In the Linux kernel, the following vulnerability has been resolved: ethtool: cmis: validate start_cmd_payload_size from module The CMIS firmware update code reads start_cmd_payload_size from the module's FW Management Features CDB reply and uses it directly as the byte count for memcpy. The destination buffer is 112 bytes (ETHTOOL_CMIS_CDB_LPL_MAX_PL_LENGTH - 8). So a malicious module (or corrupted response) can cause a OOB write later on in cmis_fw_update_start_download(). Let's error out. If modules that expect longer LPL writes actually exist we should revisit. struct cmis_cdb_start_fw_download_pl's definition has to move, no change there.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
| Linux | Linux | 6.11CNA affecteddefault affected | |
| Linux | Linux | >= c4f78134d45c9619339c96b4bea380b1d0699788, < 0696709e951be54c699664adf546d16e28974d53, >= c4f78134d45c9619339c96b4bea380b1d0699788, < 12c2496a71f82f63617971ca9b730dffa05cf58b, >= c4f78134d45c9619339c96b4bea380b1d0699788, < 63112b4515469d00008452d9cfe3fb3bf1aa2df3, >= c4f78134d45c9619339c96b4bea380b1d0699788, < a46340da00385be7fb16c62425ebc20006f2d5d8CNA affecteddefault unaffected |
CVSS version used by this source: 3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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