[asterisk-bugs] [JIRA] Commented: (ASTERISK-19971) Segfault in realtime_multi_ldap (possible invalid arguments)

[Matt Jordan (JIRA)]

    [ https://issues.asterisk.org/jira/browse/ASTERISK-19971?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=196343#comment-196343 ] 

Matt Jordan commented on ASTERISK-19971:
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Suspended due to lack of activity. Please request a bug marshal in #asterisk-bugs on the IRC network irc.freenode.net to reopen the issue should you have the additional information requested.  Further information can be found at http://www.asterisk.org/developers/bug-guidelines



> Segfault in realtime_multi_ldap (possible invalid arguments)
> ------------------------------------------------------------
>
>                 Key: ASTERISK-19971
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-19971
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>    Affects Versions: 1.8.11.1
>         Environment: Ubuntu 10.04 64-bit
>            Reporter: Lars Peter Thomsen
>            Assignee: Lars Peter Thomsen
>         Attachments: debug_asterisk_gdb2.txt, debug_asterisk_gdb.txt, debug_asterisk_valgrind.txt
>
>
> Realtime LDAP module kills asterisk with a segfault when querying for extensions. It appears to happen in the realtime_multi_ldap function in res_config_ldap.c, where the newparam variable somehow is invalid (null or garbage). The warning in checking the variable is fired in several runs prior to the fault.
> Calls go through every time before the fault, with the aforementioned warning being fired each time, and on the 8th to 10th attempt, the segfault occurs.
> Disabling realtime extensions in extconfig.conf, so only users, peers and voicemail data is fetched from LDAP, while extensions are fetched from extensions.conf, causes the problem to not occur.
> Entry in extconfig.conf:
> extensions => ldap,"ou=extensions,dc=communica,dc=cabo,dc=dk",extensions
> Entry in res_ldap.conf:
>  ; Extensions Table
>  [extensions]
>  context = AstContext
>  exten = AstExtension
>  priority = AstPriority
>  app = AstApplication
>  appdata = AstApplicationData
>  additionalFilter=(objectClass=AsteriskExtension)

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