SUSE SLES12 Security Update : kernel (SUSE-SU-2019:2601-1)

high Nessus Plugin ID 129747

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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

This update for the Linux Kernel 4.4.121-92_120 fixes several issues.

The following security issues were fixed :

CVE-2019-14835: A buffer overflow flaw was found in the way vhost functionality, that translates virtqueue buffers to IOVs, logged the buffer descriptors during migration. A privileged guest user able to pass descriptors with invalid length to the host when migration is underway, could use this flaw to increase their privileges on the host (bsc#1151021).

CVE-2018-5390: Fixed a denial of service ('SegmentSmack') in tcp_collapse_ofo_queue() and tcp_prune_ofo_queue() for every incoming packet (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-SP2-2019-2601=1

SUSE Linux Enterprise Server 12-SP2-LTSS:zypper in -t patch SUSE-SLE-SERVER-12-SP2-2019-2601=1

See Also

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

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

https://www.suse.com/security/cve/CVE-2019-14835/

https://bugzilla.suse.com/show_bug.cgi?id=1151021

http://www.nessus.org/u?4fc7456a

Plugin Details

Severity: High

ID: 129747

File Name: suse_SU-2019-2601-1.nasl

Version: 1.3

Type: local

Agent: unix

Published: 10/9/2019

Updated: 12/19/2019

Dependencies: ssh_get_info.nasl

Risk Information

CVSS Score Source: CVE-2019-14835

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.3

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

Temporal Vector: CVSS2#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: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:2.3:o:novell:suse_linux:12:*:*:*:*:*:*:*, p-cpe:2.3:a:novell:suse_linux:kgraft-patch-4_4_121-92_120-default:*:*:*:*:*:*:*

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: 10/8/2019

Vulnerability Publication Date: 8/6/2018

Reference Information

CVE: CVE-2018-5390, CVE-2019-14835