SUSE SLED12 / SLES12 Security Update : kernel (SUSE-SU-2016:0168-1)

high Nessus Plugin ID 88006
New! Plugin Severity Now Using CVSS v3

The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Synopsis

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

Description

The SUSE Linux Enterprise 12 kernel was updated to receive various security and bugfixes.

Following security bugs were fixed :

- CVE-2015-7550: A local user could have triggered a race between read and revoke in keyctl (bnc#958951).

- CVE-2015-8539: A negatively instantiated user key could have been used by a local user to leverage privileges (bnc#958463).

- CVE-2015-8543: The networking implementation in the Linux kernel did not validate protocol identifiers for certain protocol families, which allowed local users to cause a denial of service (NULL function pointer dereference and system crash) or possibly gain privileges by leveraging CLONE_NEWUSER support to execute a crafted SOCK_RAW application (bnc#958886).

- CVE-2015-8550: Compiler optimizations in the XEN PV backend drivers could have lead to double fetch vulnerabilities, causing denial of service or arbitrary code execution (depending on the configuration) (bsc#957988).

- CVE-2015-8551, CVE-2015-8552: xen/pciback: For XEN_PCI_OP_disable_msi[|x] only disable if device has MSI(X) enabled (bsc#957990).

- CVE-2015-8569: The (1) pptp_bind and (2) pptp_connect functions in drivers/net/ppp/pptp.c in the Linux kernel did not verify an address length, which allowed local users to obtain sensitive information from kernel memory and bypass the KASLR protection mechanism via a crafted application (bnc#959190).

- CVE-2015-8575: Validate socket address length in sco_sock_bind() to prevent information leak (bsc#959399).

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 Workstation Extension 12 :

zypper in -t patch SUSE-SLE-WE-12-2016-107=1

SUSE Linux Enterprise Software Development Kit 12 :

zypper in -t patch SUSE-SLE-SDK-12-2016-107=1

SUSE Linux Enterprise Server 12 :

zypper in -t patch SUSE-SLE-SERVER-12-2016-107=1

SUSE Linux Enterprise Module for Public Cloud 12 :

zypper in -t patch SUSE-SLE-Module-Public-Cloud-12-2016-107=1

SUSE Linux Enterprise Live Patching 12 :

zypper in -t patch SUSE-SLE-Live-Patching-12-2016-107=1

SUSE Linux Enterprise Desktop 12 :

zypper in -t patch SUSE-SLE-DESKTOP-12-2016-107=1

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

See Also

https://bugzilla.suse.com/show_bug.cgi?id=758040

https://bugzilla.suse.com/show_bug.cgi?id=902606

https://bugzilla.suse.com/show_bug.cgi?id=924919

https://bugzilla.suse.com/show_bug.cgi?id=935087

https://bugzilla.suse.com/show_bug.cgi?id=937261

https://bugzilla.suse.com/show_bug.cgi?id=943959

https://bugzilla.suse.com/show_bug.cgi?id=945649

https://bugzilla.suse.com/show_bug.cgi?id=949440

https://bugzilla.suse.com/show_bug.cgi?id=951155

https://bugzilla.suse.com/show_bug.cgi?id=951199

https://bugzilla.suse.com/show_bug.cgi?id=951392

https://bugzilla.suse.com/show_bug.cgi?id=951615

https://bugzilla.suse.com/show_bug.cgi?id=951638

https://bugzilla.suse.com/show_bug.cgi?id=952579

https://bugzilla.suse.com/show_bug.cgi?id=952976

https://bugzilla.suse.com/show_bug.cgi?id=956708

https://bugzilla.suse.com/show_bug.cgi?id=956801

https://bugzilla.suse.com/show_bug.cgi?id=956876

https://bugzilla.suse.com/show_bug.cgi?id=957395

https://bugzilla.suse.com/show_bug.cgi?id=957546

https://bugzilla.suse.com/show_bug.cgi?id=957988

https://bugzilla.suse.com/show_bug.cgi?id=957990

https://bugzilla.suse.com/show_bug.cgi?id=958463

https://bugzilla.suse.com/show_bug.cgi?id=958504

https://bugzilla.suse.com/show_bug.cgi?id=958510

https://bugzilla.suse.com/show_bug.cgi?id=958647

https://bugzilla.suse.com/show_bug.cgi?id=958886

https://bugzilla.suse.com/show_bug.cgi?id=958951

https://bugzilla.suse.com/show_bug.cgi?id=959190

https://bugzilla.suse.com/show_bug.cgi?id=959364

https://bugzilla.suse.com/show_bug.cgi?id=959399

https://bugzilla.suse.com/show_bug.cgi?id=959436

https://bugzilla.suse.com/show_bug.cgi?id=959705

https://bugzilla.suse.com/show_bug.cgi?id=960300

https://www.suse.com/security/cve/CVE-2015-7550/

https://www.suse.com/security/cve/CVE-2015-8539/

https://www.suse.com/security/cve/CVE-2015-8543/

https://www.suse.com/security/cve/CVE-2015-8550/

https://www.suse.com/security/cve/CVE-2015-8551/

https://www.suse.com/security/cve/CVE-2015-8552/

https://www.suse.com/security/cve/CVE-2015-8569/

https://www.suse.com/security/cve/CVE-2015-8575/

http://www.nessus.org/u?ceb6abc6

Plugin Details

Severity: High

ID: 88006

File Name: suse_SU-2016-0168-1.nasl

Version: 2.13

Type: local

Agent: unix

Published: 1/20/2016

Updated: 1/6/2021

Dependencies: ssh_get_info.nasl

Risk Information

VPR

Risk Factor: Medium

Score: 6.5

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.3

Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C

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

CVSS v3

Risk Factor: High

Base Score: 8.2

Temporal Score: 7.1

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

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

Vulnerability Information

CPE: p-cpe:/a:novell:suse_linux:kernel-default, p-cpe:/a:novell:suse_linux:kernel-default-base, p-cpe:/a:novell:suse_linux:kernel-default-base-debuginfo, p-cpe:/a:novell:suse_linux:kernel-default-debuginfo, p-cpe:/a:novell:suse_linux:kernel-default-debugsource, p-cpe:/a:novell:suse_linux:kernel-default-devel, p-cpe:/a:novell:suse_linux:kernel-default-extra, p-cpe:/a:novell:suse_linux:kernel-default-extra-debuginfo, p-cpe:/a:novell:suse_linux:kernel-default-man, p-cpe:/a:novell:suse_linux:kernel-syms, p-cpe:/a:novell:suse_linux:kernel-xen, p-cpe:/a:novell:suse_linux:kernel-xen-base, p-cpe:/a:novell:suse_linux:kernel-xen-base-debuginfo, p-cpe:/a:novell:suse_linux:kernel-xen-debuginfo, p-cpe:/a:novell:suse_linux:kernel-xen-debugsource, p-cpe:/a:novell:suse_linux:kernel-xen-devel, cpe:/o:novell:suse_linux:12

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: 1/19/2016

Vulnerability Publication Date: 12/28/2015

Reference Information

CVE: CVE-2015-7550, CVE-2015-8539, CVE-2015-8543, CVE-2015-8550, CVE-2015-8551, CVE-2015-8552, CVE-2015-8569, CVE-2015-8575