PT-2020-2987 · Libvncserver+4 · Libvncserver+4

Published 2020-06-17 · Updated 2022-03-09 · CVE-2020-14401

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L

Name of the Vulnerable Software and Affected Versions LibVNCServer versions prior to 0.9.13

Description The issue is caused by an integer overflow in the pixel value variable within the libvncserver/scale.c component of the LibVNCServer library. This could allow a remote attacker to impact the confidentiality, integrity, and availability of protected information.

Recommendations For versions prior to 0.9.13, update to version 0.9.13 or later to resolve the issue. As a temporary workaround, consider restricting access to the libvncserver/scale.c component until a patch is available.

Fix

Integer Overflow

Weakness Enumeration

CWE-190

Related Identifiers

ALT-PU-2020-2671

ALT-PU-2020-2694

BDU:2020-03154

CVE-2020-14401

DLA-2264-1

DLA-2347-1

MGASA-2020-0280

OPENSUSE-SU-2020:0988-1

OPENSUSE-SU-2020:1025-1

OPENSUSE-SU-2020:1056-1

OPENSUSE-SU-2020_0988-1

OPENSUSE-SU-2020_1025-1

OPENSUSE-SU-2020_1056-1

OPENSUSE-SU-2024:10598-1

SUSE-SU-2020:14424-1

SUSE-SU-2020:1922-1

SUSE-SU-2020:2167-1

USN-4434-1

Affected Products

Alt Linux

Libvncserver

Linuxmint

Suse

Ubuntu

References · 79

• https://github.com/LibVNC/libvncserver/commit/a6788d1da719ae006605b78d22f5a9f170b423af · Patch
• https://osv.dev/vulnerability/CVE-2020-14401 · Vendor Advisory
• https://ubuntu.com/security/CVE-2020-14405 · Vendor Advisory
• https://wiki.astralinux.ru/pages/viewpage.action?pageId=47416144 · Vendor Advisory
• https://ubuntu.com/security/CVE-2020-14398 · Vendor Advisory
• https://osv.dev/vulnerability/DLA-2264-1 · Vendor Advisory
• https://wiki.astralinux.ru/astra-linux-se81-bulletin-20211019SE81 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2020:14424-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2020:2167-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2020-14402 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2020:1922-1 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2020-14401 · Vendor Advisory
• https://ubuntu.com/security/CVE-2020-14399 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2020-14401 · Vendor Advisory
• https://cert-portal.siemens.com/productcert/pdf/ssa-390195.pdf · Patch