[asterisk-bugs] [JIRA] Closed: (ASTERISK-20349) DEBUG_MALLOC version of ast_strndup() may cause buffer overflow

[Digium Subversion (JIRA)]

     [ https://issues.asterisk.org/jira/browse/ASTERISK-20349?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Digium Subversion closed ASTERISK-20349.
----------------------------------------

    Resolution: Fixed

> DEBUG_MALLOC version of ast_strndup() may cause buffer overflow
> ---------------------------------------------------------------
>
>                 Key: ASTERISK-20349
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-20349
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Core/AstMM
>    Affects Versions: 11.0.0-beta1
>            Reporter: Brent Eagles
>            Assignee: Richard Mudgett
>
> In astmm.c, __ast_strndup() calls strcpy() causing strlen(source) characters to be copied into a destination buffer that is sized according to the number of characters to be copied (n), where n may be less than strlen(source). High fence violations are correctly reported if strlen(source) > n.

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