SUSE SLES11 Security Update : LibVNCServer (SUSE-SU-2019:13952-1)

critical Nessus Plugin ID 122151

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Synopsis

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

Description

This update for LibVNCServer fixes the following issues :

Security issues fixed :

CVE-2018-20749: Fixed a heap out of bounds write vulnerability in rfbserver.c (bsc#1123828)

CVE-2018-20750: Fixed a heap out of bounds write vulnerability in rfbserver.c (bsc#1123832)

CVE-2018-20748: Fixed multiple heap out-of-bound writes in VNC client code (bsc#1123823)

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 Software Development Kit 11-SP4:zypper in -t patch sdksp4-LibVNCServer-13952=1

SUSE Linux Enterprise Server 11-SP4:zypper in -t patch slessp4-LibVNCServer-13952=1

SUSE Linux Enterprise Point of Sale 11-SP3:zypper in -t patch sleposp3-LibVNCServer-13952=1

SUSE Linux Enterprise Debuginfo 11-SP4:zypper in -t patch dbgsp4-LibVNCServer-13952=1

SUSE Linux Enterprise Debuginfo 11-SP3:zypper in -t patch dbgsp3-LibVNCServer-13952=1

See Also

https://bugzilla.suse.com/show_bug.cgi?id=1123823

https://bugzilla.suse.com/show_bug.cgi?id=1123828

https://bugzilla.suse.com/show_bug.cgi?id=1123832

https://www.suse.com/security/cve/CVE-2018-20748/

https://www.suse.com/security/cve/CVE-2018-20749/

https://www.suse.com/security/cve/CVE-2018-20750/

http://www.nessus.org/u?45c27eb6

Plugin Details

Severity: Critical

ID: 122151

File Name: suse_SU-2019-13952-1.nasl

Version: 1.6

Type: local

Agent: unix

Published: 2/13/2019

Updated: 6/20/2024

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.9

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

CVSS Score Source: CVE-2018-20750

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.8

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

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

Vulnerability Information

CPE: p-cpe:/a:novell:suse_linux:libvncserver, cpe:/o:novell:suse_linux:11

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: 2/12/2019

Vulnerability Publication Date: 1/30/2019

Reference Information

CVE: CVE-2018-20748, CVE-2018-20749, CVE-2018-20750