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CVE-2020-26117

CVE-2020-26117

This page contains facts from public vulnerability sources. Check the original advisory before updating.

In rfb/CSecurityTLS.cxx and rfb/CSecurityTLS.java in TigerVNC before 1.11.0, viewers mishandle TLS certificate exceptions. They store the certificates as authorities, meaning that the owner of a certificate could impersonate any server after a client had added an exception.

CVSS 8.1 · High · EPSS 3.1% · Fix available

Published
Updated

Stack: system

Affected products and versions

  • n/a

    Versions
    • n/a: Affected

    No fix published

  • tigervnc Debian:12

    Affected ranges
    • ECOSYSTEM: < 1.10.1+dfsg-9

    Update to 1.10.1+dfsg-9

  • tigervnc Debian:13

    Affected ranges
    • ECOSYSTEM: < 1.10.1+dfsg-9

    Update to 1.10.1+dfsg-9

  • tigervnc Debian:14

    Affected ranges
    • ECOSYSTEM: < 1.10.1+dfsg-9

    Update to 1.10.1+dfsg-9

  • tigervnc Ubuntu:18.04:LTS

    Versions
    • 1.7.0+dfsg-7ubuntu1
    • 1.7.0+dfsg-8ubuntu2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • tigervnc Ubuntu:Pro:20.04:LTS

    Versions
    • 1.9.0+dfsg-3
    • 1.9.0+dfsg-4
    • 1.10.1+dfsg-1
    • 1.10.1+dfsg-2
    • 1.10.1+dfsg-3
    Affected ranges
    • ECOSYSTEM: < 1.10.1+dfsg-3ubuntu0.1+esm2

    Update to 1.10.1+dfsg-3ubuntu0.1+esm2

Original sources

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