CVE-2011-1775

medium

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.

References

https://bugzilla.redhat.com/show_bug.cgi?id=702672

https://bugzilla.redhat.com/show_bug.cgi?id=702470

http://www.securityfocus.com/bid/47738

http://www.redhat.com/support/errata/RHSA-2011-0871.html

http://www.mail-archive.com/tigervnc-devel%40lists.sourceforge.net/msg01347.html

http://www.mail-archive.com/tigervnc-devel%40lists.sourceforge.net/msg01345.html

http://www.mail-archive.com/tigervnc-devel%40lists.sourceforge.net/msg01342.html

http://secunia.com/advisories/44939

http://openwall.com/lists/oss-security/2011/05/09/7

http://openwall.com/lists/oss-security/2011/05/06/2

http://lists.fedoraproject.org/pipermail/package-announce/2011-May/060567.html

Details

Source: Mitre, NVD

Published: 2011-05-26

Updated: 2023-02-13

Risk Information

CVSS v2

Base Score: 5.8

Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:N

Severity: Medium

CVSS v3

Base Score: 5.9

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

Severity: Medium