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NULL Pointer Dereference

CVE-2021-3671

Medium
6.5/10

Summary

A NULL Pointer De-reference was found in the way samba kerberos server prior to 4.13.12, 4.14.x prior to 4.14.8 and 4.15.x prior to 4.15.0rc6, handled missing 'sname' in TGS-REQ (Ticket Granting Server - Request). An authenticated user could use this flaw to crash the samba server.

  • LOW
  • NETWORK
  • NONE
  • UNCHANGED
  • NONE
  • LOW
  • NONE
  • HIGH

CWE-476 - NULL Pointer Dereference

A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit.

References

Advisory Timeline

  • Published