[asterisk-bugs] [JIRA] (ASTERISK-25304) res_pjsip: XML sanitization may write past buffer

[Kevin Harwell (JIRA)]

     [ https://issues.asterisk.org/jira/browse/ASTERISK-25304?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Kevin Harwell updated ASTERISK-25304:
-------------------------------------

    Target Release Version/s: 13.6.0

> res_pjsip: XML sanitization may write past buffer
> -------------------------------------------------
>
>                 Key: ASTERISK-25304
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-25304
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Resources/res_pjsip
>    Affects Versions: 13.4.0
>            Reporter: Joshua Colp
>            Assignee: Joshua Colp
>      Target Release: 13.6.0
>
>
> The ast_sip_sanitize_xml function currently uses the strncat function incorrectly. The length provided to it may cause it to write past the provided output buffer into other memory. This can cause a crash. The crash may result from the writing or because the PJSIP library expects the value to be NULL terminated when it is not.



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