SUSE SLES12 Security Update : kernel (SUSE-SU-2017:1939-1) (Stack Clash)

Medium Nessus Plugin ID 101942

Synopsis

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

Description

This update for the Linux Kernel 3.12.61-52_72 fixes one issue. The following security bugs were fixed :

- CVE-2017-1000364: An issue was discovered in the size of the stack guard page on Linux, specifically a 4k stack guard page is not sufficiently large and can be 'jumped' over (the stack guard page is bypassed) (bsc#1039496).

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 Server for SAP 12:zypper in -t patch SUSE-SLE-SAP-12-2017-1206=1

SUSE Linux Enterprise Server 12-LTSS:zypper in -t patch SUSE-SLE-SERVER-12-2017-1206=1

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

See Also

https://bugzilla.suse.com/show_bug.cgi?id=1039496

https://www.suse.com/security/cve/CVE-2017-1000364/

http://www.nessus.org/u?9302f77d

Plugin Details

Severity: Medium

ID: 101942

File Name: suse_SU-2017-1939-1.nasl

Version: 3.9

Type: local

Agent: unix

Published: 2017/07/25

Updated: 2019/04/10

Dependencies: 12634

Risk Information

Risk Factor: Medium

CVSS v2.0

Base Score: 6.2

Temporal Score: 5.1

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

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

CVSS v3.0

Base Score: 7.4

Temporal Score: 6.8

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

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

Vulnerability Information

CPE: p-cpe:/a:novell:suse_linux:kgraft-patch-3_12_61-52_72-default, p-cpe:/a:novell:suse_linux:kgraft-patch-3_12_61-52_72-xen, cpe:/o:novell:suse_linux:12

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2017/07/24

Exploitable With

Metasploit (rsh_stack_clash_priv_esc.rb)

Reference Information

CVE: CVE-2017-1000364