ESB-2017.2747 - [UNIX/Linux][Debian] quagga: Denial of service - Remote/unauthenticated 2017-10-31

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2017.2747
                          quagga security update
                              31 October 2017

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

Product:           quagga
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
CVE Names:         CVE-2017-16227  

Original Bulletin: 
   http://www.debian.org/security/2017/dsa-4011

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

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Debian Security Advisory DSA-4011-1                   security@debian.org
https://www.debian.org/security/                     Salvatore Bonaccorso
October 30, 2017                      https://www.debian.org/security/faq
- - -------------------------------------------------------------------------

Package        : quagga
CVE ID         : CVE-2017-16227
Debian Bug     : 879474

It was discovered that the bgpd daemon in the Quagga routing suite does
not properly calculate the length of multi-segment AS_PATH UPDATE
messages, causing bgpd to drop a session and potentially resulting in
loss of network connectivity.

For the oldstable distribution (jessie), this problem has been fixed
in version 0.99.23.1-1+deb8u4.

For the stable distribution (stretch), this problem has been fixed in
version 1.1.1-3+deb9u1.

We recommend that you upgrade your quagga 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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