Executive Summary

Summary
Title LibVNCServer/LibVNCClient: Multiple vulnerabilities
Informations
Name GLSA-201702-24 First vendor Publication 2017-02-20
Vendor Gentoo Last vendor Modification 2017-02-20
Severity (Vendor) N/A Revision N/A

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:N/C:P/I:P/A:P)
Cvss Base Score 7.5 Attack Range Network
Cvss Impact Score 6.4 Attack Complexity Low
Cvss Expoit Score 10 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

Synopsis

Multiple vulnerabilities have been found in LibVNCServer/LibVNCClient, the worst of which allows remote attackers to execute arbitrary code when connecting to a malicious server.

Background

LibVNCServer/LibVNCClient are cross-platform C libraries that allow you to easily implement VNC server or client functionality in your program.

Description

Multiple vulnerabilities have been discovered in LibVNCServer and LibVNCClient. Please review the CVE identifiers referenced below for details.

Impact

A remote attacker could entice a user to connect to a malicious VNC server or leverage Man-in-the-Middle attacks to cause the execution of arbitrary code with the privileges of the user running a VNC client linked against LibVNCClient.

Workaround

There is no known workaround at this time.

Resolution

All LibVNCServer/LibVNCClient users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=net-libs/libvncserver-0.9.11"

References

[ 1 ] CVE-2016-9941 : http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-9941
[ 2 ] CVE-2016-9942 : http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-9942

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website:

https://security.gentoo.org/glsa/201702-24

Original Source

Url : http://security.gentoo.org/glsa/glsa-201702-24.xml

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-119 Failure to Constrain Operations within the Bounds of a Memory Buffer

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 2

Nessus® Vulnerability Scanner

Date Description
2017-07-17 Name : The remote Fedora host is missing a security update.
File : fedora_2017-6125002d79.nasl - Type : ACT_GATHER_INFO
2017-07-10 Name : The remote EulerOS host is missing a security update.
File : EulerOS_SA-2017-1130.nasl - Type : ACT_GATHER_INFO
2017-05-26 Name : The remote Fedora host is missing a security update.
File : fedora_2017-0e08170fd3.nasl - Type : ACT_GATHER_INFO
2017-05-26 Name : The remote Fedora host is missing a security update.
File : fedora_2017-dd5d2381e4.nasl - Type : ACT_GATHER_INFO
2017-05-01 Name : The remote EulerOS host is missing multiple security updates.
File : EulerOS_SA-2017-1046.nasl - Type : ACT_GATHER_INFO
2017-03-08 Name : The remote SUSE host is missing one or more security updates.
File : suse_SU-2017-0622-1.nasl - Type : ACT_GATHER_INFO
2017-02-21 Name : The remote Gentoo host is missing one or more security-related patches.
File : gentoo_GLSA-201702-24.nasl - Type : ACT_GATHER_INFO
2017-02-21 Name : The remote SUSE host is missing one or more security updates.
File : suse_SU-2017-0519-1.nasl - Type : ACT_GATHER_INFO
2017-01-12 Name : The remote SUSE host is missing one or more security updates.
File : suse_SU-2017-0104-1.nasl - Type : ACT_GATHER_INFO
2017-01-12 Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-3171-1.nasl - Type : ACT_GATHER_INFO
2017-01-10 Name : The remote FreeBSD host is missing a security-related update.
File : freebsd_pkg_64be967ad37911e6a071001e67f15f5a.nasl - Type : ACT_GATHER_INFO
2017-01-06 Name : The remote Debian host is missing a security-related update.
File : debian_DSA-3753.nasl - Type : ACT_GATHER_INFO
2017-01-04 Name : The remote Debian host is missing a security update.
File : debian_DLA-777.nasl - Type : ACT_GATHER_INFO

Alert History

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0
1
Date Informations
2017-02-22 13:21:09
  • Multiple Updates
2017-02-21 05:18:58
  • First insertion