302 lines
15 KiB
JSON
302 lines
15 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-2022-48911",
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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": "2024-08-21T06:06:23.294Z",
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"datePublished": "2024-08-22T01:31:07.463Z",
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"dateUpdated": "2026-08-05T08:52:51.573Z"
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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": "2026-08-05T08:52:51.573Z"
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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: nf_queue: fix possible use-after-free\n\nEric Dumazet says:\n The sock_hold() side seems suspect, because there is no guarantee\n that sk_refcnt is not already 0.\n\nOn failure, we cannot queue the packet and need to indicate an\nerror. The packet will be dropped by the caller.\n\nv2: split skb prefetch hunk into separate change"
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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 - Exploitation requires configuring NFQUEUE (nftables/iptables + nfnetlink_queue) and driving local socket lifecycle so packets hit __nf_queue with a dying state->sk; this is a local netfilter/netlink path, not a remote packet-only attack.\nAC:L - The attacker controls both sides of the race by installing NFQUEUE rules, running a queue listener, and racing connect/close (as in the TCP_NEW_SYN_RECV selftest), so success does not depend on external conditions.\nPR:L - Setting up nfnetlink/nftables NFQUEUE needs CAP_NET_ADMIN, but that capability is obtainable inside an unprivileged user+network namespace via netlink_net_capable against the netns user_ns.\nUI:N - No victim interaction is required; the attacker configures the queue, generates traffic, and closes sockets independently.\nS:U - Impact is kernel memory corruption / privilege escalation within the same host security authority, not a VM escape or cross-boundary breakout.\nC:H - Unsafe sock_hold() on a socket with sk_refcnt already 0 is a use-after-free of struct sock, which can be leveraged for arbitrary kernel memory disclosure.\nI:H - The same sock UAF enables heap reclaim/spray and corrupted socket lifetime handling (illegitimate refs and later sock_gen_put/sk_free paths), supporting arbitrary write / control-flow hijacking.\nA:H - The UAF reliably causes kernel oops/panic (refcount addition-on-0 and related free-path corruption), so availability impact is High."
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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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"include/net/netfilter/nf_queue.h",
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"net/netfilter/nf_queue.c",
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"net/netfilter/nfnetlink_queue.c"
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],
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"versions": [
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{
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"version": "271b72c7fa82c2c7a795bc16896149933110672d",
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"lessThan": "21b27b2baa27423286e9b8d3f0b194d587083d95",
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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": "271b72c7fa82c2c7a795bc16896149933110672d",
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"lessThan": "ef97921ccdc243170fcef857ba2a17cf697aece5",
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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": "271b72c7fa82c2c7a795bc16896149933110672d",
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"lessThan": "34dc4a6a7f261736ef7183868a5bddad31c7f9e3",
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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": "271b72c7fa82c2c7a795bc16896149933110672d",
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"lessThan": "43c25da41e3091b31a906651a43e80a2719aa1ff",
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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": "271b72c7fa82c2c7a795bc16896149933110672d",
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"lessThan": "4d05239203fa38ea8a6f31e228460da4cb17a71a",
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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": "271b72c7fa82c2c7a795bc16896149933110672d",
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"lessThan": "dd648bd1b33a828f62befa696b206c688da0ec43",
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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": "271b72c7fa82c2c7a795bc16896149933110672d",
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"lessThan": "dcc3cb920bf7ba66ac5e9272293a9ba5f80917ee",
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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": "271b72c7fa82c2c7a795bc16896149933110672d",
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"lessThan": "c3873070247d9e3c7a6b0cf9bf9b45e8018427b1",
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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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"include/net/netfilter/nf_queue.h",
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"net/netfilter/nf_queue.c",
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"net/netfilter/nfnetlink_queue.c"
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],
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"versions": [
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{
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"version": "2.6.29",
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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": "2.6.29",
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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": "4.9.305",
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"lessThanOrEqual": "4.9.*",
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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": "4.14.270",
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"lessThanOrEqual": "4.14.*",
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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": "4.19.233",
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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": "5.4.183",
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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": "5.10.104",
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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": "5.15.27",
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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": "5.16.13",
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"lessThanOrEqual": "5.16.*",
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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": "5.17",
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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": "2.6.29",
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"versionEndExcluding": "4.9.305"
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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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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionEndExcluding": "4.19.233"
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionEndExcluding": "5.16.13"
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/21b27b2baa27423286e9b8d3f0b194d587083d95"
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},
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{
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"url": "https://git.kernel.org/stable/c/ef97921ccdc243170fcef857ba2a17cf697aece5"
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},
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{
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"url": "https://git.kernel.org/stable/c/34dc4a6a7f261736ef7183868a5bddad31c7f9e3"
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},
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{
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"url": "https://git.kernel.org/stable/c/43c25da41e3091b31a906651a43e80a2719aa1ff"
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},
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{
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"url": "https://git.kernel.org/stable/c/4d05239203fa38ea8a6f31e228460da4cb17a71a"
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},
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{
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"url": "https://git.kernel.org/stable/c/dd648bd1b33a828f62befa696b206c688da0ec43"
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},
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{
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"url": "https://git.kernel.org/stable/c/dcc3cb920bf7ba66ac5e9272293a9ba5f80917ee"
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},
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{
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"url": "https://git.kernel.org/stable/c/c3873070247d9e3c7a6b0cf9bf9b45e8018427b1"
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}
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],
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"title": "netfilter: nf_queue: fix possible use-after-free",
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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-2022-48911",
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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": "2024-09-10T15:34:00.950489Z"
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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": "2024-09-12T17:33:02.033Z"
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}
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}
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]
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}
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} |