CVE-2011-1775

mediumPriorität · verfolgen · 23EPSS 0.013 · 70. PerzentilEUUS
grimoire priorityP3 · Track
Exploitable?
—
no known exploitation
Likely / severe?
1.29% (70th) EPSS
CVSS 5.8 · medium
Is it mine?
23 products
Prüfe deine Angriffsfläche
Who says so?
4 sources
cnnvd · enisa_euvd · nvd · redhat_csaf

EPSS · bewertet 2026-10-28

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.

01

Behebungen

Hersteller-Fix, Mitigation oder Workaround, wie von den Quellen veröffentlicht.

Ein Hersteller-Fix ist verfügbar.

  • Behobentigervnc-0:1.0.90-0.15.20110314svn4359.el6_1.1.i686 as a component of Red Hat Enterprise Linux Server (v. 6)redhat_csaf

    Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259

    https://access.redhat.com/errata/RHSA-2011:0871
  • Behobentigervnc-0:1.0.90-0.15.20110314svn4359.el6_1.1.ppc64 as a component of Red Hat Enterprise Linux Server (v. 6)redhat_csaf

    Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259

    https://access.redhat.com/errata/RHSA-2011:0871
  • Behobentigervnc-0:1.0.90-0.15.20110314svn4359.el6_1.1.s390x as a component of Red Hat Enterprise Linux Server (v. 6)redhat_csaf

    Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259

    https://access.redhat.com/errata/RHSA-2011:0871
  • Behobentigervnc-0:1.0.90-0.15.20110314svn4359.el6_1.1.src as a component of Red Hat Enterprise Linux Server (v. 6)redhat_csaf

    Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259

    https://access.redhat.com/errata/RHSA-2011:0871
  • Behobentigervnc-0:1.0.90-0.15.20110314svn4359.el6_1.1.src as a component of Red Hat Enterprise Linux Server Optional (v. 6)redhat_csaf

    Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259

    https://access.redhat.com/errata/RHSA-2011:0871
  • Behobentigervnc-0:1.0.90-0.15.20110314svn4359.el6_1.1.x86_64 as a component of Red Hat Enterprise Linux Server (v. 6)redhat_csaf

    Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259

    https://access.redhat.com/errata/RHSA-2011:0871
  • Behobentigervnc-debuginfo-0:1.0.90-0.15.20110314svn4359.el6_1.1.i686 as a component of Red Hat Enterprise Linux Server (v. 6)redhat_csaf

    Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259

    https://access.redhat.com/errata/RHSA-2011:0871
  • Behobentigervnc-debuginfo-0:1.0.90-0.15.20110314svn4359.el6_1.1.i686 as a component of Red Hat Enterprise Linux Server Optional (v. 6)redhat_csaf

    Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259

    https://access.redhat.com/errata/RHSA-2011:0871
  • Behobentigervnc-debuginfo-0:1.0.90-0.15.20110314svn4359.el6_1.1.ppc64 as a component of Red Hat Enterprise Linux Server (v. 6)redhat_csaf

    Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259

    https://access.redhat.com/errata/RHSA-2011:0871
  • Behobentigervnc-debuginfo-0:1.0.90-0.15.20110314svn4359.el6_1.1.ppc64 as a component of Red Hat Enterprise Linux Server Optional (v. 6)redhat_csaf

    Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259

    https://access.redhat.com/errata/RHSA-2011:0871
  • Behobentigervnc-debuginfo-0:1.0.90-0.15.20110314svn4359.el6_1.1.s390x as a component of Red Hat Enterprise Linux Server (v. 6)redhat_csaf

    Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259

    https://access.redhat.com/errata/RHSA-2011:0871
  • Behobentigervnc-debuginfo-0:1.0.90-0.15.20110314svn4359.el6_1.1.x86_64 as a component of Red Hat Enterprise Linux Server (v. 6)redhat_csaf

    Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259

    https://access.redhat.com/errata/RHSA-2011:0871
  • Behobentigervnc-debuginfo-0:1.0.90-0.15.20110314svn4359.el6_1.1.x86_64 as a component of Red Hat Enterprise Linux Server Optional (v. 6)redhat_csaf

    Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259

    https://access.redhat.com/errata/RHSA-2011:0871
  • Behobentigervnc-server-0:1.0.90-0.15.20110314svn4359.el6_1.1.i686 as a component of Red Hat Enterprise Linux Server (v. 6)redhat_csaf

    Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259

    https://access.redhat.com/errata/RHSA-2011:0871
  • Behobentigervnc-server-0:1.0.90-0.15.20110314svn4359.el6_1.1.ppc64 as a component of Red Hat Enterprise Linux Server (v. 6)redhat_csaf

    Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259

    https://access.redhat.com/errata/RHSA-2011:0871
  • Behobentigervnc-server-0:1.0.90-0.15.20110314svn4359.el6_1.1.s390x as a component of Red Hat Enterprise Linux Server (v. 6)redhat_csaf

    Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259

    https://access.redhat.com/errata/RHSA-2011:0871
  • Behobentigervnc-server-0:1.0.90-0.15.20110314svn4359.el6_1.1.x86_64 as a component of Red Hat Enterprise Linux Server (v. 6)redhat_csaf

    Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259

    https://access.redhat.com/errata/RHSA-2011:0871
  • Behobentigervnc-server-applet-0:1.0.90-0.15.20110314svn4359.el6_1.1.noarch as a component of Red Hat Enterprise Linux Server Optional (v. 6)redhat_csaf

    Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259

    https://access.redhat.com/errata/RHSA-2011:0871
  • Behobentigervnc-server-module-0:1.0.90-0.15.20110314svn4359.el6_1.1.i686 as a component of Red Hat Enterprise Linux Server Optional (v. 6)redhat_csaf

    Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259

    https://access.redhat.com/errata/RHSA-2011:0871
  • Behobentigervnc-server-module-0:1.0.90-0.15.20110314svn4359.el6_1.1.ppc64 as a component of Red Hat Enterprise Linux Server Optional (v. 6)redhat_csaf

    Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259

    https://access.redhat.com/errata/RHSA-2011:0871
  • Behobentigervnc-server-module-0:1.0.90-0.15.20110314svn4359.el6_1.1.x86_64 as a component of Red Hat Enterprise Linux Server Optional (v. 6)redhat_csaf

    Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259

    https://access.redhat.com/errata/RHSA-2011:0871
02

cvss

Technischer Schweregrad, 0–10. Eine Zeile je Quelle.

5.8
010

Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen⚠ Quellen uneinig · low–medium · 2.6–5.8

v2.05.8mediumAV:N/AC:M/Au:N/C:P/I:P/A:Nprimary · NVD / NIST USAusnutzbarkeit 8.6 · Auswirkung 4.9
v2.04.9mediumAV:N/AC:M/Au:N/C:P/I:P/A:N/E:Usecondary · CVSS-BT (t0sche)
v2.02.6lowAV:N/AC:H/Au:N/C:P/I:N/A:Nsecondary · Red Hat Product Security US
03

schwächen

Die CWE-Schwächeklassen, zu denen dies gehört.

04

betroffene Produkte (23)

Betroffene Produkte und Versionsbereiche.

20 von 23 angezeigt
05

Advisories (1)

Hersteller- und Ökosystem-Meldungen dazu.

  • RHSA-2011:0871Red Hat Security Advisory: tigervnc security update2011-06-15csaf · redhat_csafUS

    Updated tigervnc packages that fix one security issue are now available for Red Hat Enterprise Linux 6. The Red Hat Security Response Team has rated this update as having moderate security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section.

06

auch bekannt als (3)

Weitere Namen und Kennungen dieser Entität.

07

quellen

Welche Quellen diesen Datensatz belegen und wann.

veröffentlicht 2011-05-26geändert 2026-06-16
09

Referenzen (33)

Externe Belege — Patches, Meldungen, Analysen.

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