205 lines
9.6 KiB
JSON
205 lines
9.6 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-2026-53188",
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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": "2026-06-09T07:44:35.390Z",
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"datePublished": "2026-06-25T08:39:00.960Z",
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"dateUpdated": "2026-10-19T19:57:27.314Z"
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},
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"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"shortName": "Linux",
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"dateUpdated": "2026-08-05T12:33:55.380Z"
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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/core: Validate the passed in fops for ib_get_ucaps()\n\nSashiko pointed out it is not safe to rely only on the devt because\nchar/block alias so if the user finds a block device with the same dev_t\nit can masquerade as a ucap cdev fd.\n\nTest the f_ops to only accept authentic cdevs."
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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:C/C:H/I:H/A:H",
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"baseScore": 8.8,
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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 vulnerable path is reached locally through the RDMA uverbs character device by submitting GET_CONTEXT with a user-controlled fd array.\nAC:L - There is no race or fragile memory condition; on a system with a matching accessible block-device dev_t, exploitation is a straightforward fd substitution.\nPR:L - An unprivileged local user can open the world-accessible uverbs device, and the bypass avoids the intended root-only UCAP character device permission check.\nUI:N - No victim action is required once the attacker can run local code and open the relevant device files.\nS:C - The bypass can grant mlx5 RDMA control capabilities including other-VHCA control, plausibly affecting HCA/vport resources outside the attacker's normal RDMA security context.\nC:H - Unauthorized RDMA control and flow steering can expose or redirect RDMA traffic and resources that should require an explicitly granted UCAP.\nI:H - The attacker can obtain privileged RDMA/HCA control capabilities that may allow modification or redirection of RDMA flow state and other protected device behavior.\nA:H - The same unauthorized control can be used to drop, disrupt, or exhaust RDMA/HCA resources, causing loss of availability for affected RDMA workloads."
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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/ucaps.c"
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],
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"versions": [
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{
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"version": "61e51682816d395307f78ae06d640089054c28ab",
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"lessThan": "96b6e98ff12d50ed5817230c6f1188e1150d225d",
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"status": "affected",
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"status": "affected",
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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/ucaps.c"
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],
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"versions": [
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{
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"version": "6.15",
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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": "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": "6.18.36",
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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": "7.0.13",
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"lessThanOrEqual": "7.0.*",
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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",
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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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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.15",
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"versionEndExcluding": "6.18.36"
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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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}
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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/96b6e98ff12d50ed5817230c6f1188e1150d225d"
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},
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{
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"url": "https://git.kernel.org/stable/c/aa181287ebdcc53ee0ba5c2f8243e2d541ebc19b"
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},
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{
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"url": "https://git.kernel.org/stable/c/4a1b1ac2744694a2ecd66a84bdb1445f4ef24bee"
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}
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],
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"title": "RDMA/core: Validate the passed in fops for ib_get_ucaps()",
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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-2026-53188",
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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": "total"
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}
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],
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"version": "2.0.3",
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"timestamp": "2026-10-16T15:26:27.618185Z"
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}
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}
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}
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],
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"problemTypes": [
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{
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"descriptions": [
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{
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"lang": "en",
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"type": "CWE",
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"cweId": "CWE-285",
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"description": "CWE-285 Improper Authorization"
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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": "2026-10-19T19:57:27.314Z"
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}
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}
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}
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} |