282 lines
14 KiB
JSON
282 lines
14 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-2025-38173",
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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": "2025-04-16T04:51:23.991Z",
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"datePublished": "2025-07-03T08:36:10.969Z",
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"dateUpdated": "2026-08-05T12:00:04.161Z"
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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": "2026-08-05T12:00:04.161Z"
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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\ncrypto: marvell/cesa - Handle zero-length skcipher requests\n\nDo not access random memory for zero-length skcipher requests.\nJust return 0."
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}
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],
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"metrics": [
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{
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"cvssV3_1": {
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"version": "3.1",
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"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
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"baseScore": 7.8,
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"baseSeverity": "HIGH"
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},
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"scenarios": [
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{
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"lang": "en",
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"value": "AV:L - The only trigger is a local `AF_ALG` socket (`algif_aead` with `authenc(...,cbc(aes))`) submitting an AAD-only request, or another in-kernel skcipher caller; the network consumers of `cbc(aes)` (IPsec ESP) explicitly reject `elen <= 0`, so no remote peer can drive `cryptlen == 0`.\nAC:L - The attacker directly and fully controls `req->cryptlen` by choosing the sendmsg payload length equal to the assoclen; the condition is deterministic with no race, memory-layout, or timing dependency.\nPR:L - Any unprivileged local user can open an `AF_ALG` socket and bind an `authenc(hmac(sha1),cbc(aes))` transform — no capabilities, no root, and no namespace tricks are required.\nUI:N - The attacker performs the entire sequence (socket/bind/sendmsg/recvmsg) on their own; no victim action or cooperation is involved.\nS:U - The faulty memory access and the resulting crash/leak are entirely within the kernel's own security authority on the same host; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - The driver reads memory it never validated for a zero-length request (\"Do not access random memory\"), and on the non-TDMA path returns stale CESA SRAM contents — leftover IV/crypto state from a previous, potentially different-security-context operation — straight back into the caller's user-visible IV buffer.\nI:H - The unvalidated zero-length request is still programmed into a DMA-capable crypto engine with a zero-length descriptor and `nents == 0` scatterlists, so the out-of-contract memory access is not read-only and the resulting corrupted state is written back into caller buffers; the higher value is taken given the ambiguity of the \"random memory\" access direction.\nA:H - On the common TDMA-equipped CESA parts, `dma_map_sg()` with `nents == 0` returns 0 and trips `WARN_ON_ONCE()` in `__dma_map_sg_attrs()`, producing a kernel splat that becomes a full panic under `panic_on_warn`, and the zero-length descriptor handed to the engine leaves the hardware in an undefined state."
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}
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]
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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/crypto/marvell/cesa/cipher.c"
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],
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"versions": [
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{
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"version": "f63601fd616ab370774fa00ea10bcaaa9e48e84c",
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"lessThan": "32d3e8049a8b60f18c5c39f5931bfb1130ac11c9",
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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": "f63601fd616ab370774fa00ea10bcaaa9e48e84c",
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"lessThan": "c064ae2881d839709bd72d484d5f2af157f46024",
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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": "f63601fd616ab370774fa00ea10bcaaa9e48e84c",
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"lessThan": "e1cc69da619588b1488689fe3535a0ba75a2b0e7",
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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": "f63601fd616ab370774fa00ea10bcaaa9e48e84c",
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"lessThan": "78ea1ff6cb413a03ff6f7af4e28e24b4461a0965",
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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": "f63601fd616ab370774fa00ea10bcaaa9e48e84c",
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"lessThan": "5e9666ac8b94c978690f937d59170c5237bd2c45",
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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": "f63601fd616ab370774fa00ea10bcaaa9e48e84c",
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"lessThan": "7894694b5d5b2ecfd7fb081d6f60b9e169ab4d13",
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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": "f63601fd616ab370774fa00ea10bcaaa9e48e84c",
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"lessThan": "c9610dda42bd382a96f97e68825cb5f66cd9e1dc",
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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": "f63601fd616ab370774fa00ea10bcaaa9e48e84c",
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"lessThan": "8a4e047c6cc07676f637608a9dd675349b5de0a7",
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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/crypto/marvell/cesa/cipher.c"
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],
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"versions": [
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{
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"version": "4.2",
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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": "4.2",
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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": "5.4.295",
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"lessThanOrEqual": "5.4.*",
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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": "5.10.239",
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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": "5.15.186",
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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": "6.1.142",
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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": "6.6.94",
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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": "6.12.34",
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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": "6.15.3",
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"lessThanOrEqual": "6.15.*",
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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": "6.16",
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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": "4.2",
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"versionEndExcluding": "5.4.295"
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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": "4.2",
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"versionEndExcluding": "5.10.239"
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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": "4.2",
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"versionEndExcluding": "5.15.186"
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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": "4.2",
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"versionEndExcluding": "6.1.142"
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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": "4.2",
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"versionEndExcluding": "6.6.94"
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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": "4.2",
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"versionEndExcluding": "6.12.34"
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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": "4.2",
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"versionEndExcluding": "6.15.3"
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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": "4.2",
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"versionEndExcluding": "6.16"
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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/32d3e8049a8b60f18c5c39f5931bfb1130ac11c9"
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},
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{
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"url": "https://git.kernel.org/stable/c/c064ae2881d839709bd72d484d5f2af157f46024"
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},
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{
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"url": "https://git.kernel.org/stable/c/e1cc69da619588b1488689fe3535a0ba75a2b0e7"
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},
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{
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"url": "https://git.kernel.org/stable/c/78ea1ff6cb413a03ff6f7af4e28e24b4461a0965"
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},
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{
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"url": "https://git.kernel.org/stable/c/5e9666ac8b94c978690f937d59170c5237bd2c45"
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},
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{
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"url": "https://git.kernel.org/stable/c/7894694b5d5b2ecfd7fb081d6f60b9e169ab4d13"
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},
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{
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"url": "https://git.kernel.org/stable/c/c9610dda42bd382a96f97e68825cb5f66cd9e1dc"
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},
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{
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"url": "https://git.kernel.org/stable/c/8a4e047c6cc07676f637608a9dd675349b5de0a7"
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}
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],
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"title": "crypto: marvell/cesa - Handle zero-length skcipher requests",
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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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"adp": [
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{
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"title": "CVE Program Container",
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"references": [
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{
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"url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"
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},
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{
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"url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html"
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}
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],
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"providerMetadata": {
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"orgId": "af854a3a-2127-422b-91ae-364da2661108",
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"shortName": "CVE",
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"dateUpdated": "2025-11-03T17:34:59.620Z"
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}
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}
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]
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}
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} |