194 lines
9.6 KiB
JSON
194 lines
9.6 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-2023-52790",
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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": "2024-05-21T15:19:24.241Z",
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"datePublished": "2024-05-21T15:31:06.319Z",
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"dateUpdated": "2026-08-05T09:11:25.655Z"
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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": "2026-08-05T09:11:25.655Z"
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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\nswiotlb: fix out-of-bounds TLB allocations with CONFIG_SWIOTLB_DYNAMIC\n\nLimit the free list length to the size of the IO TLB. Transient pool can be\nsmaller than IO_TLB_SEGSIZE, but the free list is initialized with the\nassumption that the total number of slots is a multiple of IO_TLB_SEGSIZE.\nAs a result, swiotlb_area_find_slots() may allocate slots past the end of\na transient IO TLB buffer."
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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:C/C:H/I:H/A:H",
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"baseScore": 8.8,
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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 code is in the kernel DMA/swiotlb allocator, reached when drivers call dma_map/swiotlb_tbl_map_single for I/O (including NIC RX/TX on untrusted PCI devices), which requires local ability to stimulate device DMA rather than a network-bound protocol parser.\nAC:L - Once CONFIG_SWIOTLB_DYNAMIC is enabled and SWIOTLB is under pressure, the reporter showed TCP/IP workloads on an untrusted VF reliably create transient pools and hit the unaligned >=PAGE_SIZE path that overruns the buffer; the attacker can induce that load.\nPR:L - An unprivileged local user can trigger DMA mapping through ordinary network or storage I/O that causes drivers to bounce via swiotlb; no root or CAP_* beyond normal user access is required.\nUI:N - Exploitation does not require a victim to perform any action such as mounting a filesystem or opening a crafted file; generating I/O is sufficient.\nS:C - On the iommu_dma_map_page path for untrusted PCI devices, an overrun bounce address is passed to iommu_map, mapping physical pages outside the SWIOTLB pool into the device IOVA space and bypassing the IOMMU/DMA isolation boundary.\nC:H - Out-of-bounds slot metadata writes and bounce/DMA access past the transient pool expose adjacent kernel or host physical memory, yielding a high-impact disclosure primitive.\nI:H - The bug is a confirmed out-of-bounds write (CWE-787) into slots[] and past the TLB buffer, and device DMA to wrongly IOMMU-mapped pages enables arbitrary modification of adjacent memory and control-flow corruption.\nA:H - Overrunning the transient pool corrupts kernel memory and can crash or hang the system, as seen when the mis-sized bounce buffer is used for DMA and CPU-side bounce/memset."
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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/dma/swiotlb.c"
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],
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"versions": [
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{
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"version": "79636caad3618e2b38457f6e298c9b31ba82b489",
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"lessThan": "ce7612496a4ba6068bc68aa1fa9d947dadb4ad9b",
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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": "79636caad3618e2b38457f6e298c9b31ba82b489",
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"lessThan": "53c87e846e335e3c18044c397cc35178163d7827",
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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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"kernel/dma/swiotlb.c"
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],
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"versions": [
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{
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"version": "6.6",
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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": "6.6",
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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": "6.6.3",
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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": "6.7",
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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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"operator": "OR",
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.6",
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"versionEndExcluding": "6.6.3"
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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": "6.6",
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"references": [
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"url": "https://git.kernel.org/stable/c/ce7612496a4ba6068bc68aa1fa9d947dadb4ad9b"
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},
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{
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"url": "https://git.kernel.org/stable/c/53c87e846e335e3c18044c397cc35178163d7827"
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}
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],
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"title": "swiotlb: fix out-of-bounds TLB allocations with CONFIG_SWIOTLB_DYNAMIC",
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"x_generator": {
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"engine": "bippy-1.2.0"
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"adp": [
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{
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"title": "CISA ADP Vulnrichment",
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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-2023-52790",
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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": "partial"
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}
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],
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"version": "2.0.3",
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"timestamp": "2024-05-22T19:32:04.825201Z"
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"dateUpdated": "2024-06-04T17:23:14.167Z"
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"dateUpdated": "2024-08-02T23:11:36.050Z"
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