openSUSE Security Update : tigervnc (openSUSE-2020-87)

high Nessus Plugin ID 133173
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 tigervnc fixes the following issues :

- CVE-2019-15691: Fixed a use-after-return due to incorrect usage of stack memory in ZRLEDecoder (bsc#1159856).

- CVE-2019-15692: Fixed a heap-based buffer overflow in CopyRectDecode (bsc#1160250).

- CVE-2019-15693: Fixed a heap-based buffer overflow in TightDecoder::FilterGradient (bsc#1159858).

- CVE-2019-15694: Fixed a heap-based buffer overflow, caused by improper error handling in processing MemOutStream (bsc#1160251).

- CVE-2019-15695: Fixed a stack-based buffer overflow, which could be triggered from CMsgReader::readSetCursor (bsc#1159860).

This update was imported from the SUSE:SLE-15-SP1:Update update project.

Solution

Update the affected tigervnc packages.

See Also

https://bugzilla.opensuse.org/show_bug.cgi?id=1159856

https://bugzilla.opensuse.org/show_bug.cgi?id=1159858

https://bugzilla.opensuse.org/show_bug.cgi?id=1159860

https://bugzilla.opensuse.org/show_bug.cgi?id=1160250

https://bugzilla.opensuse.org/show_bug.cgi?id=1160251

Plugin Details

Severity: High

ID: 133173

File Name: openSUSE-2020-87.nasl

Version: 1.2

Type: local

Agent: unix

Published: 1/22/2020

Updated: 1/24/2020

Dependencies: ssh_get_info.nasl

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 4.8

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

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

CVSS v3

Risk Factor: High

Base Score: 7.2

Temporal Score: 6.3

Vector: CVSS:3.0/AV:N/AC:L/PR:H/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:opensuse:15.1:*:*:*:*:*:*:*, p-cpe:2.3:a:novell:opensuse:xorg-x11-xvnc:*:*:*:*:*:*:*, p-cpe:2.3:a:novell:opensuse:xorg-x11-xvnc-debuginfo:*:*:*:*:*:*:*, p-cpe:2.3:a:novell:opensuse:libxvnc-devel:*:*:*:*:*:*:*, p-cpe:2.3:a:novell:opensuse:libxvnc1:*:*:*:*:*:*:*, p-cpe:2.3:a:novell:opensuse:libxvnc1-debuginfo:*:*:*:*:*:*:*, p-cpe:2.3:a:novell:opensuse:tigervnc:*:*:*:*:*:*:*, p-cpe:2.3:a:novell:opensuse:tigervnc-debuginfo:*:*:*:*:*:*:*, p-cpe:2.3:a:novell:opensuse:tigervnc-debugsource:*:*:*:*:*:*:*, p-cpe:2.3:a:novell:opensuse:tigervnc-x11vnc:*:*:*:*:*:*:*, p-cpe:2.3:a:novell:opensuse:xorg-x11-xvnc-java:*:*:*:*:*:*:*, p-cpe:2.3:a:novell:opensuse:xorg-x11-xvnc-module:*:*:*:*:*:*:*, p-cpe:2.3:a:novell:opensuse:xorg-x11-xvnc-module-debuginfo:*:*:*:*:*:*:*, p-cpe:2.3:a:novell:opensuse:xorg-x11-xvnc-novnc:*:*:*:*:*:*:*

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: 1/21/2020

Vulnerability Publication Date: 12/26/2019

Reference Information

CVE: CVE-2019-15693, CVE-2019-15692, CVE-2019-15691, CVE-2019-15694, CVE-2019-15695