CVE-2023-52768

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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 \u2192 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\u2011Fi/network protocol input.\nAC:L - Queuing \u226517 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 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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/net/wireless/microchip/wilc1000/wlan.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "541b3757fd443a68ed8d25968eae511a8275e7c8", "status": "affected", "version": "32dd0b22a5ba1dd296ccf2caf46ad44c3a8d5d98", "versionType": "git"}, {"lessThan": "4b0d6ddb6466d10df878a7787f175a0e4adc3e27", "status": "affected", "version": "40b717bfcefab28a0656b8caa5e43d5449e5a671", "versionType": "git"}, {"lessThan": "6aaf7cd8bdfe245d3c9a8b48fe70c2011965948e", "status": "affected", "version": "40b717bfcefab28a0656b8caa5e43d5449e5a671", "versionType": "git"}, {"lessThan": "3ce1c2c3999b232258f7aabab311d47dda75605c", "status": "affected", "version": "40b717bfcefab28a0656b8caa5e43d5449e5a671", "versionType": "git"}, {"lessThan": "05ac1a198a63ad66bf5ae8b7321407c102d40ef3", "status": "affected", "version": "40b717bfcefab28a0656b8caa5e43d5449e5a671", "versionType": "git"}, {"status": "affected", "version": "5212d958f6518003cd98c9886f8e8aedcfc25741", "versionType": "git"}, {"lessThan": "5.15.140", "status": "affected", "version": "5.15.68", "versionType": "semver"}, {"lessThan": "5.20", "status": "affected", "version": "5.19.9", "versionType": "semver"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/net/wireless/microchip/wilc1000/wlan.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.0"}, {"lessThan": "6.0", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.140", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.64", "versionType": "semver"}, {"lessThanOrEqual": "6.5.*", "status": "unaffected", "version": "6.5.13", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.3", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "6.7", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "D0A7D491-076F-47B7-95AE-A448DB9CA725", "versionEndExcluding": "5.15.140", "versionStartIncluding": "5.15.68", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "AC36B304-B2D3-43DD-A07D-2566927F8CE4", "versionEndExcluding": "6.1.64", "versionStartIncluding": "5.19.9", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "674C4F82-C336-4B49-BF64-1DE422E889C4", "versionEndExcluding": "6.5.13", "versionStartIncluding": "6.2", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "B58252FA-A49C-411F-9B28-DC5FE44BC5A0", "versionEndExcluding": "6.6.3", "versionStartIncluding": "6.6", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "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)"}, {"lang": "es", "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: wifi: wilc1000: use vmm_table como matriz en wilc struct. Al habilitar KASAN y ejecutar algunas pruebas de iperf se generan algunos problemas de memoria con vmm_table: BUG: KASAN: slab-out-of-bounds en wilc_wlan_handle_txq +0x6ac/0xdb4 Escritura de tama\u00f1o 4 en la direcci\u00f3n c3a61540 mediante la tarea wlan0-tx/95 KASAN detecta que estamos escribiendo datos m\u00e1s all\u00e1 del rango asignado a vmm_table. De hecho, existe una discrepancia entre el tama\u00f1o pasado al asignador en wilc_wlan_init y el rango de posibles \u00edndices utilizados m\u00e1s adelante: al tama\u00f1o de la asignaci\u00f3n le falta una multiplicaci\u00f3n por sizeof(u32)"}], "id": "CVE-2023-52768", "lastModified": "2026-08-04T10:18:40.623", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.6, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "HIGH", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:H", "version": "3.1"}, "exploitabilityScore": 0.8, "impactScore": 4.7, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2023-52768", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2024-05-29T18:50:15.574062Z", "version": "2.0.3"}}]}, "published": "2024-05-21T16:15:15.983", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/05ac1a198a63ad66bf5ae8b7321407c102d40ef3"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/3ce1c2c3999b232258f7aabab311d47dda75605c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/4b0d6ddb6466d10df878a7787f175a0e4adc3e27"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/541b3757fd443a68ed8d25968eae511a8275e7c8"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/6aaf7cd8bdfe245d3c9a8b48fe70c2011965948e"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/05ac1a198a63ad66bf5ae8b7321407c102d40ef3"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/3ce1c2c3999b232258f7aabab311d47dda75605c"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/4b0d6ddb6466d10df878a7787f175a0e4adc3e27"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/541b3757fd443a68ed8d25968eae511a8275e7c8"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/6aaf7cd8bdfe245d3c9a8b48fe70c2011965948e"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-129"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: wifi: wilc1000: use vmm_table as array in wilc struct", "id": "2282737", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2282737"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.4", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-125", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nwifi: wilc1000: use vmm_table as array in wilc struct\nEnabling KASAN and running some iperf tests raises some memory issues with\nvmm_table:\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\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)"], "name": "CVE-2023-52768", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-05-21T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2023-52768\nhttps://nvd.nist.gov/vuln/detail/CVE-2023-52768\nhttps://lore.kernel.org/linux-cve-announce/2024052149-CVE-2023-52768-68fc@gregkh/T"], "threat_severity": "Low"}

{}