{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2023-3389", "assignerOrgId": "14ed7db2-1595-443d-9d34-6215bf890778", "state": "PUBLISHED", "assignerShortName": "Google", "dateReserved": "2023-06-23T13:43:00.034Z", "datePublished": "2023-06-28T19:33:55.097Z", "dateUpdated": "2024-08-02T06:55:02.753Z"}, "containers": {"cna": {"affected": [{"defaultStatus": "unaffected", "packageName": "kernel", "product": "Kernel", "repo": "https://git.kernel.org", "vendor": "Linux", "versions": [{"lessThan": "6.4", "status": "affected", "version": "5.13", "versionType": "custom"}, {"lessThan": "5.10.185", "status": "affected", "version": "5.10.162", "versionType": "custom"}]}], "credits": [{"lang": "en", "type": "finder", "user": "00000000-0000-4000-9000-000000000000", "value": "Querijn Voet"}], "datePublic": "2023-06-18T02:21:00.000Z", "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "A use-after-free vulnerability in the Linux Kernel io_uring subsystem can be exploited to achieve local privilege escalation.<br><br><span style=\"background-color: rgb(255, 255, 255);\">Racing a io_uring cancel poll request with a linked timeout can cause a UAF in a hrtimer.</span><br><br>We recommend upgrading past commit ef7dfac51d8ed961b742218f526bd589f3900a59 (4716c73b188566865bdd79c3a6709696a224ac04 for 5.10 stable and&nbsp;0e388fce7aec40992eadee654193cad345d62663 for 5.15 stable).<br><br>"}], "value": "A use-after-free vulnerability in the Linux Kernel io_uring subsystem can be exploited to achieve local privilege escalation.\n\nRacing a io_uring cancel poll request with a linked timeout can cause a UAF in a hrtimer.\n\nWe recommend upgrading past commit ef7dfac51d8ed961b742218f526bd589f3900a59 (4716c73b188566865bdd79c3a6709696a224ac04 for 5.10 stable and\u00a00e388fce7aec40992eadee654193cad345d62663 for 5.15 stable).\n\n"}], "impacts": [{"capecId": "CAPEC-233", "descriptions": [{"lang": "en", "value": "CAPEC-233 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Ejecutar una solicitud de io_uring cancelar sondeo con un tiempo de espera vinculado puede provocar una UAF en un hrtimer. Recomendamos actualizar al commit anterior ef7dfac51d8ed961b742218f526bd589f3900a59 (4716c73b188566865bdd79c3a6709696a224ac04 para 5.10 stable y 0e388fce7aec40992eadee654193cad345d62663 para 5.15 stable)."}], "id": "CVE-2023-3389", "lastModified": "2024-11-21T08:17:09.780", "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": 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{"bugzilla": {"description": "kernel: Racing a io_uring cancel poll request with a linked timeout can cause a UAF in a hrtimer", "id": "2218604", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2218604"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "status": "draft"}, "cwe": "CWE-416", "details": ["A use-after-free vulnerability in the Linux Kernel io_uring subsystem can be exploited to achieve local privilege escalation.\nRacing a io_uring cancel poll request with a linked timeout can cause a UAF in a hrtimer.\nWe recommend upgrading past commit ef7dfac51d8ed961b742218f526bd589f3900a59 (4716c73b188566865bdd79c3a6709696a224ac04 for 5.10 stable and\u00a00e388fce7aec40992eadee654193cad345d62663 for 5.15 stable).", "A use-after-free flaw was found in the Linux kernel\u2019s io_uring functionality. This flaw allows a local user to crash the system."], "name": "CVE-2023-3389", "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": "2023-06-16T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2023-3389\nhttps://nvd.nist.gov/vuln/detail/CVE-2023-3389\nhttps://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-5.10.y&id=4716c73b188566865bdd79c3a6709696a224ac04\nhttps://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-5.15.y&id=0e388fce7aec40992eadee654193cad345d62663"], "statement": "The io_uring disabled before Red Hat Enterprise Linux 9.3, so all versions before 9 are not affected.", "threat_severity": "Moderate"}