4c82238 Ticket #48226 - In MMR, double free coould occur under some special condition

Authored and Committed by nhosoi 3 years ago
    Ticket #48226 - In MMR, double free coould occur under some special condition
    
    Bug description:
      In a replicated topology, a authenticated user that have write access
      on an entry can send a series of operations that crash the server.
      The crash is due to an access to a already freed buffer.
    Fix description:
      To avoid the double free, duplicate a CSNSet and assign it to the
      Slapi_Value.
    
    https://fedorahosted.org/389/ticket/48226
    
    Reviewed by rmeggins@redhat.com (Thank you, Rich!!)
    
    (cherry picked from commit a0f8e0f981a046882db299a7a6d6d1c01bc19571)
    (cherry picked from commit bdbc81e62eb8d7b8dfb298c7ba983cf86353fe66)
    (cherry picked from commit 413414c98313a076111d8e40a7a10fa369433e6e)