CVE-2026-23318

{"id": "CVE-2026-23318", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.1, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.2, "exploitabilityScore": 1.8}]}, "affected": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "affectedData": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "57f8770620e9b51c61089751f0b5ad3dbe376ff2", "lessThan": "82a7d0a1b88798de1a609130080ce0c65dd869e9", "versionType": "git"}, {"status": "affected", "version": "57f8770620e9b51c61089751f0b5ad3dbe376ff2", "lessThan": "8307d93e63d5f54ef10412d4db2dd551e920dee4", "versionType": "git"}, {"status": "affected", "version": "57f8770620e9b51c61089751f0b5ad3dbe376ff2", "lessThan": "0dcd1ed96c03459cf14706885c9dd3c1fd8bd29f", "versionType": "git"}, {"status": "affected", "version": "57f8770620e9b51c61089751f0b5ad3dbe376ff2", "lessThan": "a0c6ae2ea84528f198bf7fd0117f12fd0cf6d7cc", "versionType": "git"}, {"status": "affected", "version": "57f8770620e9b51c61089751f0b5ad3dbe376ff2", "lessThan": "d3904ca40515272681ae61ad6f561c24f190957f", "versionType": "git"}, {"status": "affected", "version": "57f8770620e9b51c61089751f0b5ad3dbe376ff2", "lessThan": "1e5753ff4c2e86aa88516f97a224c90a3d0b133e", "versionType": "git"}, {"status": "affected", "version": "57f8770620e9b51c61089751f0b5ad3dbe376ff2", "lessThan": "499ffd15b00dc91ac95c28f76959dfb5cdcc84d5", "versionType": "git"}, {"status": "affected", "version": "57f8770620e9b51c61089751f0b5ad3dbe376ff2", "lessThan": "54f9d645a5453d0bfece0c465d34aaf072ea99fa", "versionType": "git"}, {"status": "affected", "version": "17821e2fb16752f5d363fb5c3f8aab4df41b9bcc", "versionType": "git"}, {"status": "affected", "version": "bf74a46aebb1b5ab5e5f25bafa4ae0a453ba813a", "versionType": "git"}, {"status": "affected", "version": "4.19.84", "lessThan": "4.20", "versionType": "semver"}, {"status": "affected", "version": "5.3.11", "lessThan": "5.4", "versionType": "semver"}], "programFiles": ["sound/usb/validate.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "5.4"}, {"status": "unaffected", "version": "0", "lessThan": "5.4", "versionType": "semver"}, {"status": "unaffected", "version": "5.10.253", "versionType": "semver", "lessThanOrEqual": "5.10.*"}, {"status": "unaffected", "version": "5.15.203", "versionType": "semver", "lessThanOrEqual": "5.15.*"}, {"status": "unaffected", "version": "6.1.167", "versionType": "semver", "lessThanOrEqual": "6.1.*"}, {"status": "unaffected", "version": "6.6.130", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.12.77", "versionType": "semver", "lessThanOrEqual": "6.12.*"}, {"status": "unaffected", "version": "6.18.17", "versionType": "semver", "lessThanOrEqual": "6.18.*"}, {"status": "unaffected", "version": "6.19.7", "versionType": "semver", "lessThanOrEqual": "6.19.*"}, {"status": "unaffected", "version": "7.0", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["sound/usb/validate.c"], "defaultStatus": "affected"}]}], "published": "2026-03-25T11:16:28.390", "references": [{"url": "https://git.kernel.org/stable/c/0dcd1ed96c03459cf14706885c9dd3c1fd8bd29f", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/1e5753ff4c2e86aa88516f97a224c90a3d0b133e", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/499ffd15b00dc91ac95c28f76959dfb5cdcc84d5", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/54f9d645a5453d0bfece0c465d34aaf072ea99fa", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/82a7d0a1b88798de1a609130080ce0c65dd869e9", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/8307d93e63d5f54ef10412d4db2dd551e920dee4", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/a0c6ae2ea84528f198bf7fd0117f12fd0cf6d7cc", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/d3904ca40515272681ae61ad6f561c24f190957f", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-125"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: usb-audio: Use correct version for UAC3 header validation\n\nThe entry of the validators table for UAC3 AC header descriptor is\ndefined with the wrong protocol version UAC_VERSION_2, while it should\nhave been UAC_VERSION_3. This results in the validator never matching\nfor actual UAC3 devices (protocol == UAC_VERSION_3), causing their\nheader descriptors to bypass validation entirely. A malicious USB\ndevice presenting a truncated UAC3 header could exploit this to cause\nout-of-bounds reads when the driver later accesses unvalidated\ndescriptor fields.\n\nThe bug was introduced in the same commit as the recently fixed UAC3\nfeature unit sub-type typo, and appears to be from the same copy-paste\nerror when the UAC3 section was created from the UAC2 section."}, {"lang": "es", "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nALSA: usb-audio: Usar la versi\u00f3n correcta para la validaci\u00f3n del encabezado UAC3\n\nLa entrada de la tabla de validadores para el descriptor de encabezado AC UAC3 est\u00e1 definida con la versi\u00f3n de protocolo incorrecta UAC_VERSION_2, mientras que deber\u00eda haber sido UAC_VERSION_3. Esto resulta en que el validador nunca coincida para dispositivos UAC3 reales (protocolo == UAC_VERSION_3), haciendo que sus descriptores de encabezado omitan la validaci\u00f3n por completo. Un dispositivo USB malicioso que presente un encabezado UAC3 truncado podr\u00eda explotar esto para causar lecturas fuera de l\u00edmites cuando el controlador acceda posteriormente a campos de descriptor no validados.\n\nEl error fue introducido en el mismo commit que el error tipogr\u00e1fico del subtipo de unidad de caracter\u00edstica UAC3 recientemente corregido, y parece provenir del mismo error de copiar y pegar cuando la secci\u00f3n UAC3 fue creada a partir de la secci\u00f3n UAC2."}], "lastModified": "2026-06-17T10:21:19.180", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B7EACEB9-7173-47F4-83A4-AE06CE74D78B", "versionEndExcluding": "4.20", "versionStartIncluding": "4.19.84"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "2C477253-CAE4-47C3-A62D-F5EC4455A1CD", "versionEndExcluding": "5.4", "versionStartIncluding": "5.3.11"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "5CE4B3A5-1831-420D-B001-512B8103441C", "versionEndExcluding": "5.10.253", "versionStartIncluding": "5.4.1"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "20DDB3E9-AABF-4107-ADB0-5362AA067045", "versionEndExcluding": "5.15.203", "versionStartIncluding": "5.11"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "2EDC6BAF-B710-4E26-B6AA-D68922EE7B43", "versionEndExcluding": "6.1.167", "versionStartIncluding": "5.16"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C57BB918-DF28-46B3-94F7-144176841267", "versionEndExcluding": "6.6.130", "versionStartIncluding": "6.2"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B3D12E00-E42D-4056-B354-BAD4903C03A5", "versionEndExcluding": "6.12.77", "versionStartIncluding": "6.7"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A5E006E4-59C7-43C1-9231-62A72219F2BA", "versionEndExcluding": "6.18.17", "versionStartIncluding": "6.13"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "69245D10-0B71-485E-80C3-A64F077004D3", "versionEndExcluding": "6.19.7", "versionStartIncluding": "6.19"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.4:-:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "4D70AB13-37BE-4BD3-A652-10191F1642E4"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F253B622-8837-4245-BCE5-A7BF8FC76A16"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.0:rc2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "4AE85AD8-4641-4E7C-A2F4-305E2CD9EE64"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.0:rc3:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F666C8D8-6538-46D4-B318-87610DE64C34"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.0:rc4:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "02259FDA-961B-47BC-AE7F-93D7EC6E90C2"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.0:rc5:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "58A9FEFF-C040-420D-8F0A-BFDAAA1DF258"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.0:rc6:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "1D2315C0-D46F-4F85-9754-F9E5E11374A6"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.0:rc7:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "512EE3A8-A590-4501-9A94-5D4B268D6138"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}