openSUSE Security Update : LibVNCServer (openSUSE-2019-53)

critical Nessus Plugin ID 121282
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 openSUSE host is missing a security update.

Description

This update for LibVNCServer fixes the following issues :

Security issues fixed :

- CVE-2018-15126: Fixed use-after-free in file transfer extension (bsc#1120114)

- CVE-2018-6307: Fixed use-after-free in file transfer extension server code (bsc#1120115)

- CVE-2018-20020: Fixed heap out-of-bound write inside structure in VNC client code (bsc#1120116)

- CVE-2018-15127: Fixed heap out-of-bounds write in rfbserver.c (bsc#1120117)

- CVE-2018-20019: Fixed multiple heap out-of-bound writes in VNC client code (bsc#1120118)

- CVE-2018-20023: Fixed information disclosure through improper initialization in VNC Repeater client code (bsc#1120119)

- CVE-2018-20022: Fixed information disclosure through improper initialization in VNC client code (bsc#1120120)

- CVE-2018-20024: Fixed NULL pointer dereference in VNC client code (bsc#1120121)

- CVE-2018-20021: Fixed infinite loop in VNC client code (bsc#1120122)

This update was imported from the SUSE:SLE-15:Update update project.

Solution

Update the affected LibVNCServer packages.

See Also

https://bugzilla.opensuse.org/show_bug.cgi?id=1120114

https://bugzilla.opensuse.org/show_bug.cgi?id=1120115

https://bugzilla.opensuse.org/show_bug.cgi?id=1120116

https://bugzilla.opensuse.org/show_bug.cgi?id=1120117

https://bugzilla.opensuse.org/show_bug.cgi?id=1120118

https://bugzilla.opensuse.org/show_bug.cgi?id=1120119

https://bugzilla.opensuse.org/show_bug.cgi?id=1120120

https://bugzilla.opensuse.org/show_bug.cgi?id=1120121

https://bugzilla.opensuse.org/show_bug.cgi?id=1120122

Plugin Details

Severity: Critical

ID: 121282

File Name: openSUSE-2019-53.nasl

Version: 1.5

Type: local

Agent: unix

Published: 1/22/2019

Updated: 1/19/2021

Dependencies: ssh_get_info.nasl

Risk Information

CVSS Score Source: CVE-2018-20020

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.5

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

Temporal Vector: E:U/RL:OF/RC:C

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

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

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

Vulnerability Information

CPE: p-cpe:/a:novell:opensuse:LibVNCServer-debugsource, p-cpe:/a:novell:opensuse:LibVNCServer-devel, p-cpe:/a:novell:opensuse:libvncclient0, p-cpe:/a:novell:opensuse:libvncclient0-debuginfo, p-cpe:/a:novell:opensuse:libvncserver0, p-cpe:/a:novell:opensuse:libvncserver0-debuginfo, cpe:/o:novell:opensuse:15.0

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

Exploit Ease: No known exploits are available

Patch Publication Date: 3/23/2019

Vulnerability Publication Date: 12/19/2018

Reference Information

CVE: CVE-2018-15126, CVE-2018-15127, CVE-2018-20019, CVE-2018-20020, CVE-2018-20021, CVE-2018-20022, CVE-2018-20023, CVE-2018-20024, CVE-2018-6307