SUSE SLES12 Security Update : kernel (SUSE-SU-2018:3470-1)

High Nessus Plugin ID 118460

Synopsis

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

Description

This update for the Linux Kernel 4.4.121-92_95 fixes several issues.

The following security issues were fixed :

CVE-2018-14633: A security flaw was found in the
chap_server_compute_md5() function in the ISCSI target code in a way
an authentication request from an ISCSI initiator is processed. An
unauthenticated remote attacker can cause a stack-based buffer
overflow and smash up to 17 bytes of the stack. The attack requires
the iSCSI target to be enabled on the victim host. Depending on how
the target's code was built (i.e. depending on a compiler, compile
flags and hardware architecture) an attack may lead to a system crash
and thus to a denial-of-service or possibly to a non-authorized access
to data exported by an iSCSI target. Due to the nature of the flaw,
privilege escalation cannot be fully ruled out, although we believe it
is highly unlikely. (bsc#1107832).

CVE-2018-5390: The Linux kernel could be forced to make very expensive
calls to tcp_collapse_ofo_queue() and tcp_prune_ofo_queue() for every
incoming packet which can lead to a denial of service (bsc#1102682).

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 the SUSE recommended
installation methods like YaST online_update or 'zypper patch'.

Alternatively you can run the command listed for your product :

SUSE Linux Enterprise Server for SAP 12-SP2:zypper in -t patch
SUSE-SLE-SAP-12-SP2-2018-2483=1

SUSE Linux Enterprise Server 12-SP2-LTSS:zypper in -t patch
SUSE-SLE-SERVER-12-SP2-2018-2483=1

See Also

https://bugzilla.suse.com/show_bug.cgi?id=1102682

https://bugzilla.suse.com/show_bug.cgi?id=1107832

https://www.suse.com/security/cve/CVE-2018-14633/

https://www.suse.com/security/cve/CVE-2018-5390/

http://www.nessus.org/u?a7b33763

Plugin Details

Severity: High

ID: 118460

File Name: suse_SU-2018-3470-1.nasl

Version: 1.2

Type: local

Agent: unix

Published: 2018/10/26

Modified: 2018/12/01

Dependencies: 12634

Risk Information

Risk Factor: High

CVSS v2.0

Base Score: 8.3

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

CVSS v3.0

Base Score: 7.5

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

Vulnerability Information

CPE: p-cpe:/a:novell:suse_linux:kgraft-patch-4_4_121-92_95-default, cpe:/o:novell:suse_linux:12

Patch Publication Date: 2018/10/25

Reference Information

CVE: CVE-2018-14633, CVE-2018-5390