310 lines
16 KiB
JSON
310 lines
16 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-2026-68144",
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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": "2026-07-30T09:28:09.370Z",
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"datePublished": "2026-08-10T11:59:08.437Z",
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"dateUpdated": "2026-10-19T20:58:53.730Z"
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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": "2026-08-19T16:30:06.882Z"
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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\nphonet: pep: fix use-after-free in pep_get_sb()\n\npep_get_sb() doesn't consider that pskb_may_pull() might have relocated\nthe skb data, and continue to access the older pointer, causing UAF.\n\nReproduced under KASAN:\n\n BUG: KASAN: slab-use-after-free in pep_get_sb+0x234/0x3b0\n Read of size 1 at addr ff11000105510f50 by task repro/157\n pep_get_sb+0x234/0x3b0\n pipe_handler_do_rcv+0x5f7/0xa10\n pep_do_rcv+0x203/0x410\n __sk_receive_skb+0x471/0x4a0\n phonet_rcv+0x5b3/0x6c0\n __netif_receive_skb+0xcc/0x1d0\n\nRefetch the header with skb_header_pointer() after pskb_may_pull(), so\nthe possibly stale pointer is no longer dereferenced. There are better\nways to solve this, but, this is the less instrusive one."
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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:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
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"baseScore": 9.8,
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"baseSeverity": "CRITICAL"
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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:N - The bug is hit in phonet_rcv() via __netif_receive_skb() when processing inbound Phonet pipe packets on a netdev; on modem-equipped phones this path is reachable from the cellular/BT-facing modem link without local access.\nAC:L - The attacker fully controls crafted TLV sb_len values in Phonet pipe messages to deterministically force pskb_may_pull() skb head reallocation; no race or victim-specific state beyond an existing/connecting pipe socket is required.\nPR:N - Exploitation requires only delivering a malformed Phonet packet to a listening/connecting pipe endpoint; phonet_rcv() performs no authentication or capability checks before delivering to pep_do_rcv() and pep_get_sb().\nUI:N - No end-user action is needed; triggering only requires a background phonet pipe listener or an in-progress connect/accept on affected Nokia/modem platforms where phonet daemons run continuously.\nS:U - Impact is confined to kernel memory/process integrity on the affected host; successful exploitation yields local privilege escalation within the same kernel security domain, not a cross-VM or cross-container boundary escape.\nC:H - Confirmed slab use-after-free read in pep_get_sb(); stale post-realloc pointer dereference can leak adjacent heap contents and is a standard primitive for arbitrary kernel memory disclosure.\nI:H - Use-after-free on skb header memory enables heap grooming and control of freed object contents, providing a well-established path to arbitrary kernel writes and code execution beyond the immediate one-byte read.\nA:H - KASAN reproduced a slab use-after-free oops in pep_get_sb() during packet receive; even without full exploit development, malformed Phonet pipe packets can reliably panic or hang the kernel on affected systems."
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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/phonet/pep.c"
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],
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"versions": [
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{
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"version": "9641458d3ec42def729fde64669abf07f3220cd5",
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"lessThan": "c4a52cb4da8d57d060b1d52085d25147a238dac2",
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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": "9641458d3ec42def729fde64669abf07f3220cd5",
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"lessThan": "df198743859fefba2f824115f8151dd62d7ad6d8",
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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": "9641458d3ec42def729fde64669abf07f3220cd5",
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"lessThan": "1d81e19fc57a5ee55b4497d01bc0510d76fb9578",
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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": "9641458d3ec42def729fde64669abf07f3220cd5",
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"lessThan": "8d931a75a38b9bb584a4071f5ebbd52755fc35ee",
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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": "9641458d3ec42def729fde64669abf07f3220cd5",
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"lessThan": "17f78c0c0d41d738ee236eb6e841e39395188054",
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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": "9641458d3ec42def729fde64669abf07f3220cd5",
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"lessThan": "a48a889b60f73edb0399a8b08284a2ab0bd0295f",
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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": "9641458d3ec42def729fde64669abf07f3220cd5",
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"lessThan": "25e3641beb51333bfbb155af2fd2573a61113af2",
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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": "9641458d3ec42def729fde64669abf07f3220cd5",
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"lessThan": "0f71f852a96af9685858ce59fda34ecbf85c283d",
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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/phonet/pep.c"
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],
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"versions": [
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{
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"version": "2.6.28",
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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": "2.6.28",
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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": "5.10.265",
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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": "5.15.216",
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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": "6.1.183",
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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": "6.6.148",
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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": "6.12.101",
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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": "6.18.42",
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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": "7.1.6",
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"lessThanOrEqual": "7.1.*",
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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": "7.2",
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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": "2.6.28",
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"versionEndExcluding": "5.10.265"
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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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"references": [
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{
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"url": "https://git.kernel.org/stable/c/c4a52cb4da8d57d060b1d52085d25147a238dac2"
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},
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{
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"url": "https://git.kernel.org/stable/c/df198743859fefba2f824115f8151dd62d7ad6d8"
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},
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{
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"url": "https://git.kernel.org/stable/c/1d81e19fc57a5ee55b4497d01bc0510d76fb9578"
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},
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{
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"url": "https://git.kernel.org/stable/c/8d931a75a38b9bb584a4071f5ebbd52755fc35ee"
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},
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{
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"url": "https://git.kernel.org/stable/c/17f78c0c0d41d738ee236eb6e841e39395188054"
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},
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{
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"url": "https://git.kernel.org/stable/c/a48a889b60f73edb0399a8b08284a2ab0bd0295f"
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},
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{
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"url": "https://git.kernel.org/stable/c/25e3641beb51333bfbb155af2fd2573a61113af2"
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},
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{
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"url": "https://git.kernel.org/stable/c/0f71f852a96af9685858ce59fda34ecbf85c283d"
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}
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],
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"title": "phonet: pep: fix use-after-free in pep_get_sb()",
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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-2026-68144",
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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": "yes"
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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": "2026-10-16T15:44:46.818096Z"
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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-416",
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"description": "CWE-416 Use After Free"
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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": "2026-10-19T20:58:53.730Z"
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}
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}
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]
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}
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} |