CVE-2011-1775

N/A Unknown
Published: May 26, 2011 Modified: April 29, 2026
View on NVD

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.

AI Explanation

Get an AI-powered plain-language explanation of this vulnerability and remediation steps.

Login to generate AI explanation

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2011-May/060567.html
Source: secalert@redhat.com
http://openwall.com/lists/oss-security/2011/05/06/2
Source: secalert@redhat.com
http://openwall.com/lists/oss-security/2011/05/09/7
Source: secalert@redhat.com
http://secunia.com/advisories/44939
Source: secalert@redhat.com
http://www.mail-archive.com/tigervnc-devel%40lists.sourceforge.net/msg01342.html
Source: secalert@redhat.com
http://www.mail-archive.com/tigervnc-devel%40lists.sourceforge.net/msg01345.html
Source: secalert@redhat.com
http://www.mail-archive.com/tigervnc-devel%40lists.sourceforge.net/msg01347.html
Source: secalert@redhat.com
http://www.redhat.com/support/errata/RHSA-2011-0871.html
Source: secalert@redhat.com
http://www.securityfocus.com/bid/47738
Source: secalert@redhat.com
https://bugzilla.redhat.com/show_bug.cgi?id=702470
Source: secalert@redhat.com
https://bugzilla.redhat.com/show_bug.cgi?id=702672
Source: secalert@redhat.com
http://lists.fedoraproject.org/pipermail/package-announce/2011-May/060567.html
Source: af854a3a-2127-422b-91ae-364da2661108
http://openwall.com/lists/oss-security/2011/05/06/2
Source: af854a3a-2127-422b-91ae-364da2661108
http://openwall.com/lists/oss-security/2011/05/09/7
Source: af854a3a-2127-422b-91ae-364da2661108
http://secunia.com/advisories/44939
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.mail-archive.com/tigervnc-devel%40lists.sourceforge.net/msg01342.html
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.mail-archive.com/tigervnc-devel%40lists.sourceforge.net/msg01345.html
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.mail-archive.com/tigervnc-devel%40lists.sourceforge.net/msg01347.html
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.redhat.com/support/errata/RHSA-2011-0871.html
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.securityfocus.com/bid/47738
Source: af854a3a-2127-422b-91ae-364da2661108
https://bugzilla.redhat.com/show_bug.cgi?id=702470
Source: af854a3a-2127-422b-91ae-364da2661108
https://bugzilla.redhat.com/show_bug.cgi?id=702672
Source: af854a3a-2127-422b-91ae-364da2661108

22 reference(s) from NVD

Quick Stats

CVSS v3 Score
N/A / 10.0
EPSS (Exploit Probability)
1.3%
67th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

CWE-20

Affected Vendors

tigervnc

Related CVEs

CVE-2026-9699 6.8
CVE-2026-57667 8.5
CVE-2026-57665 5.3
CVE-2026-57664 4.3
CVE-2026-57663 8.5