214 lines
11 KiB
JSON
214 lines
11 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-2024-49862",
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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": "2024-10-21T12:17:06.017Z",
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"datePublished": "2024-10-21T12:27:19.981Z",
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"dateUpdated": "2026-08-05T11:40:11.029Z"
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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": "2026-08-05T11:40:11.029Z"
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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\npowercap: intel_rapl: Fix off by one in get_rpi()\n\nThe rp->priv->rpi array is either rpi_msr or rpi_tpmi which have\nNR_RAPL_PRIMITIVES number of elements. Thus the > needs to be >=\nto prevent an off by one access."
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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:N/A:H",
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"baseScore": 7.1,
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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 - intel_rapl is an x86 power-capping driver exposed solely through the local powercap sysfs class (/sys/class/powercap/intel-rapl:*) and in-kernel perf/PMU callbacks; there is no network or remote-peer input path.\nAC:L - The code path is entered by a simple, deterministic sysfs read with no race, no timing window, and no memory-layout dependency the attacker must first arrange.\nPR:L - The constraint_N_* attributes reaching get_rpi() are created 0644 (S_IWUSR|S_IRUGO) in seed_constraint_attributes(), so any unprivileged local user can drive get_current_power_limit() → rapl_read_pl_data() → get_rpi(); only the write side needs root.\nUI:N - Reading a sysfs file is fully attacker-driven; no victim action, mount, or file open by another user is needed.\nS:U - Both the faulty bounds check and any resulting memory access stay entirely within the kernel's own security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - The off-by-one yields an out-of-bounds read of a full struct rapl_primitive_info past rpi_msr/rpi_tpmi, whose unvalidated ->id then indexes rd->regs[] out of bounds and produces a register handle that is read and returned to userspace through world-readable sysfs — an unbounded disclosure chain, not a few-byte bounded read.\nI:N - The unprivileged-reachable path is read-only; rapl_read_data_raw() writes nothing to kernel memory, and the only OOB-influenced register write lives behind root-only sysfs store handlers.\nA:H - An out-of-range rpi->id feeding rd->regs[] can yield a garbage MMIO handle that tpmi_rapl_read_raw() dereferences with a bare readq() behind only a NULL check, producing an oops and kernel crash."
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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/powercap/intel_rapl_common.c"
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],
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"versions": [
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{
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"version": "98ff639a7289067247b3ef9dd5d1e922361e7365",
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"lessThan": "288cbc505e2046638c615c36357cb78bc9fee1e0",
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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": "98ff639a7289067247b3ef9dd5d1e922361e7365",
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"lessThan": "851e7f7f14a15f4e47b7d0f70d5c4a2b95b824d6",
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"status": "affected",
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},
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"lessThan": "6a34f3b0d7f11fb6ed72da315fd2360abd9c0737",
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"lessThan": "95f6580352a7225e619551febb83595bcb77ab17",
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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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"drivers/powercap/intel_rapl_common.c"
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],
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"versions": [
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{
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"version": "6.5",
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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": "6.5",
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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": "6.6.54",
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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": "6.10.13",
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"lessThanOrEqual": "6.10.*",
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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": "6.11.2",
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"lessThanOrEqual": "6.11.*",
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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",
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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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"nodes": [
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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.5",
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"versionEndExcluding": "6.6.54"
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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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}
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]
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}
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],
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/288cbc505e2046638c615c36357cb78bc9fee1e0"
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},
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{
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"url": "https://git.kernel.org/stable/c/851e7f7f14a15f4e47b7d0f70d5c4a2b95b824d6"
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},
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{
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"url": "https://git.kernel.org/stable/c/6a34f3b0d7f11fb6ed72da315fd2360abd9c0737"
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},
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{
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"url": "https://git.kernel.org/stable/c/95f6580352a7225e619551febb83595bcb77ab17"
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}
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],
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"title": "powercap: intel_rapl: Fix off by one in get_rpi()",
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"x_generator": {
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"engine": "bippy-1.2.0"
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{
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"type": "ssvc",
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"content": {
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"timestamp": "2024-10-21T12:54:50.217091Z",
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"id": "CVE-2024-49862",
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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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"role": "CISA Coordinator",
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}
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"title": "CISA ADP Vulnrichment",
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"shortName": "CISA-ADP",
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"dateUpdated": "2024-10-21T12:55:35.960Z"
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} |