CVE-2011-1775

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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
5.8 UNKNOWN
NETWORK
MEDIUM
AV:N/AC:M/Au:N/C:P/I:P/A:N
redhatCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 67%
VendorProductVersion
tigervnctigervnc
1.1:beta1
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
tigervnc
bullseye
1.11.0+dfsg-2+deb11u1
fixed
bookworm
1.12.0+dfsg-8
fixed
sid
1.13.1+dfsg-3
fixed
trixie
1.13.1+dfsg-3
fixed
Common Weakness Enumeration
References
http://lists.fedoraproject.org/pipermail/package-announce/2011-May/060567.html
http://openwall.com/lists/oss-security/2011/05/06/2
http://openwall.com/lists/oss-security/2011/05/09/7
http://secunia.com/advisories/44939
http://www.mail-archive.com/tigervnc-devel%40lists.sourceforge.net/msg01342.html
http://www.mail-archive.com/tigervnc-devel%40lists.sourceforge.net/msg01345.html
http://www.mail-archive.com/tigervnc-devel%40lists.sourceforge.net/msg01347.html
http://www.redhat.com/support/errata/RHSA-2011-0871.html
http://www.securityfocus.com/bid/47738
https://bugzilla.redhat.com/show_bug.cgi?id=702470
https://bugzilla.redhat.com/show_bug.cgi?id=702672
http://lists.fedoraproject.org/pipermail/package-announce/2011-May/060567.html
http://openwall.com/lists/oss-security/2011/05/06/2
http://openwall.com/lists/oss-security/2011/05/09/7
http://secunia.com/advisories/44939
http://www.mail-archive.com/tigervnc-devel%40lists.sourceforge.net/msg01342.html
http://www.mail-archive.com/tigervnc-devel%40lists.sourceforge.net/msg01345.html
http://www.mail-archive.com/tigervnc-devel%40lists.sourceforge.net/msg01347.html
http://www.redhat.com/support/errata/RHSA-2011-0871.html
http://www.securityfocus.com/bid/47738
https://bugzilla.redhat.com/show_bug.cgi?id=702470
https://bugzilla.redhat.com/show_bug.cgi?id=702672