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

[Brent Eagles (JIRA)]

DEBUG_MALLOC version of ast_strndup() may cause buffer overflow
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                 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


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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