SUSE SLED15 / SLES15 Security Update : libX11 (SUSE-SU-2018:2955-1)

High Nessus Plugin ID 120113


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


This update for libX11 fixes the following security issues :

CVE-2018-14599: The function XListExtensions was vulnerable to an off-by-one error caused by malicious server responses, leading to DoS or possibly unspecified other impact (bsc#1102062)

CVE-2018-14600: The function XListExtensions interpreted a variable as signed instead of unsigned, resulting in an out-of-bounds write (of up to 128 bytes), leading to DoS or remote code execution (bsc#1102068)

CVE-2018-14598: A malicious server could have sent a reply in which the first string overflows, causing a variable to be set to NULL that will be freed later on, leading to DoS (segmentation fault) (bsc#1102073)

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.


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 Module for Basesystem 15:zypper in -t patch SUSE-SLE-Module-Basesystem-15-2018-2082=1

See Also

Plugin Details

Severity: High

ID: 120113

File Name: suse_SU-2018-2955-1.nasl

Version: 1.2

Type: local

Agent: unix

Published: 2019/01/02

Updated: 2019/09/10

Dependencies: 12634

Risk Information

Risk Factor: High

CVSS v2.0

Base Score: 7.5

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

CVSS v3.0

Base Score: 9.8

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

Vulnerability Information

CPE: p-cpe:/a:novell:suse_linux:libX11, p-cpe:/a:novell:suse_linux:libX11-6, p-cpe:/a:novell:suse_linux:libX11-6-32bit-debuginfo, p-cpe:/a:novell:suse_linux:libX11-6-debuginfo, p-cpe:/a:novell:suse_linux:libX11-debugsource, p-cpe:/a:novell:suse_linux:libX11-devel, p-cpe:/a:novell:suse_linux:libX11-xcb1, p-cpe:/a:novell:suse_linux:libX11-xcb1-32bit-debuginfo, p-cpe:/a:novell:suse_linux:libX11-xcb1-debuginfo, cpe:/o:novell:suse_linux:15

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

Patch Publication Date: 2018/09/30

Vulnerability Publication Date: 2018/08/24

Reference Information

CVE: CVE-2018-14598, CVE-2018-14599, CVE-2018-14600