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Advisories

libsmb2 through 6.2 Heap Out-of-Bounds Read via smb2_decode_file_all_info

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Severity
high
Date
Affecting

  • libsmb2 <= 6.2

CWE
  • CWE-125 Out-of-bounds Read
CVSS
7.1
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Credit
tonghuaroot, HaiND from the Post and Telecommunication Institute of Technology
Description
libsmb2 through 6.2 contains a heap out-of-bounds read vulnerability in smb2_decode_file_all_info that allows malicious SMB servers to crash clients by sending an unchecked FileNameLength. Attackers controlling the server or performing man-in-the-middle on unsigned sessions can return crafted FileAllInformation replies to smb2_stat or smb2_fstat calls, crashing the client.

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