314 lines
17 KiB
JSON
314 lines
17 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-2024-42285",
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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": "2024-07-30T07:40:12.262Z",
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"datePublished": "2024-08-17T09:08:51.302Z",
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"dateUpdated": "2026-08-05T11:36:21.283Z"
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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": "2026-08-05T11:36:21.283Z"
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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\nRDMA/iwcm: Fix a use-after-free related to destroying CM IDs\n\niw_conn_req_handler() associates a new struct rdma_id_private (conn_id) with\nan existing struct iw_cm_id (cm_id) as follows:\n\n conn_id->cm_id.iw = cm_id;\n cm_id->context = conn_id;\n cm_id->cm_handler = cma_iw_handler;\n\nrdma_destroy_id() frees both the cm_id and the struct rdma_id_private. Make\nsure that cm_work_handler() does not trigger a use-after-free by only\nfreeing of the struct rdma_id_private after all pending work has finished."
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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:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
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"baseScore": 9.8,
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"baseSeverity": "CRITICAL"
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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:N - The iWARP CM state machine exists exclusively to process connection-management events (CONNECT_REQUEST/REPLY, ESTABLISHED, DISCONNECT, CLOSE) originated by remote peers over MPA/TCP, and the freed-object dereference occurs inside `cm_work_handler()`/`cma_iw_handler()` while handling such a remote event. Network-facing RDMA targets over iWARP (nvmet-rdma, NFS/RDMA svcrdma, iSER, SMB Direct, on cxgb4/irdma/qedr or software siw) drive both the event delivery and the `rdma_destroy_id()` teardown from remote peer actions.\nAC:L - The attacker controls both sides of the race: the connect/abort lifecycle of their own connection generates the queued CM events, and forcing a connection rejection or resetting the TCP connection drives the concurrent `rdma_destroy_id()`. The sequence can be repeated in a tight loop across many concurrent connections until the window is hit, with no condition outside attacker influence.\nPR:N - The RDMA-CM/iWARP handshake and the entire connect-reject-disconnect cycle complete before any upper-layer authentication (NVMe-oF Connect/in-band auth, RPCSEC, SMB session setup), so an unauthenticated peer that can reach the target port suffices. The local variant is even weaker-gated: rdma_ucm's `/dev/infiniband/rdma_cm` handlers contain no capability checks at all.\nUI:N - Exploitation is entirely driven by the attacker's own connection attempts and teardowns against an already-listening RDMA service. No action by any local user or administrator is required.\nS:U - The use-after-free corrupts kernel heap memory and hijacks kernel control flow within the same security authority as the vulnerable component. No VM, IOMMU, or sandbox boundary is crossed.\nC:H - After the free, `cma_iw_handler()` reads `id_priv->state`, `id_priv->cm_id`, and other fields from the reallocated slab object, and the resulting control-flow hijack via the stale `event_handler` pointer can be leveraged for arbitrary kernel memory disclosure. Per kernel guidance a use-after-free is scored High for confidentiality.\nI:H - `cma_cm_event_handler()` performs an indirect call through `id_priv->id.event_handler` read from the freed object, and `mutex_lock(&id_priv->handler_mutex)` writes into it — together giving heap-spray-based arbitrary write and code-execution potential. This is a full control-flow hijack primitive, not a bounded corruption.\nA:H - Even without successful grooming, dereferencing the freed `rdma_id_private` (mutex operations and an indirect call on garbage) reliably oopses or panics the kernel, as observed by KASAN slab-use-after-free reports during blktests. The trigger is repeatable, so a remote attacker can crash the target at will."
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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/infiniband/core/iwcm.c"
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],
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"versions": [
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{
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"version": "59c68ac31e15ad09d2cb04734e3c8c544a95f8d4",
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"lessThan": "d91d253c87fd1efece521ff2612078a35af673c6",
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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": "59c68ac31e15ad09d2cb04734e3c8c544a95f8d4",
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"lessThan": "7f25f296fc9bd0435be14e89bf657cd615a23574",
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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": "59c68ac31e15ad09d2cb04734e3c8c544a95f8d4",
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"lessThan": "94ee7ff99b87435ec63211f632918dc7f44dac79",
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"status": "affected",
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{
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"version": "59c68ac31e15ad09d2cb04734e3c8c544a95f8d4",
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"lessThan": "557d035fe88d78dd51664f4dc0e1896c04c97cf6",
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"status": "affected",
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{
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"version": "59c68ac31e15ad09d2cb04734e3c8c544a95f8d4",
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"lessThan": "dc8074b8901caabb97c2d353abd6b4e7fa5a59a5",
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"status": "affected",
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"versionType": "git"
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{
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"version": "59c68ac31e15ad09d2cb04734e3c8c544a95f8d4",
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"lessThan": "ff5bbbdee08287d75d72e65b72a2b76d9637892a",
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"status": "affected",
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{
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"version": "59c68ac31e15ad09d2cb04734e3c8c544a95f8d4",
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"lessThan": "ee39384ee787e86e9db4efb843818ef0ea9cb8ae",
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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": "59c68ac31e15ad09d2cb04734e3c8c544a95f8d4",
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"lessThan": "aee2424246f9f1dadc33faa78990c1e2eb7826e4",
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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/infiniband/core/iwcm.c"
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],
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"versions": [
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{
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"version": "4.8",
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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": "4.8",
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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": "4.19.320",
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"lessThanOrEqual": "4.19.*",
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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": "5.4.282",
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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": "5.10.224",
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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": "5.15.165",
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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": "6.1.103",
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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": "6.6.44",
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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": "6.10.3",
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"lessThanOrEqual": "6.10.*",
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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": "6.11",
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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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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.8",
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"references": [
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"url": "https://git.kernel.org/stable/c/d91d253c87fd1efece521ff2612078a35af673c6"
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},
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{
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"url": "https://git.kernel.org/stable/c/7f25f296fc9bd0435be14e89bf657cd615a23574"
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},
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{
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"url": "https://git.kernel.org/stable/c/94ee7ff99b87435ec63211f632918dc7f44dac79"
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},
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{
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"url": "https://git.kernel.org/stable/c/557d035fe88d78dd51664f4dc0e1896c04c97cf6"
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},
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{
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"url": "https://git.kernel.org/stable/c/dc8074b8901caabb97c2d353abd6b4e7fa5a59a5"
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},
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{
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"url": "https://git.kernel.org/stable/c/ff5bbbdee08287d75d72e65b72a2b76d9637892a"
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},
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{
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"url": "https://git.kernel.org/stable/c/ee39384ee787e86e9db4efb843818ef0ea9cb8ae"
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},
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{
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"url": "https://git.kernel.org/stable/c/aee2424246f9f1dadc33faa78990c1e2eb7826e4"
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}
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],
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"title": "RDMA/iwcm: Fix a use-after-free related to destroying CM IDs",
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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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"metrics": [
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{
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"other": {
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"type": "ssvc",
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"content": {
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"id": "CVE-2024-42285",
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"role": "CISA Coordinator",
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"options": [
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{
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"Exploitation": "none"
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},
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{
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"Automatable": "no"
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},
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{
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"Technical Impact": "partial"
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}
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],
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"version": "2.0.3",
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"timestamp": "2024-09-10T16:11:23.465400Z"
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}
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}
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2024-09-12T17:33:30.490Z"
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}
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},
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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/2025/01/msg00001.html"
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},
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{
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"url": "https://lists.debian.org/debian-lts-announce/2024/10/msg00003.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": "2025-11-03T22:03:32.078Z"
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}
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}
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]
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}
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} |