Debian DSA-4383-1 : libvncserver - security update

High Nessus Plugin ID 121561

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VPR Score: 5.9

Synopsis

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

Description

Pavel Cheremushkin discovered several vulnerabilities in libvncserver, a library to implement VNC server/client functionalities, which might result in the execution of arbitrary code, denial of service or information disclosure.

Solution

Upgrade the libvncserver packages.

For the stable distribution (stretch), these problems have been fixed in version 0.9.11+dfsg-1.3~deb9u1.

See Also

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=916941

http://www.nessus.org/u?b930abb4

https://packages.debian.org/source/stretch/libvncserver

https://www.debian.org/security/2019/dsa-4383

Plugin Details

Severity: High

ID: 121561

File Name: debian_DSA-4383.nasl

Version: 1.2

Type: local

Agent: unix

Published: 2019/02/04

Updated: 2020/02/20

Dependencies: 12634

Risk Information

Risk Factor: High

VPR Score: 5.9

CVSS Score Source: CVE-2018-20020

CVSS v2.0

Base Score: 7.5

Temporal Score: 5.5

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

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

CVSS v3.0

Base Score: 9.8

Temporal Score: 8.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:libvncserver, cpe:/o:debian:debian_linux:9.0

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

Exploit Ease: No known exploits are available

Patch Publication Date: 2019/02/03

Vulnerability Publication Date: 2018/12/19

Reference Information

CVE: CVE-2018-15126, CVE-2018-15127, CVE-2018-20019, CVE-2018-20020, CVE-2018-20021, CVE-2018-20022, CVE-2018-20023, CVE-2018-20024, CVE-2018-6307

DSA: 4383