335 lines
17 KiB
JSON
335 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-2025-38618",
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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": "2025-04-16T04:51:24.029Z",
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"datePublished": "2025-08-22T13:01:24.678Z",
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"dateUpdated": "2026-08-05T12:03:33.962Z"
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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": "2026-08-05T12:03:33.962Z"
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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\nvsock: Do not allow binding to VMADDR_PORT_ANY\n\nIt is possible for a vsock to autobind to VMADDR_PORT_ANY. This can\ncause a use-after-free when a connection is made to the bound socket.\nThe socket returned by accept() also has port VMADDR_PORT_ANY but is not\non the list of unbound sockets. Binding it will result in an extra\nrefcount decrement similar to the one fixed in fcdd2242c023 (vsock: Keep\nthe binding until socket destruction).\n\nModify the check in __vsock_bind_connectible() to also prevent binding\nto VMADDR_PORT_ANY."
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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 vulnerability is triggered through the bind() syscall on an AF_VSOCK socket; vsock is a local socket interface with no remote network reachability, so the attacker needs local system access.\nAC:L - The accept()-based trigger is fully deterministic — create a loopback vsock listener, connect, accept, then bind the accepted socket to VMADDR_PORT_ANY to force the extra sock_put; no race or uncontrolled condition is required.\nPR:L - Any unprivileged local user can create AF_VSOCK sockets and use the loopback (VMADDR_CID_LOCAL) transport; the autobind path performs no capability check, so only basic user privileges are needed.\nUI:N - The entire sequence is performed by the attacker's own process via syscalls; no action by any other user is required.\nS:U - The use-after-free corrupts kernel memory within the same kernel security authority and does not cross a VM/hypervisor or IOMMU boundary.\nC:H - A use-after-free of the struct sock lets the attacker reclaim the freed object with controlled data, enabling arbitrary kernel memory disclosure.\nI:H - The UAF/refcount underflow enables heap grooming and write primitives over the reclaimed object, permitting kernel memory modification and potential control-flow hijack.\nA:H - The refcount underflow frees a still-referenced socket, causing use-after-free access that reliably crashes/panics the kernel."
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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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"net/vmw_vsock/af_vsock.c"
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],
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"versions": [
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{
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"version": "d021c344051af91f42c5ba9fdedc176740cbd238",
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"lessThan": "c04a2c1ca25b9b23104124d3b2d349d934e302de",
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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": "d021c344051af91f42c5ba9fdedc176740cbd238",
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"lessThan": "d1a5b1964cef42727668ac0d8532dae4f8c19386",
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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": "d021c344051af91f42c5ba9fdedc176740cbd238",
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"lessThan": "cf86704798c1b9c46fa59dfc2d662f57d1394d79",
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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": "d021c344051af91f42c5ba9fdedc176740cbd238",
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"lessThan": "f138be5d7f301fddad4e65ec66dfc3ceebf79be3",
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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": "d021c344051af91f42c5ba9fdedc176740cbd238",
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"lessThan": "44bd006d5c93f6a8f28b106cbae2428c5d0275b7",
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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": "d021c344051af91f42c5ba9fdedc176740cbd238",
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"lessThan": "32950b1907919be86a7a2697d6f93d57068b3865",
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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": "d021c344051af91f42c5ba9fdedc176740cbd238",
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"lessThan": "8f01093646b49f6330bb2d36761983fd829472b1",
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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": "d021c344051af91f42c5ba9fdedc176740cbd238",
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"lessThan": "d73960f0cf03ef1dc9e96ec7a20e538accc26d87",
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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": "d021c344051af91f42c5ba9fdedc176740cbd238",
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"lessThan": "aba0c94f61ec05315fa7815d21aefa4c87f6a9f4",
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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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"net/vmw_vsock/af_vsock.c"
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],
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"versions": [
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{
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"version": "3.9",
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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": "3.9",
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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": "5.4.297",
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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": "5.10.241",
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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": "5.15.190",
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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": "6.1.148",
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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": "6.6.102",
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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": "6.12.42",
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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": "6.15.10",
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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": "6.16.1",
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"lessThanOrEqual": "6.16.*",
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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": "6.17",
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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": "3.9",
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"versionEndExcluding": "5.4.297"
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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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"references": [
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{
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"url": "https://git.kernel.org/stable/c/c04a2c1ca25b9b23104124d3b2d349d934e302de"
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},
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{
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"url": "https://git.kernel.org/stable/c/d1a5b1964cef42727668ac0d8532dae4f8c19386"
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},
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{
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"url": "https://git.kernel.org/stable/c/cf86704798c1b9c46fa59dfc2d662f57d1394d79"
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},
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{
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"url": "https://git.kernel.org/stable/c/f138be5d7f301fddad4e65ec66dfc3ceebf79be3"
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},
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{
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"url": "https://git.kernel.org/stable/c/44bd006d5c93f6a8f28b106cbae2428c5d0275b7"
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},
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{
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"url": "https://git.kernel.org/stable/c/32950b1907919be86a7a2697d6f93d57068b3865"
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},
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{
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"url": "https://git.kernel.org/stable/c/8f01093646b49f6330bb2d36761983fd829472b1"
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},
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{
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"url": "https://git.kernel.org/stable/c/d73960f0cf03ef1dc9e96ec7a20e538accc26d87"
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},
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{
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"url": "https://git.kernel.org/stable/c/aba0c94f61ec05315fa7815d21aefa4c87f6a9f4"
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}
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],
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"title": "vsock: Do not allow binding to VMADDR_PORT_ANY",
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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": "2025-11-03T17:40:30.483Z"
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}
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},
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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-2025-38618",
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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": "2026-06-10T20:42:30.337631Z"
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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": "2026-06-11T18:44:23.948Z"
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}
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}
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]
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}
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} |