342 lines
16 KiB
JSON
342 lines
16 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"cveMetadata": {
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"cveId": "CVE-2024-36288",
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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": "2024-06-21T11:16:40.621Z",
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"datePublished": "2024-06-21T11:18:46.152Z",
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"dateUpdated": "2026-10-15T00:42:20.440Z"
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},
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"containers": {
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"cna": {
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"shortName": "Linux",
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"dateUpdated": "2026-08-05T11:31:44.710Z"
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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\nSUNRPC: Fix loop termination condition in gss_free_in_token_pages()\n\nThe in_token->pages[] array is not NULL terminated. This results in\nthe following KASAN splat:\n\n KASAN: maybe wild-memory-access in range [0x04a2013400000008-0x04a201340000000f]"
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"baseScore": 9.8,
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"baseSeverity": "CRITICAL"
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},
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{
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"lang": "en",
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"value": "AV:N - The vulnerable code is the nfsd server-side RPCSEC_GSS context-init handler, reached by a remote client sending an RPC_AUTH_GSS INIT request to the NFS service over TCP (port 2049).\nAC:L - The array is never NULL-terminated, so the out-of-bounds read is triggered deterministically on every gss-proxy init request; the attacker can additionally vary token size and send concurrent requests to influence heap state.\nPR:N - The RPC_GSS_PROC_INIT path is the authentication handshake itself and executes before any credential is verified, so an unauthenticated remote client can reach it.\nUI:N - Triggering only requires sending a crafted RPCSEC_GSS init request to the server; no victim action is involved.\nS:U - The out-of-bounds access and its consequences remain within the kernel's own memory/security authority.\nC:H - The loop performs an unbounded out-of-bounds heap read and then dereferences the garbage pointers via put_page(), reading attacker-uncontrolled but arbitrary kernel memory; per guidance an unbounded OOB read is High.\nI:H - put_page() on the out-of-bounds garbage pointers decrements a refcount at an arbitrary address, a memory-corrupting write that can prematurely free a struct page and be leveraged into a use-after-free.\nA:H - Calling put_page() on wild pointers reliably causes oops/KASAN wild-memory-access and kernel crashes, and is remotely repeatable."
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}
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]
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}
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