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

medium Nessus Plugin ID 86756

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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'.

Plugin Details

Severity: Medium

ID: 86756

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

Version: 2.12

Type: local

Agent: unix

Family: SuSE Local Security Checks

Published: 11/5/2015

Updated: 1/6/2021

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.5

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

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.7

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

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:novell:suse_linux:xen-debugsource, p-cpe:/a:novell:suse_linux:xen-tools, p-cpe:/a:novell:suse_linux:xen-tools-domu-debuginfo, cpe:/o:novell:suse_linux:12, 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-tools-domu, p-cpe:/a:novell:suse_linux:xen, p-cpe:/a:novell:suse_linux:xen-tools-debuginfo, p-cpe:/a:novell:suse_linux:xen-libs-debuginfo, p-cpe:/a:novell:suse_linux:xen-libs, p-cpe:/a:novell:suse_linux:xen-doc-html

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/SuSE/release, Host/SuSE/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 10/29/2015

Vulnerability Publication Date: 11/4/2014

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

Detections

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