363 lines
19 KiB
JSON
363 lines
19 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-2025-37838",
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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": "2025-04-16T04:51:23.952Z",
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"datePublished": "2025-04-18T14:20:55.389Z",
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"dateUpdated": "2026-08-05T11:57:47.833Z"
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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": "2026-08-05T11:57:47.833Z"
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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\nHSI: ssi_protocol: Fix use after free vulnerability in ssi_protocol Driver Due to Race Condition\n\nIn the ssi_protocol_probe() function, &ssi->work is bound with\nssip_xmit_work(), In ssip_pn_setup(), the ssip_pn_xmit() function\nwithin the ssip_pn_ops structure is capable of starting the\nwork.\n\nIf we remove the module which will call ssi_protocol_remove()\nto make a cleanup, it will free ssi through kfree(ssi),\nwhile the work mentioned above will be used. The sequence\nof operations that may lead to a UAF bug is as follows:\n\nCPU0 CPU1\n\n | ssip_xmit_work\nssi_protocol_remove |\nkfree(ssi); |\n | struct hsi_client *cl = ssi->cl;\n | // use ssi\n\nFix it by ensuring that the work is canceled before proceeding\nwith the cleanup in ssi_protocol_remove()."
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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 - The vulnerable work item is armed only through the local phonet netdev transmit path (`ssip_pn_xmit()` via a local socket) and the free occurs on local driver teardown (unbind/module removal or interface down); no remote peer data reaches this code.\nAC:L - The attacker directly controls the arming side of the race by continuously queuing TX packets so `ssip_xmit_work()` is pending/running, and can repeat the teardown trigger indefinitely until the window is hit, so success does not depend on conditions outside the attacker's influence.\nPR:L - Reaching `ssip_pn_xmit()` requires only a local process able to transmit on the phonet interface (a packet/phonet socket capability), not full administrative control of the system; per the higher-severity rule this is scored as low rather than high privileges.\nUI:N - No victim action is needed — the attacker queues transmit work and the teardown/reset path executes without any user having to open a file, mount, or interact.\nS:U - The use-after-free is confined to kernel heap memory within the same security authority; there is no VM, IOMMU, or sandbox boundary crossed.\nC:H - The freed `struct ssi_protocol` is dereferenced for `ssi->cl` and its list heads after `kfree()`; by reclaiming the slab the attacker controls the pointers that are followed and dereferenced, yielding an arbitrary kernel memory read primitive.\nI:H - The post-free code writes into the freed object (`spin_lock_bh(&ssi->lock)`, `list_del()` unlink, `ssi->txid++`, `send_state`) and calls `mod_timer()` on `timer_list` structures inside reclaimed memory, so attacker-sprayed data supplies a timer function pointer and unlink write — a control-flow hijack / arbitrary write primitive.\nA:H - Even unexploited, the use-after-free reliably causes memory corruption, a `BUG_ON(list_empty(&ssi->cmdqueue))` panic, or an oops on the freed list/timer state, crashing the kernel."
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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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"drivers/hsi/clients/ssi_protocol.c"
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],
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"versions": [
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{
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"version": "df26d639e2f4628732a8da5a0f71e4e652ce809b",
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"lessThan": "d03abc1c2b21324550fa71e12d53e7d3498e0af6",
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"status": "affected",
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"versionType": "git"
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},
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"lessThan": "4a8c29beb8a02b5a0a9d77d608aa14b6f88a6b86",
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"status": "affected",
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"version": "df26d639e2f4628732a8da5a0f71e4e652ce809b",
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"status": "affected",
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"versionType": "git"
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{
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"version": "df26d639e2f4628732a8da5a0f71e4e652ce809b",
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"lessThan": "ae5a6a0b425e8f76a9f0677e50796e494e89b088",
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"status": "affected",
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},
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{
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"version": "df26d639e2f4628732a8da5a0f71e4e652ce809b",
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"lessThan": "834e602d0cc7c743bfce734fad4a46cefc0f9ab1",
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"status": "affected",
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{
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"version": "df26d639e2f4628732a8da5a0f71e4e652ce809b",
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"lessThan": "4b4194c9a7a8f92db39e8e86c85f4fb12ebbec4f",
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"status": "affected",
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{
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"version": "df26d639e2f4628732a8da5a0f71e4e652ce809b",
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"lessThan": "e3f88665a78045fe35c7669d2926b8d97b892c11",
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"status": "affected",
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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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"drivers/hsi/clients/ssi_protocol.c"
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],
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"versions": [
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{
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"version": "4.8",
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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": "4.8",
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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": "5.4.293",
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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": "5.10.237",
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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": "5.15.181",
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"lessThanOrEqual": "5.15.*",
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"status": "unaffected",
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},
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{
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"version": "6.1.135",
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"lessThanOrEqual": "6.1.*",
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"status": "unaffected",
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},
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{
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"version": "6.6.88",
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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": "6.12.24",
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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": "6.13.12",
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"lessThanOrEqual": "6.13.*",
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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": "6.14.3",
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"lessThanOrEqual": "6.14.*",
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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": "6.15",
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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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"operator": "OR",
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{
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},
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{
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"url": "https://git.kernel.org/stable/c/72972552d0d0bfeb2dec5daf343a19018db36ffa"
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},
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{
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"url": "https://git.kernel.org/stable/c/d58493832e284f066e559b8da5ab20c15a2801d3"
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},
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{
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"url": "https://git.kernel.org/stable/c/58eb29dba712ab0f13af59ca2fe545f5ce360e78"
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},
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{
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"url": "https://git.kernel.org/stable/c/ae5a6a0b425e8f76a9f0677e50796e494e89b088"
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},
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{
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"url": "https://git.kernel.org/stable/c/834e602d0cc7c743bfce734fad4a46cefc0f9ab1"
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},
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{
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"url": "https://git.kernel.org/stable/c/4b4194c9a7a8f92db39e8e86c85f4fb12ebbec4f"
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},
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{
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"url": "https://git.kernel.org/stable/c/e3f88665a78045fe35c7669d2926b8d97b892c11"
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}
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],
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"title": "HSI: ssi_protocol: Fix use after free vulnerability in ssi_protocol Driver Due to Race Condition",
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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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"cvssV3_1": {
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"scope": "UNCHANGED",
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"version": "3.1",
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"baseScore": 7.8,
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"attackVector": "LOCAL",
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"baseSeverity": "HIGH",
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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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"integrityImpact": "HIGH",
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"userInteraction": "NONE",
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"attackComplexity": "LOW",
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"availabilityImpact": "HIGH",
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"privilegesRequired": "LOW",
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"confidentialityImpact": "HIGH"
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}
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},
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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-2025-37838",
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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": "total"
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}
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],
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"version": "2.0.3",
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"timestamp": "2025-04-21T14:38:43.871416Z"
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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": "2025-04-21T14:41:43.037Z"
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}
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},
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{
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"title": "CVE Program Container",
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"references": [
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{
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"url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html"
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},
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{
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"url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html"
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}
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],
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"providerMetadata": {
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"orgId": "af854a3a-2127-422b-91ae-364da2661108",
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"shortName": "CVE",
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"dateUpdated": "2025-11-03T19:56:09.541Z"
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}
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}
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]
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}
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} |