Debian DSA-4221-1 : libvncserver - security update

High Nessus Plugin ID 110420


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


Alexander Peslyak discovered that insufficient input sanitising of RFB packets in LibVNCServer could result in the disclosure of memory contents.


Upgrade the libvncserver packages.

For the oldstable distribution (jessie), this problem has been fixed in version 0.9.9+dfsg2-6.1+deb8u3.

For the stable distribution (stretch), this problem has been fixed in version 0.9.11+dfsg-1+deb9u1.

See Also

Plugin Details

Severity: High

ID: 110420

File Name: debian_DSA-4221.nasl

Version: 1.3

Type: local

Agent: unix

Published: 2018/06/11

Updated: 2018/11/13

Dependencies: 12634

Risk Information

Risk Factor: High

CVSS v2.0

Base Score: 7.5

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

CVSS v3.0

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:debian:debian_linux:libvncserver, cpe:/o:debian:debian_linux:8.0, cpe:/o:debian:debian_linux:9.0

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Patch Publication Date: 2018/06/08

Reference Information

CVE: CVE-2018-7225

DSA: 4221