RHEL 7 : libvncserver (RHSA-2018:1055)

critical Nessus Plugin ID 108994

Synopsis

The remote Red Hat host is missing one or more security updates.

Description

An update for libvncserver is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

LibVNCServer is a C library that enables you to implement VNC server functionality into own programs.

Security Fix(es) :

* libvncserver: Improper input sanitization in rfbProcessClientNormalMessage in rfbserver.c (CVE-2018-7225)

For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section.

Solution

Update the affected libvncserver, libvncserver-debuginfo and / or libvncserver-devel packages.

See Also

https://access.redhat.com/errata/RHSA-2018:1055

https://access.redhat.com/security/cve/cve-2018-7225

Plugin Details

Severity: Critical

ID: 108994

File Name: redhat-RHSA-2018-1055.nasl

Version: 1.7

Type: local

Agent: unix

Published: 4/11/2018

Updated: 10/24/2019

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

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

CVSS v3

Risk Factor: Critical

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:redhat:enterprise_linux:libvncserver, p-cpe:/a:redhat:enterprise_linux:libvncserver-debuginfo, p-cpe:/a:redhat:enterprise_linux:libvncserver-devel, cpe:/o:redhat:enterprise_linux:7, cpe:/o:redhat:enterprise_linux:7.5, cpe:/o:redhat:enterprise_linux:7.6, cpe:/o:redhat:enterprise_linux:7.7

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

Patch Publication Date: 4/10/2018

Vulnerability Publication Date: 2/19/2018

Reference Information

CVE: CVE-2018-7225

RHSA: 2018:1055