{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2023-52768","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2024-05-21T15:19:24.238Z","datePublished":"2024-05-21T15:30:51.656Z","dateUpdated":"2026-08-05T09:11:19.192Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-08-05T09:11:19.192Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: wilc1000: use vmm_table as array in wilc struct\n\nEnabling KASAN and running some iperf tests raises some memory issues with\nvmm_table:\n\nBUG: KASAN: slab-out-of-bounds in wilc_wlan_handle_txq+0x6ac/0xdb4\nWrite of size 4 at addr c3a61540 by task wlan0-tx/95\n\nKASAN detects that we are writing data beyond range allocated to vmm_table.\nThere is indeed a mismatch between the size passed to allocator in\nwilc_wlan_init, and the range of possible indexes used later: allocation\nsize is missing a multiplication by sizeof(u32)"}],"metrics":[{"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","baseScore":7.8,"baseSeverity":"HIGH"},"scenarios":[{"lang":"en","value":"AV:L - The bug is in the local TX batching path (wilc_mac_xmit → wilc_wlan_handle_txq), not in parsing over-the-air frames; an attacker must generate outbound traffic on the wilc1000 netdev rather than inject Wi‑Fi/network protocol input.\nAC:L - Queuing ≥17 TX packets (indices past the 16 u32s that fit in the 64-byte allocation) reliably overflows the slab, as demonstrated by the iperf/KASAN report; the attacker fully controls packet rate and sizes with no race or uncontrollable layout required to trigger the write.\nPR:L - Once the interface is up, any unprivileged local user can send ordinary sockets traffic that hits ndo_start_xmit/wilc_mac_xmit; no CAP_NET_ADMIN or root is required on the vulnerable TX path.\nUI:N - The attacker triggers the overflow solely by transmitting packets themselves; no separate victim action such as mounting a device or opening a crafted file is needed.\nS:U - The slab out-of-bounds write corrupts host kernel heap within the same security authority and does not cross a VM, IOMMU, or sandbox boundary.\nC:H - A ~192-byte heap overflow into adjacent slab objects is memory corruption that can be leveraged for information disclosure (e.g., corrupted lengths/pointers later read), so Confidentiality is High per OOB-write guidance.\nI:H - The out-of-bounds writes of attacker-influenced packet-size fields into adjacent heap objects provide a classic integrity/control-flow hijack primitive for arbitrary kernel write and code execution.\nA:H - Writing past the undersized kmalloc(64) object corrupts adjacent slab memory and can oops/panic the kernel (as KASAN already flags), fully denying availability."}]}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wireless/microchip/wilc1000/wlan.c"],"versions":[{"version":"32dd0b22a5ba1dd296ccf2caf46ad44c3a8d5d98","lessThan":"541b3757fd443a68ed8d25968eae511a8275e7c8","status":"affected","versionType":"git"},{"version":"40b717bfcefab28a0656b8caa5e43d5449e5a671","lessThan":"4b0d6ddb6466d10df878a7787f175a0e4adc3e27","status":"affected","versionType":"git"},{"version":"40b717bfcefab28a0656b8caa5e43d5449e5a671","lessThan":"6aaf7cd8bdfe245d3c9a8b48fe70c2011965948e","status":"affected","versionType":"git"},{"version":"40b717bfcefab28a0656b8caa5e43d5449e5a671","lessThan":"3ce1c2c3999b232258f7aabab311d47dda75605c","status":"affected","versionType":"git"},{"version":"40b717bfcefab28a0656b8caa5e43d5449e5a671","lessThan":"05ac1a198a63ad66bf5ae8b7321407c102d40ef3","status":"affected","versionType":"git"},{"version":"5212d958f6518003cd98c9886f8e8aedcfc25741","status":"affected","versionType":"git"},{"version":"5.15.68","lessThan":"5.15.140","status":"affected","versionType":"semver"},{"version":"5.19.9","lessThan":"5.20","status":"affected","versionType":"semver"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wireless/microchip/wilc1000/wlan.c"],"versions":[{"version":"6.0","status":"affected"},{"version":"0","lessThan":"6.0","status":"unaffected","versionType":"semver"},{"version":"5.15.140","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.64","lessThanOrEqual":"6.1.*","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":"5.15.68","versionEndExcluding":"5.15.140"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.0","versionEndExcluding":"6.1.64"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.0","versionEndExcluding":"6.5.13"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.0","versionEndExcluding":"6.6.3"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.0","versionEndExcluding":"6.7"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.19.9"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/541b3757fd443a68ed8d25968eae511a8275e7c8"},{"url":"https://git.kernel.org/stable/c/4b0d6ddb6466d10df878a7787f175a0e4adc3e27"},{"url":"https://git.kernel.org/stable/c/6aaf7cd8bdfe245d3c9a8b48fe70c2011965948e"},{"url":"https://git.kernel.org/stable/c/3ce1c2c3999b232258f7aabab311d47dda75605c"},{"url":"https://git.kernel.org/stable/c/05ac1a198a63ad66bf5ae8b7321407c102d40ef3"}],"title":"wifi: wilc1000: use vmm_table as array in wilc struct","x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"problemTypes":[{"descriptions":[{"type":"CWE","lang":"en","description":"CWE-noinfo Not enough information"}]}],"metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":5.6,"attackVector":"LOCAL","baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:H","integrityImpact":"LOW","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"HIGH","confidentialityImpact":"LOW"}},{"other":{"type":"ssvc","content":{"timestamp":"2024-05-29T18:50:15.574062Z","id":"CVE-2023-52768","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2024-11-05T17:17:15.027Z"}},{"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2024-08-02T23:11:35.520Z"},"title":"CVE Program Container","references":[{"url":"https://git.kernel.org/stable/c/541b3757fd443a68ed8d25968eae511a8275e7c8","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/4b0d6ddb6466d10df878a7787f175a0e4adc3e27","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/6aaf7cd8bdfe245d3c9a8b48fe70c2011965948e","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/3ce1c2c3999b232258f7aabab311d47dda75605c","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/05ac1a198a63ad66bf5ae8b7321407c102d40ef3","tags":["x_transferred"]}]}]}}