[asterisk-bugs] [JIRA] (ASTERISK-24887) 2 or more digits tag are not accepted in a=crypto lines

[Makoto Dei (JIRA)]

     [ https://issues.asterisk.org/jira/browse/ASTERISK-24887?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Makoto Dei updated ASTERISK-24887:
----------------------------------

    Attachment: sip-crypto-tag.patch

> 2 or more digits tag are not accepted in a=crypto lines
> -------------------------------------------------------
>
>                 Key: ASTERISK-24887
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-24887
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Channels/chan_sip/SRTP
>    Affects Versions: 11.17.0
>            Reporter: Makoto Dei
>            Severity: Minor
>         Attachments: sip-crypto-tag.patch
>
>
> RFC 4568 Section 9.1 (https://tools.ietf.org/html/rfc4568#section-9.1) says:
>    "a=crypto:" tag 1*WSP crypto-suite 1*WSP key-params
>                                            *(1*WSP session-param)
>    tag              = 1*9DIGIT
> So valid tag is between 0 and 999999999.
> But SDP parser of chan_sip accepts only tag between 1 and 9.
> Attached patch will fix the problem.



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