302 lines
14 KiB
JSON
302 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-2022-48654",
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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": "2024-02-25T13:44:28.317Z",
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"datePublished": "2024-04-28T13:00:56.564Z",
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"dateUpdated": "2026-08-05T08:51:38.661Z"
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},
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"cna": {
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"shortName": "Linux",
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"dateUpdated": "2026-08-05T08:51:38.661Z"
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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\nnetfilter: nfnetlink_osf: fix possible bogus match in nf_osf_find()\n\nnf_osf_find() incorrectly returns true on mismatch, this leads to\ncopying uninitialized memory area in nft_osf which can be used to leak\nstale kernel stack data to userspace."
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}
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"baseScore": 7.1,
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},
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{
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"lang": "en",
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"value": "AV:L - The vulnerable path is reached by configuring an nftables osf expression via NETLINK_NETFILTER and then evaluating it on a TCP SYN; nftables/netlink is Local per kernel guidance, not a remote packet-only bug.\nAC:L - An attacker can create an osf rule with no matching fingerprints (empty global finger list) and send a local TCP SYN so nf_osf_find() always takes the bogus-true path; no race or attacker-uncontrollable condition is required.\nPR:L - nfnetlink gates on CAP_NET_ADMIN via netlink_net_capable() against the socket’s network-namespace user_ns, which an unprivileged user obtains with unshare -Urn, so this is Low rather than real-root High.\nUI:N - The attacker configures the osf expression and triggers evaluation with their own TCP SYN; no separate victim action is required.\nS:U - Impact stays within the local host kernel authority (stack/pointer disclosure or oops); this is not a VM escape, IOMMU bypass, or other cross-boundary effect.\nC:H - On mismatch, uninitialized const char * genre/version are passed to strscpy/snprintf and up to NFT_OSF_MAXGENRELEN bytes from the wild addresses are copied into an nft register visible to userspace, enabling kernel memory disclosure.\nI:N - The bug only reads through uninitialized pointers and copies into the attacker-controlled nft register path; there is no OOB write, UAF, or control-flow hijack primitive.\nA:H - Dereferencing uninitialized genre/version pointers commonly faults on unmapped addresses and oopses/panics the kernel, which is High availability impact under kernel CVSS guidance."
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}
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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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"defaultStatus": "unaffected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"status": "affected",
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{
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"product": "Linux",
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"defaultStatus": "affected",
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"programFiles": [
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],
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"versions": [
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{
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"version": "5.2",
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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": "5.2",
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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": "5.4.215",
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"lessThanOrEqual": "5.4.*",
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"status": "unaffected",
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{
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"version": "5.10.146",
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"version": "5.15.71",
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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": "5.19.12",
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"lessThanOrEqual": "5.19.*",
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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": "6.0",
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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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"cpeApplicability": [
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"nodes": [
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"content": {
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"timestamp": "2024-07-16T20:35:56.717348Z",
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