ByteOS Network

NVD Vulnerability Details :

CVE-2020-26117

Analyzed

Source-cve@mitre.org

Published At-27 Sep, 2020 | 04:15

Updated At-16 Nov, 2022 | 14:13

In rfb/CSecurityTLS.cxx and rfb/CSecurityTLS.java in TigerVNC before 1.11.0, viewers mishandle TLS certificate exceptions. They store the certificates as authorities, meaning that the owner of a certificate could impersonate any server after a client had added an exception.

Date Added	Due Date	Vulnerability Name	Required Action
	N/A

Metrics

Type	Version	Base score	Base severity	Vector
Primary	3.1	8.1	HIGH	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
Primary	2.0	5.8	MEDIUM	AV:N/AC:M/Au:N/C:P/I:P/A:N

CPE Matches

tigervnc>>tigervnc>>Versions before 1.11.0(exclusive)

cpe:2.3:a:tigervnc:tigervnc:*:*:*:*:*:*:*:*

Debian GNU/Linux

>>debian_linux>>9.0

cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*

openSUSE

>>leap>>15.2

cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:*

Weaknesses

CWE ID	Type	Source
CWE-295	Primary	nvd@nist.gov

References

Hyperlink	Source	Resource
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00025.html	cve@mitre.org	Broken Link Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00024.html	cve@mitre.org	Broken Link Mailing List Third Party Advisory
https://bugzilla.opensuse.org/show_bug.cgi?id=1176733	cve@mitre.org	Issue Tracking Third Party Advisory
https://github.com/TigerVNC/tigervnc/commit/20dea801e747318525a5859fe4f37c52b05310cb	cve@mitre.org	Patch Third Party Advisory
https://github.com/TigerVNC/tigervnc/commit/7399eab79a4365434d26494fa1628ce1eb91562b	cve@mitre.org	Patch Third Party Advisory
https://github.com/TigerVNC/tigervnc/commit/b30f10c681ec87720cff85d490f67098568a9cba	cve@mitre.org	Patch Third Party Advisory
https://github.com/TigerVNC/tigervnc/commit/f029745f63ac7d22fb91639b2cb5b3ab56134d6e	cve@mitre.org	Patch Third Party Advisory
https://github.com/TigerVNC/tigervnc/releases/tag/v1.11.0	cve@mitre.org	Release Notes Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/10/msg00007.html	cve@mitre.org	Mailing List Third Party Advisory

CISA Catalog

Metrics

CPE Matches

Weaknesses

Evaluator Description

Evaluator Impact

Evaluator Solution

Vendor Statements

References

Change History