235 lines
13 KiB
JSON
235 lines
13 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-2023-53065",
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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": "2025-05-02T15:51:43.548Z",
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"datePublished": "2025-05-02T15:55:18.789Z",
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"dateUpdated": "2026-10-15T21:41:25.473Z"
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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": "2026-08-05T09:12:35.911Z"
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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\nperf/core: Fix perf_output_begin parameter is incorrectly invoked in perf_event_bpf_output\n\nsyzkaller reportes a KASAN issue with stack-out-of-bounds.\nThe call trace is as follows:\n dump_stack+0x9c/0xd3\n print_address_description.constprop.0+0x19/0x170\n __kasan_report.cold+0x6c/0x84\n kasan_report+0x3a/0x50\n __perf_event_header__init_id+0x34/0x290\n perf_event_header__init_id+0x48/0x60\n perf_output_begin+0x4a4/0x560\n perf_event_bpf_output+0x161/0x1e0\n perf_iterate_sb_cpu+0x29e/0x340\n perf_iterate_sb+0x4c/0xc0\n perf_event_bpf_event+0x194/0x2c0\n __bpf_prog_put.constprop.0+0x55/0xf0\n __cls_bpf_delete_prog+0xea/0x120 [cls_bpf]\n cls_bpf_delete_prog_work+0x1c/0x30 [cls_bpf]\n process_one_work+0x3c2/0x730\n worker_thread+0x93/0x650\n kthread+0x1b8/0x210\n ret_from_fork+0x1f/0x30\n\ncommit 267fb27352b6 (\"perf: Reduce stack usage of perf_output_begin()\")\nuse on-stack struct perf_sample_data of the caller function.\n\nHowever, perf_event_bpf_output uses incorrect parameter to convert\nsmall-sized data (struct perf_bpf_event) into large-sized data\n(struct perf_sample_data), which causes memory overwriting occurs in\n__perf_event_header__init_id."
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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 bug is reached via local perf_event_open (CPU-wide bpf_event sideband) plus a local BPF unload/load trigger (bpf() or tc cls_bpf netlink); there is no network-facing path into perf_event_bpf_output.\nAC:L - An attacker who opens the bpf_event with sample_id_all, maps a small ring buffer, stops consuming it to force rb->lost, then loads/unloads a BPF program reliably hits the LOST path that performs the stack overflow; no attacker-uncontrollable race or layout is required.\nPR:L - Opening the required CPU-wide bpf_event needs CAP_PERFMON (perf_allow_cpu), and triggering BPF unload needs CAP_BPF or userns-reachable CAP_NET_ADMIN for tc/cls_bpf; these are delegatable non-root capabilities routinely granted to observability agents/containers, matching established PR:L scoring for CAP_PERFMON/CAP_BPF bugs.\nUI:N - The attacker opens the perf event, fills the ring buffer, and triggers BPF program unload entirely from their own processes; no separate victim action is required.\nS:U - The stack corruption and any resulting privilege escalation occur within the host kernel’s security authority and do not cross a VM, IOMMU, or sandbox boundary.\nC:H - This is an attacker-influenced kernel stack out-of-bounds write (perf_bpf_event treated as the much larger perf_sample_data); such memory corruption can be leveraged for arbitrary kernel read primitives.\nI:H - Overflowing past the on-stack perf_bpf_event in perf_event_bpf_event smashes saved frame/return state under attacker-controlled sample_type write patterns, enabling control-flow hijack and arbitrary kernel write/code execution.\nA:H - The same stack-out-of-bounds write KASAN reported causes kernel oops/panic even when not fully weaponized, which is High availability impact."
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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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"kernel/events/core.c"
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"status": "affected",
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"kernel/events/core.c"
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],
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{
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"version": "5.10",
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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": "5.10",
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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": "5.10.177",
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"lessThanOrEqual": "5.10.*",
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"status": "unaffected",
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},
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{
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},
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"version": "6.2.9",
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"status": "unaffected",
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},
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{
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"version": "6.3",
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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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"references": [
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"title": "perf/core: Fix perf_output_begin parameter is incorrectly invoked in perf_event_bpf_output",
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{
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"metrics": [
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"type": "ssvc",
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"content": {
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"id": "CVE-2023-53065",
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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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"version": "2.0.3",
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"timestamp": "2026-10-15T21:33:16.858406Z"
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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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"dateUpdated": "2026-10-15T21:41:25.473Z"
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}
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} |