[asterisk-bugs] [JIRA] (ASTERISK-28295) Non-breaking space handling

[Philip Mott (JIRA)]

Philip Mott created ASTERISK-28295:
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             Summary: Non-breaking space handling
                 Key: ASTERISK-28295
                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-28295
             Project: Asterisk
          Issue Type: Bug
      Security Level: None
          Components: General
    Affects Versions: 13.23.1
         Environment: Debian 9.6
            Reporter: Philip Mott
            Severity: Minor


We received a SIP invite packet of the following form:

bq. INVITE sip:01234567890%A0 at 1.2.3.4

Which led to the following Asterisk errors:

bq. json.c: Error building JSON from '\{s: s, s: s\}': Invalid UTF-8 string.
bq. stasis_channels.c: Error creating message

I believe "%A0" is a URL-encoded non-breaking space, so it seems like that's not being handled correctly.

Two questions:

# Is this something that can be fixed?
# Is there a simple way for me to recreate the error?  Only I'm finding it difficult to put a non-breaking space into the Dial command, and obviously if I can replicate the issue then I can look into ways of protecting against it if need be.

P.S. Sorry I couldn't find a component relating to json.c when filling out this form so went with 'General' - please correct if wrong!



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