[asterisk-bugs] [JIRA] (ASTERISK-26113) DNS Lookup Storm (DoS)

[Ross Beer (JIRA)]

Ross Beer created ASTERISK-26113:
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             Summary: DNS Lookup Storm (DoS)
                 Key: ASTERISK-26113
                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-26113
             Project: Asterisk
          Issue Type: Bug
      Security Level: None
          Components: Resources/res_pjsip
    Affects Versions: SVN
         Environment: CentOS 6.5 and Fedora 23.
            Reporter: Ross Beer


Asterisk is performing thousands of DNS lookups per minute. 

The lookups are for its own host name for A and AAAA records. These are milliseconds apart and produce a DoS attack on the name servers.

This can be confirmed by having incoming calls and performing a wireshark.



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