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Advisories

hashcat through 7.1.2 Off-by-One Out-of-Bounds Heap Write in fgetl()

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severity
medium
date
Affecting

  • hashcat <= 7.1.2

CWE
  • CWE-193 Off-by-one Error
CVSS
6.9
CVSS V4 Vector
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N
Credit
Piotr Kowalczyk
Description
hashcat's fgetl() function in src/filehandling.c writes a null terminator one byte past the caller's buffer when an input line is exactly the buffer length. Attackers can trigger this out-of-bounds heap write by providing a hash file, potfile, or wordlist containing a line of exactly HCBUFSIZ_LARGE bytes.

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