{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2023-52827","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2024-05-21T15:19:24.251Z","datePublished":"2024-05-21T15:31:30.837Z","dateUpdated":"2026-08-05T09:11:34.320Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-08-05T09:11:34.320Z"},"descriptions":[{"lang":"en","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."}],"metrics":[{"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","baseScore":7.7,"baseSeverity":"HIGH"},"scenarios":[{"lang":"en","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."}]}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wireless/ath/ath12k/dp_rx.c"],"versions":[{"version":"d889913205cf7ebda905b1e62c5867ed4e39f6c2","lessThan":"79527c21a3ce04cffc35ea54f74ee087e532be57","status":"affected","versionType":"git"},{"version":"d889913205cf7ebda905b1e62c5867ed4e39f6c2","lessThan":"c9e44111da221246efb2e623ae1be40a5cf6542c","status":"affected","versionType":"git"},{"version":"d889913205cf7ebda905b1e62c5867ed4e39f6c2","lessThan":"1bc44a505a229bb1dd4957e11aa594edeea3690e","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wireless/ath/ath12k/dp_rx.c"],"versions":[{"version":"6.3","status":"affected"},{"version":"0","lessThan":"6.3","status":"unaffected","versionType":"semver"},{"version":"6.5.13","lessThanOrEqual":"6.5.*","status":"unaffected","versionType":"semver"},{"version":"6.6.3","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.7","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.3","versionEndExcluding":"6.5.13"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.3","versionEndExcluding":"6.6.3"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.3","versionEndExcluding":"6.7"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/79527c21a3ce04cffc35ea54f74ee087e532be57"},{"url":"https://git.kernel.org/stable/c/c9e44111da221246efb2e623ae1be40a5cf6542c"},{"url":"https://git.kernel.org/stable/c/1bc44a505a229bb1dd4957e11aa594edeea3690e"}],"title":"wifi: ath12k: fix possible out-of-bound read in ath12k_htt_pull_ppdu_stats()","x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2023-52827","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2024-05-22T18:23:07.677346Z"}}}],"providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2024-06-04T17:22:45.297Z"}},{"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2024-08-02T23:11:36.061Z"},"title":"CVE Program Container","references":[{"url":"https://git.kernel.org/stable/c/79527c21a3ce04cffc35ea54f74ee087e532be57","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/c9e44111da221246efb2e623ae1be40a5cf6542c","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/1bc44a505a229bb1dd4957e11aa594edeea3690e","tags":["x_transferred"]}]}]}}