ESB-2017.1915 - [UNIX/Linux][Debian] varnish: Denial of service - Remote/unauthenticated 2017-08-03

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2017.1915
                          varnish security update
                               3 August 2017

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

Product:           varnish
Publisher:         Debian
Operating System:  Debian GNU/Linux 8
                   Debian GNU/Linux 9
                   UNIX variants (UNIX, Linux, OSX)
Impact/Access:     Denial of Service -- Remote/Unauthenticated
Resolution:        Patch/Upgrade

Original Bulletin: 
   http://www.debian.org/security/2017/dsa-3924

Comment: This advisory references vulnerabilities in products which run on 
         platforms other than Debian. It is recommended that administrators 
         running varnish check for an updated version of the software for 
         their operating system.

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Debian Security Advisory DSA-3924-1                   security@debian.org
https://www.debian.org/security/                     Salvatore Bonaccorso
August 02, 2017                       https://www.debian.org/security/faq
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Package        : varnish
CVE ID         : not yet assigned
Debian Bug     : 870467

A denial of service vulnerability was discovered in Varnish, a state of
the art, high-performance web accelerator. Specially crafted HTTP
requests can cause the Varnish daemon to assert and restart, clearing
the cache in the process.

See https://varnish-cache.org/security/VSV00001.html for details.

For the oldstable distribution (jessie), this problem has been fixed
in version 4.0.2-1+deb8u1.

For the stable distribution (stretch), this problem has been fixed in
version 5.0.0-7+deb9u1.

We recommend that you upgrade your varnish packages.

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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