SUSE SLED12 / SLES12 Security Update : kernel (SUSE-SU-2017:0865-1)

high Nessus Plugin ID 99091

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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 fix the following security bugs :

- CVE-2017-7184: The Linux kernel allowed local users to obtain root privileges or cause a denial of service (heap-based out-of-bounds access) via unspecified vectors, as demonstrated during a Pwn2Own competition at CanSecWest 2017 (bnc#1030573, bnc#1028372).

- CVE-2017-2636: Race condition in drivers/tty/n_hdlc.c in the Linux kernel allowed local users to gain privileges or cause a denial of service (double free) by setting the HDLC line discipline (bnc#1027565).

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-SP1:zypper in -t patch SUSE-SLE-WE-12-SP1-2017-485=1

SUSE Linux Enterprise Software Development Kit 12-SP1:zypper in -t patch SUSE-SLE-SDK-12-SP1-2017-485=1

SUSE Linux Enterprise Server 12-SP1:zypper in -t patch SUSE-SLE-SERVER-12-SP1-2017-485=1

SUSE Linux Enterprise Module for Public Cloud 12:zypper in -t patch SUSE-SLE-Module-Public-Cloud-12-2017-485=1

SUSE Linux Enterprise Live Patching 12:zypper in -t patch SUSE-SLE-Live-Patching-12-2017-485=1

SUSE Linux Enterprise Desktop 12-SP1:zypper in -t patch SUSE-SLE-DESKTOP-12-SP1-2017-485=1

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

See Also

https://bugzilla.suse.com/show_bug.cgi?id=1027565

https://bugzilla.suse.com/show_bug.cgi?id=1028372

https://bugzilla.suse.com/show_bug.cgi?id=1030573

https://www.suse.com/security/cve/CVE-2017-2636/

https://www.suse.com/security/cve/CVE-2017-7184/

http://www.nessus.org/u?6a551b33

Plugin Details

Severity: High

ID: 99091

File Name: suse_SU-2017-0865-1.nasl

Version: 3.7

Type: local

Agent: unix

Published: 3/30/2017

Updated: 1/6/2021

Dependencies: ssh_get_info.nasl

Risk Information

VPR

Risk Factor: Critical

Score: 9

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: 7.8

Temporal Score: 6.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/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: 3/29/2017

Vulnerability Publication Date: 3/7/2017

Reference Information

CVE: CVE-2017-2636, CVE-2017-7184