Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: wifi: libipw: fix key index receive bound checks libipw_rx() reads skb->data[hdrlen + 3] to extract the WEP key index in both the software-decrypt key selection path and the hardware-decrypted IV/ICV strip path. In both places the existing guard only checks skb->len >= hdrlen + 3, which proves bytes up to hdrlen + 2 but not the byte at hdrlen + 3. Require hdrlen + 4 bytes before reading that item in both paths. This is a local source-boundary check only; it does not change the key index semantics.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected b453872c35cfcbdbf5a794737817f7d4e7b1b579 before bb18262c19feb690ddde58c70e3ad04bc6fe566e; affected b453872c35cfcbdbf5a794737817f7d4e7b1b579 before 09d4a1bc3a08bb0e19bdf250b9f575cfef0bae82; affected b453872c35cfcbdbf5a794737817f7d4e7b1b579 before 2836a870f612a8a6d9e390d00fa2cf6c90aa5808; affected b453872c35cfcbdbf5a794737817f7d4e7b1b579 before 0b61c465ea62063593bc9ac186871b69e58ae991; affected b453872c35cfcbdbf5a794737817f7d4e7b1b579 before 062840bdc9ee06169b3c371bf66711f1d7ec0bf4; affected b453872c35cfcbdbf5a794737817f7d4e7b1b579 before c54b643e9a0936d038921c547736574fd7382cea; affected b453872c35cfcbdbf5a794737817f7d4e7b1b579 before 74ed3669f26803b1761c1f55403062bea44c3466 |
| Linux / Linux | affected 2.6.14; unaffected 0 before 2.6.14; 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 6.12.111 through 6.12.*; unaffected 6.18.53 through 6.18.*; unaffected 7.2 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/bb18262c19feb690ddde58c70e3ad04bc6fe566e
- https://git.kernel.org/stable/c/09d4a1bc3a08bb0e19bdf250b9f575cfef0bae82
- https://git.kernel.org/stable/c/2836a870f612a8a6d9e390d00fa2cf6c90aa5808
- https://git.kernel.org/stable/c/0b61c465ea62063593bc9ac186871b69e58ae991
- https://git.kernel.org/stable/c/062840bdc9ee06169b3c371bf66711f1d7ec0bf4
- https://git.kernel.org/stable/c/c54b643e9a0936d038921c547736574fd7382cea
- https://git.kernel.org/stable/c/74ed3669f26803b1761c1f55403062bea44c3466