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FreeBSD : libvncserver -- multiple buffer overflows (64be967a-d379-11e6-a071-001e67f15f5a)

critical Nessus Plugin ID 96367

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Synopsis

The remote FreeBSD host is missing a security-related update.

Description

libvnc server reports :

Two unrelated buffer overflows can be used by a malicious server to overwrite parts of the heap and crash the client (or possibly execute arbitrary code).

Solution

Update the affected package.

See Also

https://github.com/LibVNC/libvncserver/pull/137

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=215805

http://www.nessus.org/u?0f7e09f0

Plugin Details

Severity: Critical

ID: 96367

File Name: freebsd_pkg_64be967ad37911e6a071001e67f15f5a.nasl

Version: 3.3

Type: local

Published: 1/10/2017

Updated: 1/4/2021

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

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:freebsd:freebsd:libvncserver, cpe:/o:freebsd:freebsd

Required KB Items: Host/local_checks_enabled, Host/FreeBSD/release, Host/FreeBSD/pkg_info

Patch Publication Date: 1/9/2017

Vulnerability Publication Date: 11/24/2016

Reference Information

CVE: CVE-2016-9941, CVE-2016-9942