277 lines
14 KiB
JSON
277 lines
14 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-2023-52834",
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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": "2024-05-21T15:19:24.252Z",
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"datePublished": "2024-05-21T15:31:35.575Z",
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"dateUpdated": "2026-08-05T09:11:36.515Z"
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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": "2026-08-05T09:11:36.515Z"
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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\natl1c: Work around the DMA RX overflow issue\n\nThis is based on alx driver commit 881d0327db37 (\"net: alx: Work around\nthe DMA RX overflow issue\").\n\nThe alx and atl1c drivers had RX overflow error which was why a custom\nallocator was created to avoid certain addresses. The simpler workaround\nthen created for alx driver, but not for atl1c due to lack of tester.\n\nInstead of using a custom allocator, check the allocated skb address and\nuse skb_reserve() to move away from problematic 0x...fc0 address.\n\nTested on AR8131 on Acer 4540."
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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:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
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"baseScore": 7.5,
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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:N - The atl1c RX path programs DMA buffers that are refilled from atl1c_clean_rx after packets arrive on the wired Ethernet NIC; a remote peer can send traffic that drives this refill path on an internet-facing host.\nAC:L - Sustained receive traffic reliably forces RX ring refills, and field reports show the bad 0x...fc0/0x...f80 address condition and resulting RX overflow recur within minutes under load without attacker-controlled timing tricks.\nPR:N - Triggering requires only unauthenticated frames delivered to the NIC RX ring; no local account, capabilities, or protocol authentication gate sits on this path.\nUI:N - No victim action such as mounting a device or opening a file is required; ordinary inbound network traffic is sufficient.\nS:U - Impact stays within the host kernel/network stack authority as a NIC/link failure, without a documented VM escape or IOMMU isolation bypass.\nC:N - Debugging of the same silicon issue found no overrun of skb payload contents; the failure mode is an RX FIFO overflow that stops receive, not an information-disclosure primitive.\nI:N - The bug produces RXF overflow/link loss and possible device reset rather than an attacker-controlled write to kernel memory or packet data integrity compromise.\nA:H - Once the overflow hits, the interface stops receiving and typically requires module reload or reboot to recover, fully denying network availability on the affected NIC."
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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/net/ethernet/atheros/atl1c/atl1c.h",
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"drivers/net/ethernet/atheros/atl1c/atl1c_main.c"
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],
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"versions": [
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{
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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/net/ethernet/atheros/atl1c/atl1c.h",
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"drivers/net/ethernet/atheros/atl1c/atl1c_main.c"
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],
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"versions": [
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{
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"version": "2.6.29",
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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": "2.6.29",
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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": "5.15.140",
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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": "6.1.64",
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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": "6.5.13",
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"lessThanOrEqual": "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": "6.6.3",
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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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