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#33 Mhash MD5 functions stomp on libsasl

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nobody
5
2012-09-14
2007-05-31
BJ Dierkes
No

It was found that php-mhash SegFaults on Redhat Enterprise Linux 3 i386/x86_64 when php-ldap is loaded at the same time. Please reference the PHP bug:

http://bugs.php.net/bug.php?id=41545

After further investigation it appears that the following functions conflict with functions of the same name in libsasl:

MD5Init
MD5Update
MD5Final
MD5Transform

A patch will be submitted, however the work around seems to be to rename the functions in the Mhash lib/md5.c library with a 'mhash_' prefix or similar.

Discussion

  • BJ Dierkes
    BJ Dierkes
    2007-05-31

    Patch to rename MD5 functions and references in lib/md5.c, lib/mhash.c, and lib/mhash_md5.h

     
    Attachments
  • BJ Dierkes
    BJ Dierkes
    2007-05-31

    Logged In: YES
    user_id=876891
    Originator: YES

    I have patched the source code to make the following changes:

    Files:

    lib/md5.c
    lib/mhash.c
    lib/mhash_md5.h

    MD5Init becomes mhash_MD5Init
    MD5Update becomes mhash_MD5Update
    MD5Final becomes mhash_MD5Update
    MD5Transform becomes mhash_MD5Transform
    MD5Context becomes mhash_MD5Context

    Please note once again, this issues only effects Redhat Enterprise Linux 3 as it stomps on similar functions in the libsasl library (The functions have probably been renamed in sasl since the Rhel3 release). This is not necessarily a bug in the Mhash library... however if you encounter issues like the one described in the PHP bug above, you may wish to apply this patch.
    File Added: mhash-0.9.9-md5.patch