Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: nfc: llcp: fix WKS SAP hijacking via prefix match in nfc_llcp_wks_sap() nfc_llcp_wks_sap() compares only service_name_len bytes, so a short service_name like "u" matches longer WKS strings like "urn:nfc:sn:snep". Fix by requiring exact length match before strncmp().
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected d646960f7986fefb460a2b062d5ccc8ccfeacc3a before 0c83a8a45fed256ccc5fe7160b436b671fc79fb8; affected d646960f7986fefb460a2b062d5ccc8ccfeacc3a before aa555ed5ed0d15efbaf27e0e9f152a6df715278a; affected d646960f7986fefb460a2b062d5ccc8ccfeacc3a before 32b5f0b338bf59391a1cff9a6190a72c4d2c1ba8; affected d646960f7986fefb460a2b062d5ccc8ccfeacc3a before 6fad2c34d451d11a9f3f946cae1105fee91d96b8; affected d646960f7986fefb460a2b062d5ccc8ccfeacc3a before bf41af8f910cbb5d776a1dfa0671d31a7e262e28; affected d646960f7986fefb460a2b062d5ccc8ccfeacc3a before f234197f3bda3aea5d4b1e591d6bcb3660a8b3fc; affected d646960f7986fefb460a2b062d5ccc8ccfeacc3a before 0a0412745c86acd089c6460da715ab966b1615e7; affected d646960f7986fefb460a2b062d5ccc8ccfeacc3a before 408cff6bd60636df201274d320edfdfde9ed41db |
| Linux / Linux | affected 3.3; unaffected 0 before 3.3; unaffected 5.10.271 through 5.10.*; unaffected 5.15.222 through 5.15.*; unaffected 6.1.189 through 6.1.*; unaffected 6.6.158 through 6.6.*; unaffected 6.12.112 through 6.12.*; unaffected 6.18.55 through 6.18.*; unaffected 7.2.9 through 7.2.*; unaffected 7.3 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/0c83a8a45fed256ccc5fe7160b436b671fc79fb8
- https://git.kernel.org/stable/c/aa555ed5ed0d15efbaf27e0e9f152a6df715278a
- https://git.kernel.org/stable/c/32b5f0b338bf59391a1cff9a6190a72c4d2c1ba8
- https://git.kernel.org/stable/c/6fad2c34d451d11a9f3f946cae1105fee91d96b8
- https://git.kernel.org/stable/c/bf41af8f910cbb5d776a1dfa0671d31a7e262e28
- https://git.kernel.org/stable/c/f234197f3bda3aea5d4b1e591d6bcb3660a8b3fc
- https://git.kernel.org/stable/c/0a0412745c86acd089c6460da715ab966b1615e7
- https://git.kernel.org/stable/c/408cff6bd60636df201274d320edfdfde9ed41db