| Name | CVE-2011-1775 |
| Description | The CSecurityTLS::processMsg function in common/rfb/CSecurityTLS.cxx in the vncviewer component in TigerVNC 1.1beta1 does not properly verify the server's X.509 certificate, which allows man-in-the-middle attackers to spoof a TLS VNC server via an arbitrary certificate. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| tigervnc (PTS) | stretch (security), stretch (lts), stretch | 1.7.0+dfsg-7+deb9u2 | fixed |
| buster | 1.9.0+dfsg-3+deb10u3 | fixed |
| bullseye | 1.11.0+dfsg-2+deb11u1 | fixed |
| bookworm | 1.12.0+dfsg-8 | fixed |
| sid, trixie | 1.13.1+dfsg-3 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| tigervnc | source | (unstable) | (not affected) | | | |
Notes
- tigervnc <not-affected> (Fixed before initial release in Debian)
https://github.com/TigerVNC/tigervnc/commit/ce6c8b097f0d5b161039dc8c8208aff078d433ff