Debian Security Advisory
DLA-2396-1 tigervnc -- LTS security update
- Date Reported:
- 06 Oct 2020
- Affected Packages:
- Security database references:
- In the Debian bugtracking system: Bug 971272.
In Mitre's CVE dictionary: CVE-2020-26117.
- More information:
A vulnerability was discovered in tigernvc, a Virtual Network Computing client and server implementation. The viewer implementation mishandles TLS certificate exceptions, storing the certificates as authorities, meaning that the owner of a certificate could impersonate any server after a client had added an exception.
For Debian 9 stretch, this problem has been fixed in version 1.7.0+dfsg-7+deb9u2.
We recommend that you upgrade your tigervnc packages.
For the detailed security status of tigervnc please refer to its security tracker page at: https://security-tracker.debian.org/tracker/tigervnc
Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS