221 lines
11 KiB
JSON
221 lines
11 KiB
JSON
{
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"cveId": "CVE-2023-52827",
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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": "2024-05-21T15:19:24.251Z",
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"datePublished": "2024-05-21T15:31:30.837Z",
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"dateUpdated": "2026-08-05T09:11:34.320Z"
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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\nwifi: ath12k: fix possible out-of-bound read in ath12k_htt_pull_ppdu_stats()\n\nlen is extracted from HTT message and could be an unexpected value in\ncase errors happen, so add validation before using to avoid possible\nout-of-bound read in the following message iteration and parsing.\n\nThe same issue also applies to ppdu_info->ppdu_stats.common.num_users,\nso validate it before using too.\n\nThese are found during code review.\n\nCompile test only."
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{
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"baseScore": 7.7,
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"baseSeverity": "HIGH"
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},
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{
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"lang": "en",
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"value": "AV:L - The vulnerable parser consumes a firmware-generated HTT T2H PPDU_STATS_IND delivered over HTC/CE (ath12k_dp_htt_htc_t2h_msg_handler), not over-the-air 802.11 frame contents; this matches the ath12k host-firmware trust-boundary scoring used for CVE-2023-52829.\nAC:L - Firmware fully controls the 16-bit payload_size in the HTT header; once an oversized len is supplied the TLV walk past skb->len is deterministic with no race or uncontrollable memory-layout requirement.\nPR:N - The HTT T2H handler runs automatically on device-delivered messages during normal radio operation with no OS credential, capability, or authentication check on the path, as with other ath12k firmware CE/HTC parsers.\nUI:N - PPDU stats indications are requested at mac start and processed in the driver’s RX completion path without any local user action such as opening a file or changing configuration.\nS:U - The out-of-bounds read and any resulting crash or corrupted driver stats remain inside the host kernel/driver security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - An unbounded out-of-bounds read (claimed len up to 65535 versus ~2KB CE skb) walks adjacent kernel memory and copies TLV payloads into ppdu_info; per guidance OOB reads are Confidentiality High.\nI:N - The live defect is an out-of-bounds read; memcpy destinations in ath12k_htt_tlv_ppdu_stats_parse are fixed-size in-bounds fields, and the num_users OOB-write loops are unreachable because frame_type/tlv_bitmap are never set.\nA:H - Walking tens of kilobytes past the skb into potentially unmapped kernel memory can trigger a kernel oops/panic, which is Availability High."
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}
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]
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}
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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/wireless/ath/ath12k/dp_rx.c"
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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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