PT-2020-2988 · Libvncserver+4 · Libvncserver+4

Published 2020-06-17 · Updated 2024-08-04 · CVE-2020-14400

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

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

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

Description An issue in LibVNCServer is related to errors in the code, specifically in the libvncserver/translate.c component. The issue involves accessing byte-aligned data through uint16 t pointers. It is noted that there is no known path of exploitation or cross of a trust boundary, which has led third parties to not consider this as a vulnerability. However, if exploited, it could potentially allow a remote attacker to cause a denial of service.

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/translate.c component until a patch is available.

Fix

Weakness Enumeration

CWE-17

Related Identifiers

ALT-PU-2020-2671

ALT-PU-2020-2694

BDU:2020-03155

CVE-2020-14400

DLA-2264-1

DLA-2347-1

MGASA-2020-0280

MGASA-2020-0288

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 · 82

• https://github.com/LibVNC/libvncserver/commit/53073c8d7e232151ea2ecd8a1243124121e10e2d · Patch
• https://osv.dev/vulnerability/MGASA-2020-0288 · Vendor Advisory
• https://advisories.mageia.org/MGASA-2020-0288.html · Security Note
• 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/DEBIAN-CVE-2020-14400 · 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://bugzilla.redhat.com/show_bug.cgi?id=1860361 · Patch
• https://ubuntu.com/security/CVE-2020-14399 · Vendor Advisory