SUSE SLED12 / SLES12 Security Update : xen (SUSE-SU-2017:1147-1)

High Nessus Plugin ID 99962

Synopsis

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

Description

This update for xen fixes several issues. These security issues were fixed :

- A malicious 64-bit PV guest may be able to access all of system memory, allowing for all of privilege escalation, host crashes, and information leaks by placing a IRET hypercall in the middle of a multicall batch (XSA-213, bsc#1034843)

- A malicious pair of guests may be able to access all of system memory, allowing for all of privilege escalation, host crashes, and information leaks because of a missing check when transfering pages via GNTTABOP_transfer (XSA-214, bsc#1034844).

- CVE-2017-7718: hw/display/cirrus_vga_rop.h allowed local guest OS privileged users to cause a denial of service (out-of-bounds read and QEMU process crash) via vectors related to copying VGA data via the cirrus_bitblt_rop_fwd_transp_ and cirrus_bitblt_rop_fwd_ functions (bsc#1034994).

- CVE-2016-9603: A privileged user within the guest VM could have caused a heap overflow in the device model process, potentially escalating their privileges to that of the device model process (bsc#1028655)

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-SP1:zypper in -t patch SUSE-SLE-SDK-12-SP1-2017-661=1

SUSE Linux Enterprise Server 12-SP1:zypper in -t patch SUSE-SLE-SERVER-12-SP1-2017-661=1

SUSE Linux Enterprise Desktop 12-SP1:zypper in -t patch SUSE-SLE-DESKTOP-12-SP1-2017-661=1

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

See Also

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=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://bugzilla.suse.com/show_bug.cgi?id=1034843

https://bugzilla.suse.com/show_bug.cgi?id=1034844

https://bugzilla.suse.com/show_bug.cgi?id=1034845

https://bugzilla.suse.com/show_bug.cgi?id=1034994

https://bugzilla.suse.com/show_bug.cgi?id=1035483

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-2017-7718/

https://www.suse.com/security/cve/CVE-2017-7980/

http://www.nessus.org/u?bb974b43

Plugin Details

Severity: High

ID: 99962

File Name: suse_SU-2017-1147-1.nasl

Version: 3.10

Type: local

Agent: unix

Published: 2017/05/03

Updated: 2019/09/11

Dependencies: 12634

Risk Information

Risk Factor: High

CVSS v2.0

Base Score: 9

Temporal Score: 6.7

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

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

CVSS v3.0

Base Score: 9.9

Temporal Score: 8.6

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

Temporal Vector: CVSS:3.0/E:U/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-kmp-default, p-cpe:/a:novell:suse_linux:xen-kmp-default-debuginfo, 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: false

Exploit Ease: No known exploits are available

Patch Publication Date: 2017/05/02

Vulnerability Publication Date: 2017/03/15

Reference Information

CVE: CVE-2016-9603, CVE-2017-2633, CVE-2017-6414, CVE-2017-6505, CVE-2017-7718, CVE-2017-7980