269 lines
13 KiB
JSON
269 lines
13 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2026-80823",
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"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"state": "PUBLISHED",
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"assignerShortName": "Linux",
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"dateReserved": "2026-08-26T14:34:25.795Z",
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"datePublished": "2026-09-04T15:27:46.153Z",
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"dateUpdated": "2026-10-19T08:44:15.864Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"shortName": "Linux",
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"dateUpdated": "2026-10-19T08:44:15.864Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnfc: st21nfca: validate ATR_REQ length against the received frame\n\nst21nfca_tm_recv_atr_req() checks that the received ATR_REQ frame is at\nleast ST21NFCA_ATR_REQ_MIN_SIZE and that the self-declared atr_req->length\nis at least sizeof(struct st21nfca_atr_req), but never checks that\natr_req->length does not exceed the actual received length (skb->len).\n\nst21nfca_tm_send_atr_res() then trusts the declared length:\n\n\tgb_len = atr_req->length - sizeof(struct st21nfca_atr_req);\n\t...\n\tmemcpy(atr_res->gbi, atr_req->gbi, gb_len);\n\nso an RF peer that sends a short frame but sets atr_req->length larger\nthan the frame makes gb_len exceed the general bytes actually present,\nand the memcpy reads out of bounds past the received skb. Those bytes are\nplaced in the ATR_RES and sent back to the peer (kernel-memory disclosure\nto a proximity attacker); a larger declared length is an out-of-bounds\nread (DoS).\n\nReject frames whose declared length exceeds the received length. The\nadjacent nfc_tm_activated() path in the same function already derives its\ngeneral-bytes length from skb->len rather than the declared field.\n\nFound by 0sec (https://0sec.ai) using automated source analysis; the\nmissing bound is evident from source. Compile-tested."
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}
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],
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"affected": [
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "unaffected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"drivers/nfc/st21nfca/dep.c"
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],
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"versions": [
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{
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"version": "1892bf844ea0261736bd5e75546fc996e9daeedf",
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"lessThan": "785df00bb3ae3206674a43284eb06dac575b5c64",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "1892bf844ea0261736bd5e75546fc996e9daeedf",
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"lessThan": "2c1ad291f4cdc357f9527b688c6fda9c6ffa7890",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "1892bf844ea0261736bd5e75546fc996e9daeedf",
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"lessThan": "dd26d30f40c43ad9cfe2f25c6ea0ead1dd51d5aa",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "1892bf844ea0261736bd5e75546fc996e9daeedf",
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"lessThan": "9635507fe82949e429b3cd938876a9917125b151",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "1892bf844ea0261736bd5e75546fc996e9daeedf",
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"lessThan": "0f344944c506b4f02d2b098489f7268b438c369e",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "1892bf844ea0261736bd5e75546fc996e9daeedf",
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"lessThan": "bfcca5f42c9aa4eadef1e5fe7bb23783d7fcc96d",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "1892bf844ea0261736bd5e75546fc996e9daeedf",
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"lessThan": "304f5b414f4051d324b8c4a3ab0e79f7dc7e150e",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "1892bf844ea0261736bd5e75546fc996e9daeedf",
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"lessThan": "f33cecf69095c43be88567fef92b180b858f7369",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "1892bf844ea0261736bd5e75546fc996e9daeedf",
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"lessThan": "5cdcca5d62a66eda6b774110a44cba67bc1a8d1d",
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"status": "affected",
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"versionType": "git"
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}
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]
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},
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "affected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"drivers/nfc/st21nfca/dep.c"
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],
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"versions": [
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{
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"version": "3.17",
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"status": "affected"
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},
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{
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"version": "0",
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"lessThan": "3.17",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.10.267",
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"lessThanOrEqual": "5.10.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.15.218",
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"lessThanOrEqual": "5.15.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.1.185",
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"lessThanOrEqual": "6.1.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.6.154",
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"lessThanOrEqual": "6.6.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.12.106",
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"lessThanOrEqual": "6.12.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.18.47",
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"lessThanOrEqual": "6.18.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "7.1.11",
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"lessThanOrEqual": "7.1.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "7.2.1",
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"lessThanOrEqual": "7.2.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "7.3",
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"lessThanOrEqual": "*",
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"status": "unaffected",
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"versionType": "original_commit_for_fix"
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}
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]
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}
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],
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"cpeApplicability": [
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{
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"nodes": [
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{
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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "3.17",
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"versionEndExcluding": "5.10.267"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "3.17",
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"versionEndExcluding": "5.15.218"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "3.17",
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"versionEndExcluding": "6.1.185"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "3.17",
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"versionEndExcluding": "6.6.154"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "3.17",
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"versionEndExcluding": "6.12.106"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "3.17",
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"versionEndExcluding": "6.18.47"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "3.17",
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"versionEndExcluding": "7.1.11"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "3.17",
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"versionEndExcluding": "7.2.1"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "3.17",
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"versionEndExcluding": "7.3"
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}
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]
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}
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]
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}
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],
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/785df00bb3ae3206674a43284eb06dac575b5c64"
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},
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{
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"url": "https://git.kernel.org/stable/c/2c1ad291f4cdc357f9527b688c6fda9c6ffa7890"
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},
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{
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"url": "https://git.kernel.org/stable/c/dd26d30f40c43ad9cfe2f25c6ea0ead1dd51d5aa"
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},
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{
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"url": "https://git.kernel.org/stable/c/9635507fe82949e429b3cd938876a9917125b151"
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},
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{
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"url": "https://git.kernel.org/stable/c/0f344944c506b4f02d2b098489f7268b438c369e"
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},
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{
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"url": "https://git.kernel.org/stable/c/bfcca5f42c9aa4eadef1e5fe7bb23783d7fcc96d"
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},
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{
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"url": "https://git.kernel.org/stable/c/304f5b414f4051d324b8c4a3ab0e79f7dc7e150e"
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},
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{
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"url": "https://git.kernel.org/stable/c/f33cecf69095c43be88567fef92b180b858f7369"
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},
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{
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"url": "https://git.kernel.org/stable/c/5cdcca5d62a66eda6b774110a44cba67bc1a8d1d"
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}
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],
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"title": "nfc: st21nfca: validate ATR_REQ length against the received frame",
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"x_generator": {
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"engine": "bippy-1.2.0"
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}
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}
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}
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} |