SUSE SLED12 / SLES12 Security Update : xen (SUSE-SU-2015:1908-1)

High Nessus Plugin ID 86756

Synopsis

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

Description

xen was updated to version 4.4.3 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).

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 :

zypper in -t patch SUSE-SLE-SDK-12-2015-795=1

SUSE Linux Enterprise Server 12 :

zypper in -t patch SUSE-SLE-SERVER-12-2015-795=1

SUSE Linux Enterprise Desktop 12 :

zypper in -t patch SUSE-SLE-DESKTOP-12-2015-795=1

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

See Also

https://bugzilla.suse.com/show_bug.cgi?id=877642

https://bugzilla.suse.com/show_bug.cgi?id=901488

https://bugzilla.suse.com/show_bug.cgi?id=907514

https://bugzilla.suse.com/show_bug.cgi?id=910258

https://bugzilla.suse.com/show_bug.cgi?id=918984

https://bugzilla.suse.com/show_bug.cgi?id=923967

https://bugzilla.suse.com/show_bug.cgi?id=932267

https://bugzilla.suse.com/show_bug.cgi?id=944463

https://bugzilla.suse.com/show_bug.cgi?id=944697

https://bugzilla.suse.com/show_bug.cgi?id=945167

https://bugzilla.suse.com/show_bug.cgi?id=947165

https://bugzilla.suse.com/show_bug.cgi?id=949138

https://bugzilla.suse.com/show_bug.cgi?id=950367

https://bugzilla.suse.com/show_bug.cgi?id=950703

https://bugzilla.suse.com/show_bug.cgi?id=950705

https://bugzilla.suse.com/show_bug.cgi?id=950706

https://www.suse.com/security/cve/CVE-2014-0222/

https://www.suse.com/security/cve/CVE-2015-4037/

https://www.suse.com/security/cve/CVE-2015-5239/

https://www.suse.com/security/cve/CVE-2015-6815/

https://www.suse.com/security/cve/CVE-2015-7311/

https://www.suse.com/security/cve/CVE-2015-7835/

https://www.suse.com/security/cve/CVE-2015-7969/

https://www.suse.com/security/cve/CVE-2015-7971/

http://www.nessus.org/u?6ae68ee8

Plugin Details

Severity: High

ID: 86756

File Name: suse_SU-2015-1908-1.nasl

Version: 2.10

Type: local

Agent: unix

Published: 2015/11/05

Updated: 2019/09/11

Dependencies: 12634

Risk Information

Risk Factor: High

CVSS v2.0

Base Score: 7.5

Temporal Score: 5.5

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

Temporal Vector: CVSS2#E:U/RL:OF/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: 2015/10/29

Vulnerability Publication Date: 2014/11/04

Reference Information

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

BID: 67357, 74809