ccbbd187b1
The local hostname was blindly copied into the to the nn_name array. When the hostname exceeded 16 bytes, it would overflow. Truncate the hostname to 15 bytes plus a 0 terminator which is the "workstation name" suffix. Use defensive strlcpy() when filling nn_name in all cases. PR: 228354 Reported by: donald.buchholz@intel.com Reviewed by: jpaetzel, ian (prior version) Discussed with: Security Officer (gtetlow) MFC after: 3 days Security: Stack overflow with the hostname. Sponsored by: DARPA, AFRL Differential Revision: https://reviews.freebsd.org/D15936 |
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