vulnerability
Alma Linux: CVE-2020-26117: Moderate: tigervnc security, bug fix, and enhancement update (ALSA-2021-1783)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 6 | (AV:N/AC:M/Au:N/C:P/I:P/A:N) | Sep 27, 2020 | May 4, 2022 | Aug 11, 2025 |
Severity
6
CVSS
(AV:N/AC:M/Au:N/C:P/I:P/A:N)
Published
Sep 27, 2020
Added
May 4, 2022
Modified
Aug 11, 2025
Description
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.
Solutions
alma-upgrade-tigervncalma-upgrade-tigervnc-iconsalma-upgrade-tigervnc-licensealma-upgrade-tigervnc-selinuxalma-upgrade-tigervnc-serveralma-upgrade-tigervnc-server-minimalalma-upgrade-tigervnc-server-module
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