CVE-2020-26117

Sažetak

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.

Reference

https://github.com/TigerVNC/tigervnc/commit/20dea801e747318525a5859fe4f37c52b05310cb
https://github.com/TigerVNC/tigervnc/commit/b30f10c681ec87720cff85d490f67098568a9cba
https://github.com/TigerVNC/tigervnc/releases/tag/v1.11.0
https://github.com/TigerVNC/tigervnc/commit/f029745f63ac7d22fb91639b2cb5b3ab56134d6e
https://bugzilla.opensuse.org/show_bug.cgi?id=1176733
https://github.com/TigerVNC/tigervnc/commit/7399eab79a4365434d26494fa1628ce1eb91562b
https://lists.debian.org/debian-lts-announce/2020/10/msg00007.html
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00025.html
http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00024.html

CVSS

Base:	5.8
Impact:	4.9
Exploitability:	8.6

Pristup

Vektor	Složenost	Autentikacija
NETWORK	MEDIUM	NONE

Impact

Povjerljivost	Cjelovitost	Dostupnost
PARTIAL	PARTIAL	NONE

CVSS vektor

AV:N/AC:M/Au:N/C:P/I:P/A:N

Zadnje važnije ažuriranje

16-11-2022 - 14:13

Objavljeno

27-09-2020 - 04:15