292 lines
15 KiB
JSON
292 lines
15 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"cveMetadata": {
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"cveId": "CVE-2024-36889",
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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": "2024-05-30T15:25:07.065Z",
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"datePublished": "2024-05-30T15:28:56.794Z",
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"dateUpdated": "2026-05-11T20:16:27.021Z"
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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": "2026-05-11T20:16:27.021Z"
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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\nmptcp: ensure snd_nxt is properly initialized on connect\n\nChristoph reported a splat hinting at a corrupted snd_una:\n\n WARNING: CPU: 1 PID: 38 at net/mptcp/protocol.c:1005 __mptcp_clean_una+0x4b3/0x620 net/mptcp/protocol.c:1005\n Modules linked in:\n CPU: 1 PID: 38 Comm: kworker/1:1 Not tainted 6.9.0-rc1-gbbeac67456c9 #59\n Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.11.0-2.el7 04/01/2014\n Workqueue: events mptcp_worker\n RIP: 0010:__mptcp_clean_una+0x4b3/0x620 net/mptcp/protocol.c:1005\n Code: be 06 01 00 00 bf 06 01 00 00 e8 a8 12 e7 fe e9 00 fe ff ff e8\n \t8e 1a e7 fe 0f b7 ab 3e 02 00 00 e9 d3 fd ff ff e8 7d 1a e7 fe\n \t<0f> 0b 4c 8b bb e0 05 00 00 e9 74 fc ff ff e8 6a 1a e7 fe 0f 0b e9\n RSP: 0018:ffffc9000013fd48 EFLAGS: 00010293\n RAX: 0000000000000000 RBX: ffff8881029bd280 RCX: ffffffff82382fe4\n RDX: ffff8881003cbd00 RSI: ffffffff823833c3 RDI: 0000000000000001\n RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000\n R10: 0000000000000000 R11: fefefefefefefeff R12: ffff888138ba8000\n R13: 0000000000000106 R14: ffff8881029bd908 R15: ffff888126560000\n FS: 0000000000000000(0000) GS:ffff88813bd00000(0000) knlGS:0000000000000000\n CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n CR2: 00007f604a5dae38 CR3: 0000000101dac002 CR4: 0000000000170ef0\n Call Trace:\n <TASK>\n __mptcp_clean_una_wakeup net/mptcp/protocol.c:1055 [inline]\n mptcp_clean_una_wakeup net/mptcp/protocol.c:1062 [inline]\n __mptcp_retrans+0x7f/0x7e0 net/mptcp/protocol.c:2615\n mptcp_worker+0x434/0x740 net/mptcp/protocol.c:2767\n process_one_work+0x1e0/0x560 kernel/workqueue.c:3254\n process_scheduled_works kernel/workqueue.c:3335 [inline]\n worker_thread+0x3c7/0x640 kernel/workqueue.c:3416\n kthread+0x121/0x170 kernel/kthread.c:388\n ret_from_fork+0x44/0x50 arch/x86/kernel/process.c:147\n ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243\n </TASK>\n\nWhen fallback to TCP happens early on a client socket, snd_nxt\nis not yet initialized and any incoming ack will copy such value\ninto snd_una. If the mptcp worker (dumbly) tries mptcp-level\nre-injection after such ack, that would unconditionally trigger a send\nbuffer cleanup using 'bad' snd_una values.\n\nWe could easily disable re-injection for fallback sockets, but such\ndumb behavior already helped catching a few subtle issues and a very\nlow to zero impact in practice.\n\nInstead address the issue always initializing snd_nxt (and write_seq,\nfor consistency) at connect time."
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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/mptcp/protocol.c"
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],
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"versions": [
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{
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"version": "8fd738049ac3d67a937d36577763b47180aae1ad",
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"lessThan": "99951b62bf20cec9247f633a3bea898338b9e5b4",
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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": "8fd738049ac3d67a937d36577763b47180aae1ad",
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"lessThan": "dc941fec0719d0471a5902424d6b2a17df233193",
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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": "8fd738049ac3d67a937d36577763b47180aae1ad",
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"lessThan": "39ca83ed73db9edcc6d70c0dc7a73085a4725012",
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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": "8fd738049ac3d67a937d36577763b47180aae1ad",
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"lessThan": "aa0c07c1f20e05b30019bff083ec43665536f06f",
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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": "8fd738049ac3d67a937d36577763b47180aae1ad",
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"lessThan": "592f69b41766d366dbb8ff4ef5a67c4396527bbe",
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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": "8fd738049ac3d67a937d36577763b47180aae1ad",
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"lessThan": "fb7a0d334894206ae35f023a82cad5a290fd7386",
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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/mptcp/protocol.c"
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],
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"versions": [
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{
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"version": "5.9",
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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": "5.9",
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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": "5.10.218",
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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": "5.15.159",
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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": "6.1.91",
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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": "6.6.31",
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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": "6.8.10",
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"lessThanOrEqual": "6.8.*",
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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": "6.9",
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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": "5.9",
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"versionEndExcluding": "5.10.218"
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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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"versionStartIncluding": "5.9",
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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": "5.9",
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"versionEndExcluding": "6.1.91"
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"versionStartIncluding": "5.9",
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"versionEndExcluding": "6.6.31"
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{
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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/99951b62bf20cec9247f633a3bea898338b9e5b4"
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},
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{
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"url": "https://git.kernel.org/stable/c/dc941fec0719d0471a5902424d6b2a17df233193"
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{
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"url": "https://git.kernel.org/stable/c/39ca83ed73db9edcc6d70c0dc7a73085a4725012"
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"url": "https://git.kernel.org/stable/c/aa0c07c1f20e05b30019bff083ec43665536f06f"
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{
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"url": "https://git.kernel.org/stable/c/592f69b41766d366dbb8ff4ef5a67c4396527bbe"
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{
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"url": "https://git.kernel.org/stable/c/fb7a0d334894206ae35f023a82cad5a290fd7386"
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}
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],
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"title": "mptcp: ensure snd_nxt is properly initialized on connect",
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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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"timestamp": "2024-06-17T17:29:56.745706Z",
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"id": "CVE-2024-36889",
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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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"role": "CISA Coordinator",
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"version": "2.0.3"
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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": "2024-06-17T17:33:02.390Z"
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"dateUpdated": "2024-08-02T03:43:49.113Z"
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"title": "CVE Program Container",
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"references": [
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"dataVersion": "5.2"
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} |