Scientific Linux Security Update : tigervnc on SL6.x i386/x86_64 (20170321)

critical Nessus Plugin ID 99227

Synopsis

The remote Scientific Linux host is missing one or more security updates.

Description

Security Fix(es) :

- A denial of service flaw was found in the TigerVNC's Xvnc server. A remote unauthenticated attacker could use this flaw to make Xvnc crash by terminating the TLS handshake process early. (CVE-2016-10207)

- A buffer overflow flaw, leading to memory corruption, was found in TigerVNC viewer. A remote malicious VNC server could use this flaw to crash the client vncviewer process resulting in denial of service. (CVE-2017-5581)

Solution

Update the affected packages.

See Also

http://www.nessus.org/u?f77d9670

Plugin Details

Severity: Critical

ID: 99227

File Name: sl_20170321_tigervnc_on_SL6_x.nasl

Version: 3.4

Type: local

Agent: unix

Published: 4/6/2017

Updated: 1/14/2021

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Vector: CVSS2#AV:N/AC:M/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:fermilab:scientific_linux:tigervnc, p-cpe:/a:fermilab:scientific_linux:tigervnc-debuginfo, p-cpe:/a:fermilab:scientific_linux:tigervnc-server, p-cpe:/a:fermilab:scientific_linux:tigervnc-server-applet, p-cpe:/a:fermilab:scientific_linux:tigervnc-server-module, x-cpe:/o:fermilab:scientific_linux

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

Patch Publication Date: 3/21/2017

Vulnerability Publication Date: 2/28/2017

Reference Information

CVE: CVE-2016-10207, CVE-2017-5581