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SUSE SLED15 / SLES15 Security Update : tigervnc (SUSE-SU-2020:2880-1)

high Nessus Plugin ID 143643

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Synopsis

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

Description

This update for tigervnc fixes the following issues :

CVE-2020-26117: Server certificates were stored as certiticate authorities, allowing malicious owners of these certificates to impersonate any server after a client had added an exception (bsc#1176733)

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 Module for Desktop Applications 15-SP2 :

zypper in -t patch SUSE-SLE-Module-Desktop-Applications-15-SP2-2020-2880=1

SUSE Linux Enterprise Module for Desktop Applications 15-SP1 :

zypper in -t patch SUSE-SLE-Module-Desktop-Applications-15-SP1-2020-2880=1

SUSE Linux Enterprise Module for Basesystem 15-SP2 :

zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP2-2020-2880=1

SUSE Linux Enterprise Module for Basesystem 15-SP1 :

zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP1-2020-2880=1

See Also

https://bugzilla.suse.com/show_bug.cgi?id=1176733

https://www.suse.com/security/cve/CVE-2020-26117/

http://www.nessus.org/u?59f6c55f

Plugin Details

Severity: High

ID: 143643

File Name: suse_SU-2020-2880-1.nasl

Version: 1.4

Type: local

Agent: unix

Published: 12/9/2020

Updated: 2/6/2024

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

Risk Information

VPR

Risk Factor: Medium

Score: 5.2

CVSS v2

Risk Factor: Medium

Base Score: 5.8

Temporal Score: 4.3

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

CVSS Score Source: CVE-2020-26117

CVSS v3

Risk Factor: High

Base Score: 8.1

Temporal Score: 7.1

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

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

Vulnerability Information

CPE: p-cpe:/a:novell:suse_linux:libxvnc-devel, p-cpe:/a:novell:suse_linux:libxvnc1, p-cpe:/a:novell:suse_linux:libxvnc1-debuginfo, p-cpe:/a:novell:suse_linux:tigervnc, p-cpe:/a:novell:suse_linux:tigervnc-debuginfo, p-cpe:/a:novell:suse_linux:tigervnc-debugsource, p-cpe:/a:novell:suse_linux:xorg-x11-xvnc, p-cpe:/a:novell:suse_linux:xorg-x11-xvnc-debuginfo, p-cpe:/a:novell:suse_linux:xorg-x11-xvnc-module, p-cpe:/a:novell:suse_linux:xorg-x11-xvnc-module-debuginfo, cpe:/o:novell:suse_linux:15

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: 10/9/2020

Vulnerability Publication Date: 9/27/2020

Reference Information

CVE: CVE-2020-26117