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If the socket was not\nbound, two separate problems would occur:\n\n1) We'd send an pipe enablement request with an invalid source object.\n2) Later socket calls could BUG on the socket unexpectedly being\n connected yet not bound to a valid object."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: phonet/pep: se niega a habilitar una tuber\u00eda independiente. Este ioctl() supone impl\u00edcitamente que el socket ya estaba vinculado a un nombre de socket local v\u00e1lido, es decir, objeto Phonet. Si el socket no estuviera vinculado, se producir\u00edan dos problemas distintos: 1) Enviamos una solicitud de habilitaci\u00f3n de canalizaci\u00f3n con un objeto fuente no v\u00e1lido. 2) Las llamadas de socket posteriores podr\u00edan ERROR en el socket que se conecta inesperadamente pero no est\u00e1 vinculado a un objeto v\u00e1lido."}], "id": "CVE-2021-47086", "lastModified": "2025-01-16T17:13:09.150", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2024-03-04T18:15:07.393", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/0bbdd62ce9d44f3a22059b3d20a0df977d9f6d59"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/311601f114859d586d5ef8833d60d3aa23282161"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/48c76fc53582e7f13c1e0b11c916e503256c4d0b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/52ad5da8e316fa11e3a50b3f089aa63e4089bf52"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/53ccdc73eedaf0e922c45b569b797d2796fbaafa"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/75a2f31520095600f650597c0ac41f48b5ba0068"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/982b6ba1ce626ef87e5c29f26f2401897554f235"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/b10c7d745615a092a50c2e03ce70446d2bec2aca"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/0bbdd62ce9d44f3a22059b3d20a0df977d9f6d59"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/311601f114859d586d5ef8833d60d3aa23282161"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/48c76fc53582e7f13c1e0b11c916e503256c4d0b"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/52ad5da8e316fa11e3a50b3f089aa63e4089bf52"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/53ccdc73eedaf0e922c45b569b797d2796fbaafa"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/75a2f31520095600f650597c0ac41f48b5ba0068"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/982b6ba1ce626ef87e5c29f26f2401897554f235"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/b10c7d745615a092a50c2e03ce70446d2bec2aca"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: phonet/pep: refuse to enable an unbound pipe", "id": "2267939", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2267939"}, "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:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-20", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nphonet/pep: refuse to enable an unbound pipe\nThis ioctl() implicitly assumed that the socket was already bound to\na valid local socket name, i.e. Phonet object. If the socket was not\nbound, two separate problems would occur:\n1) We'd send an pipe enablement request with an invalid source object.\n2) Later socket calls could BUG on the socket unexpectedly being\nconnected yet not bound to a valid object."], "name": "CVE-2021-47086", "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": "2024-03-04T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2021-47086\nhttps://nvd.nist.gov/vuln/detail/CVE-2021-47086\nhttps://lore.kernel.org/linux-cve-announce/2024030455-CVE-2021-47086-cdaa@gregkh/T"], "threat_severity": "Moderate", "upstream_fix": "kernel 4.4.297, kernel 4.9.295, kernel 4.14.260, kernel 4.19.223, kernel 5.4.169, kernel 5.10.89, kernel 5.15.12, kernel 5.16"}