CVE-2013-1956

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{"affected": [{"affectedData": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "secalert@redhat.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "53B3256C-E89F-417D-8852-98994504C2A4", "versionEndIncluding": "3.8.5", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:3.8.0:*:*:*:*:*:*:*", "matchCriteriaId": "1A6E41FB-38CE-49F2-B796-9A5AA648E73F", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:3.8.1:*:*:*:*:*:*:*", "matchCriteriaId": "93523FE1-5993-46CB-9299-7C8C1A04E873", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:3.8.2:*:*:*:*:*:*:*", "matchCriteriaId": "27ADC356-6BE9-43A3-9E0B-393DC4B1559A", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:3.8.3:*:*:*:*:*:*:*", "matchCriteriaId": "4F543D23-1774-4D14-A7D1-AD49EDEA94DD", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:3.8.4:*:*:*:*:*:*:*", "matchCriteriaId": "FC323F58-CA00-4C3C-BA4D-CC2C0A6E5F43", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "The create_user_ns function in kernel/user_namespace.c in the Linux kernel before 3.8.6 does not check whether a chroot directory exists that differs from the namespace root directory, which allows local users to bypass intended filesystem restrictions via a crafted clone system call."}, {"lang": "es", "value": "La funci\u00f3n create_user_ns en kernel/user_namespace.c en el kernel Linux antes de v3.8.6 no comprueba si existe un directorio de chroot que difiere del directorio ra\u00edz de espacio de nombres, que permite a los usuarios locales para eludir las restricciones del sistema de archivos destinados a trav\u00e9s de una llamada al sistema clone dise\u00f1ado."}], "id": "CVE-2013-1956", "lastModified": "2026-06-16T23:52:28.290", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "LOW", "cvssData": {"accessComplexity": "LOW", "accessVector": "LOCAL", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 2.1, "confidentialityImpact": "NONE", "integrityImpact": "PARTIAL", "vectorString": "AV:L/AC:L/Au:N/C:N/I:P/A:N", "version": "2.0"}, "exploitabilityScore": 3.9, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}]}, "published": "2013-04-24T19:55:01.003", "references": [{"source": "secalert@redhat.com", "url": "http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=3151527ee007b73a0ebd296010f1c0454a919c7d"}, {"source": "secalert@redhat.com", "url": "http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.8.6"}, {"source": "secalert@redhat.com", "url": "http://www.openwall.com/lists/oss-security/2013/04/16/11"}, {"source": "secalert@redhat.com", "url": "https://github.com/torvalds/linux/commit/3151527ee007b73a0ebd296010f1c0454a919c7d"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=3151527ee007b73a0ebd296010f1c0454a919c7d"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.8.6"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.openwall.com/lists/oss-security/2013/04/16/11"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://github.com/torvalds/linux/commit/3151527ee007b73a0ebd296010f1c0454a919c7d"}], "sourceIdentifier": "secalert@redhat.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-264"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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