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HIGHCVE-2026-43377Published Modified CNA Linux

CVE-2026-43377: ksmbd: Don't log keys in SMB3 signing and encryption key generation

In the Linux kernel, the following vulnerability has been resolved: ksmbd: Don't log keys in SMB3 signing and encryption key generation When KSMBD_DEBUG_AUTH logging is enabled, generate_smb3signingkey() and generate_smb3encryptionkey() log the session, signing, encryption, and decryption key bytes. Remove the logs to avoid exposing credentials.

Metrics

CVSS v3.1
8.1
Severity
HIGH
Fixed in
0
Affected Products
2

Fix available

03fe2d9ec166b7df9a8df6c0fdcfc210572e27e3f407cc37c21d51f9b9d4d20204b04890880cfa6ae4084ed720d7d5f4e975c9e4a6267a552dad3b24a441336115df26b966575de56daf7107ed474faed6.1.1676.6.1306.12.786.18.206.19.97.0c6b01b997a2094969e315f1ebfc1d64b8ae2163dfec5c70b82af3f59f15bb984df94e5ad1fccfb1e
Affected packages
  • Linux / Linux
    < 4084ed720d7d5f4e975c9e4a6267a552dad3b24a (from e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9) · < fec5c70b82af3f59f15bb984df94e5ad1fccfb1e (from e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9) · < 3fe2d9ec166b7df9a8df6c0fdcfc210572e27e3f (from e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9) · < 407cc37c21d51f9b9d4d20204b04890880cfa6ae (from e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9) · < c6b01b997a2094969e315f1ebfc1d64b8ae2163d (from e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9) · < 441336115df26b966575de56daf7107ed474faed (from e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9)
  • Linux / Linux
    5.15
    Fixed in 0, 6.1.167, 6.6.130, 6.12.78, 6.18.20, 6.19.9, 7.0
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
References