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This can\ncause a use-after-free when a connection is made to the bound socket.\nThe socket returned by accept() also has port VMADDR_PORT_ANY but is not\non the list of unbound sockets. Binding it will result in an extra\nrefcount decrement similar to the one fixed in fcdd2242c023 (vsock: Keep\nthe binding until socket destruction).\n\nModify the check in __vsock_bind_connectible() to also prevent binding\nto VMADDR_PORT_ANY."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: vsock: No permitir la vinculaci\u00f3n a VMADDR_PORT_ANY. Es posible que un vsock se autoenlace a VMADDR_PORT_ANY. Esto puede causar un use-after-free cuando se establece una conexi\u00f3n al socket enlazado. El socket devuelto por accept() tambi\u00e9n tiene el puerto VMADDR_PORT_ANY, pero no est\u00e1 en la lista de sockets no enlazados. Vincularlo resultar\u00e1 en una disminuci\u00f3n adicional del recuento de referencias similar a la corregida en fcdd2242c023 (vsock: Mantener la vinculaci\u00f3n hasta la destrucci\u00f3n del socket). Modifique la comprobaci\u00f3n en __vsock_bind_connectible() para evitar tambi\u00e9n la vinculaci\u00f3n a VMADDR_PORT_ANY."}], "id": "CVE-2025-38618", "lastModified": "2026-01-07T16:56:23.250", "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": "nvd@nist.gov", "type": "Primary"}]}, "published": "2025-08-22T14:15:46.303", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/32950b1907919be86a7a2697d6f93d57068b3865"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/44bd006d5c93f6a8f28b106cbae2428c5d0275b7"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/8f01093646b49f6330bb2d36761983fd829472b1"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/aba0c94f61ec05315fa7815d21aefa4c87f6a9f4"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/c04a2c1ca25b9b23104124d3b2d349d934e302de"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/cf86704798c1b9c46fa59dfc2d662f57d1394d79"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/d1a5b1964cef42727668ac0d8532dae4f8c19386"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/d73960f0cf03ef1dc9e96ec7a20e538accc26d87"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/f138be5d7f301fddad4e65ec66dfc3ceebf79be3"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-416"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: vsock: Do not allow binding to VMADDR_PORT_ANY", "id": "2390316", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2390316"}, "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"}, "details": ["No description is available for this CVE."], "name": "CVE-2025-38618", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"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": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-08-22T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-38618\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-38618\nhttps://lore.kernel.org/linux-cve-announce/2025082213-CVE-2025-38618-1f1a@gregkh/T"], "threat_severity": "Moderate"}

{"created": "2025-08-23T10:55:31.382223+00:00", "updated": "2025-08-23T10:55:31.382277+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}