ESB-2018.2922 - [Debian] asterisk: Denial of service - Remote/unauthenticated 2018-09-28

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2018.2922
             [SECURITY] [DLA 1523-1] asterisk security update
                             28 September 2018

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

Product:           asterisk
Publisher:         Debian
Operating System:  Debian GNU/Linux 8
Impact/Access:     Denial of Service -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-17281  

Reference:         ESB-2018.2826

Original Bulletin: 
   https://lists.debian.org/debian-lts-announce/2018/09/msg00034.html

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Package        : asterisk
Version        : 1:11.13.1~dfsg-2+deb8u6
CVE ID         : CVE-2018-17281
Debian Bug     : 909554

Sean Bright discovered that Asterisk, a PBX and telephony toolkit,
contained a stack overflow vulnerability in the res_http_websocket.so
module that allowed remote attackers to crash Asterisk via specially
crafted HTTP requests to upgrade the connection to a websocket.

For Debian 8 "Jessie", this problem has been fixed in version
1:11.13.1~dfsg-2+deb8u6.

We recommend that you upgrade your asterisk packages.

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