CVE-2022-3910

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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "packageName": "kernel", "product": "Linux Kernel", "repo": "https://git.kernel.org", "vendor": "Linux", "versions": [{"lessThanOrEqual": "5.19.10", "status": "affected", "version": "5.18.0", "versionType": "custom"}]}], "source": "cve-coordination@google.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "DC7F6228-4E87-46E2-8CD8-A8439BC31E81", "versionEndExcluding": "5.19.11", "versionStartIncluding": "5.18", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.0:rc1:*:*:*:*:*:*", "matchCriteriaId": "E8BD11A3-8643-49B6-BADE-5029A0117325", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.0:rc2:*:*:*:*:*:*", "matchCriteriaId": "5F0AD220-F6A9-4012-8636-155F1B841FAD", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.0:rc3:*:*:*:*:*:*", "matchCriteriaId": "A46498B3-78E1-4623-AAE1-94D29A42BE4E", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.0:rc4:*:*:*:*:*:*", "matchCriteriaId": "F8446E87-F5F6-41CA-8201-BAE0F0CA6DD9", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.0:rc5:*:*:*:*:*:*", "matchCriteriaId": "8E5FB72F-67CE-43CC-83FE-541604D98182", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Use After Free vulnerability in Linux Kernel allows Privilege Escalation. An improper Update of Reference Count in io_uring leads to Use-After-Free and Local Privilege Escalation.\nWhen io_msg_ring was invoked with a fixed file, it called io_fput_file() which improperly decreased its reference count (leading to Use-After-Free and Local Privilege Escalation). Fixed files are permanently registered to the ring, and should not be put separately.\n\nWe recommend upgrading past commit https://github.com/torvalds/linux/commit/fc7222c3a9f56271fba02aabbfbae999042f1679 https://github.com/torvalds/linux/commit/fc7222c3a9f56271fba02aabbfbae999042f1679 \n"}, {"lang": "es", "value": "La vulnerabilidad de Use After Free en el kernel de Linux permite la escalada de privilegios. Una actualizaci\u00f3n incorrecta del recuento de referencias en io_uring conduce a un use-after-free y escalada de privilegios locales. Cuando se invoc\u00f3 io_msg_ring con un archivo fijo, llam\u00f3 a io_fput_file(), lo que disminuy\u00f3 incorrectamente su recuento de referencias (lo que llev\u00f3 a Use-After-Free y Escalada de privilegios locales). Los archivos fijos est\u00e1n registrados permanentemente en el anillo y no deben colocarse por separado. Recomendamos actualizar el commit anteriorhttps://github.com/torvalds/linux/commit/fc7222c3a9f56271fba02aabbfbae999042f1679 https://github.com/torvalds/linux/commit/fc7222c3a9f56271fba02aabbfbae999042f1679 "}], "id": "CVE-2022-3910", "lastModified": "2026-06-17T05:00:33.730", "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": "cve-coordination@google.com", "type": "Secondary"}, {"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": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2022-3910", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2025-04-21T13:37:05.356078Z", "version": "2.0.3"}}]}, "published": "2022-11-22T13:15:13.167", "references": [{"source": "cve-coordination@google.com", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/torvalds/linux/commit/fc7222c3a9f56271fba02aabbfbae999042f1679"}, {"source": "cve-coordination@google.com", "tags": ["Patch", "Third Party Advisory"], "url": "https://kernel.dance/#fc7222c3a9f56271fba02aabbfbae999042f1679"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/torvalds/linux/commit/fc7222c3a9f56271fba02aabbfbae999042f1679"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Third Party Advisory"], "url": "https://kernel.dance/#fc7222c3a9f56271fba02aabbfbae999042f1679"}], "sourceIdentifier": "cve-coordination@google.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-416"}], "source": "cve-coordination@google.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "NVD-CWE-Other"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: Improper update of reference count in io_uring leads to use-after-free", "id": "2144960", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2144960"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.0", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-911->CWE-416", "details": ["Use After Free vulnerability in Linux Kernel allows Privilege Escalation. An improper Update of Reference Count in io_uring leads to Use-After-Free and Local Privilege Escalation.\nWhen io_msg_ring was invoked with a fixed file, it called io_fput_file() which improperly decreased its reference count (leading to Use-After-Free and Local Privilege Escalation). Fixed files are permanently registered to the ring, and should not be put separately.\nWe recommend upgrading past commit https://github.com/torvalds/linux/commit/fc7222c3a9f56271fba02aabbfbae999042f1679 https://github.com/torvalds/linux/commit/fc7222c3a9f56271fba02aabbfbae999042f1679", "A use-after-free flaw was found in the io_uring subsystem of the Linux kernel. When io_msg_ring was invoked with a fixed file, it called io_fput_file() which improperly decreased its reference count. This could allow a local user to crash the system or escalate their privileges on the system."], "name": "CVE-2022-3910", "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": "2022-09-15T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-3910\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-3910"], "statement": "Red Hat Enterprise Linux is not affected by this flaw as io_uring (CONFIG_IO_URING) is not enabled in any current shipping kernels.", "threat_severity": "Moderate"}

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