[asterisk-bugs] [JIRA] (ASTERISK-21466) [crash] "sip show peers" crashes Asterisk with ~3500 registered peers

[Guillaume Knispel (JIRA)]

     [ https://issues.asterisk.org/jira/browse/ASTERISK-21466?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Guillaume Knispel updated ASTERISK-21466:
-----------------------------------------

    Attachment: fix_sip_show_peers_stack_overflow_asterisk_11.3.0.patch
    
> [crash] "sip show peers" crashes Asterisk with ~3500 registered peers
> ---------------------------------------------------------------------
>
>                 Key: ASTERISK-21466
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-21466
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Channels/chan_sip/General
>    Affects Versions: 11.3.0
>         Environment: Linux 32 bits
>            Reporter: Guillaume Knispel
>            Severity: Critical
>         Attachments: fix_sip_show_peers_stack_overflow_asterisk_11.3.0.patch
>
>
> When there are lots of registered sip peers (around 3500, but it could depend on the IP adresses), the "sip show peers" CLI command immediately crashes Asterisk by stack overflow. (Trying to get the same informations through AMI very probably leads to the same crash.)
> This is caused by the use of ast_strdupa() in the main loop of _sip_show_peers()

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