ESB-2019.0307 - [Debian] libvncserver: Multiple vulnerabilities 2019-02-04

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2019.0307
                       libvncserver security update
                              4 February 2019

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           libvncserver
Publisher:         Debian
Operating System:  Debian GNU/Linux 9
Impact/Access:     Execute Arbitrary Code/Commands -- Remote/Unauthenticated
                   Denial of Service               -- Remote/Unauthenticated
                   Access Confidential Data        -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-20024 CVE-2018-20023 CVE-2018-20022
                   CVE-2018-20021 CVE-2018-20020 CVE-2018-20019
                   CVE-2018-15127 CVE-2018-15126 CVE-2018-6307

Reference:         ESB-2019.0298
                   ESB-2019.0295
                   ESB-2019.0123

Original Bulletin: 
   http://www.debian.org/security/2019/dsa-4383

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Debian Security Advisory DSA-4383-1                   security@debian.org
https://www.debian.org/security/                     Salvatore Bonaccorso
February 03, 2019                     https://www.debian.org/security/faq
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Package        : libvncserver
CVE ID         : CVE-2018-6307 CVE-2018-15126 CVE-2018-15127 CVE-2018-20019
                 CVE-2018-20020 CVE-2018-20021 CVE-2018-20022 CVE-2018-20023
                 CVE-2018-20024
Debian Bug     : 916941

Pavel Cheremushkin discovered several vulnerabilities in libvncserver, a
library to implement VNC server/client functionalities, which might result in
the execution of arbitrary code, denial of service or information disclosure.

For the stable distribution (stretch), these problems have been fixed in
version 0.9.11+dfsg-1.3~deb9u1.

We recommend that you upgrade your libvncserver packages.

For the detailed security status of libvncserver please refer to its
security tracker page at:
https://security-tracker.debian.org/tracker/libvncserver

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/

Mailing list: debian-security-announce@lists.debian.org

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