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Out-of-bounds Read


Severity High
Score 7.5/10


The 'stringprep_utf8_nfkc_normalize' function in 'lib/nfkc.c' in libidn before 1.33 allows context-dependent attackers to cause a Denial of Service (out-of-bounds read and crash) via crafted UTF-8 data.

  • LOW
  • NONE
  • NONE
  • NONE
  • NONE
  • HIGH

CWE-125 - Out-of-Bounds Read

Out-of-bounds read is a vulnerability that allows access to memory beyond the authorized accessible location. Such a vulnerability compromises the confidentiality of the trusted environment in the application and enables an attacker to launch further attacks by leveraging the exposed information.

Advisory Timeline

  • Published