsc#910258: SLES12 Xen host crashes with FATAL NMI after
shutdown of guest with VT-d NIC

- bsc#918984: Bus fatal error: SLES11-SP4 sudden reboot
has been observed

- bsc#923967: Partner-L3: Bus fatal error: SLES11-SP3
sudden reboot has been observed

- bsc#941074: Device 51728 could not be connected. Hotplug
scripts not working

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/877642
https://bugzilla.suse.com/907514
https://bugzilla.suse.com/910258
https://bugzilla.suse.com/918984
https://bugzilla.suse.com/923967
https://bugzilla.suse.com/932267
https://bugzilla.suse.com/941074
https://bugzilla.suse.com/944463
https://bugzilla.suse.com/944697
https://bugzilla.suse.com/947165
https://bugzilla.suse.com/950367
https://bugzilla.suse.com/950703
https://bugzilla.suse.com/950705
https://bugzilla.suse.com/950706
https://www.suse.com/security/cve/CVE-2014-0222.html
https://www.suse.com/security/cve/CVE-2015-4037.html
https://www.suse.com/security/cve/CVE-2015-5239.html
https://www.suse.com/security/cve/CVE-2015-6815.html
https://www.suse.com/security/cve/CVE-2015-7311.html
https://www.suse.com/security/cve/CVE-2015-7835.html
https://www.suse.com/security/cve/CVE-2015-7969.html
https://www.suse.com/security/cve/CVE-2015-7971.html
http://www.nessus.org/u?0a8c7964

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-SP3 :

zypper in -t patch sdksp3-xen-12174=1

SUSE Linux Enterprise Server 11-SP3 :

zypper in -t patch slessp3-xen-12174=1

SUSE Linux Enterprise Desktop 11-SP3 :

zypper in -t patch sledsp3-xen-12174=1

SUSE Linux Enterprise Debuginfo 11-SP3 :

zypper in -t patch dbgsp3-xen-12174=1

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

Risk factor :

High / CVSS Base Score : 7.5
(CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P)
CVSS Temporal Score : 5.5
(CVSS2#E:U/RL:OF/RC:C)
Public Exploit Available : false

Family: SuSE Local Security Checks

Nessus Plugin ID: 86704 ()

Bugtraq ID: 67357
74809

CVE ID: CVE-2014-0222
CVE-2015-4037
CVE-2015-5239
CVE-2015-6815
CVE-2015-7311
CVE-2015-7835
CVE-2015-7969
CVE-2015-7971

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