CVE-2017-7558

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{"affected": [{"affectedData": [{"product": "kernel", "vendor": "Linux", "versions": [{"status": "affected", "version": "4.7-rc1 through 4.13"}]}], "source": "secalert@redhat.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "0089AC9A-CBAA-4489-A0D9-FCA4F78CC3AF", "versionEndIncluding": "4.13", "versionStartIncluding": "4.7", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:4.7:rc1:*:*:*:*:*:*", "matchCriteriaId": "49A670AB-795C-429C-9F52-0794799C230C", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:4.7:rc2:*:*:*:*:*:*", "matchCriteriaId": "FB7866D3-A8CE-42A1-A3E1-783DA7F3DB4E", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:4.7:rc3:*:*:*:*:*:*", "matchCriteriaId": "4940B9A0-CF62-4B5F-9E69-91C1594B2107", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:4.7:rc4:*:*:*:*:*:*", "matchCriteriaId": "DA6F4E31-42D4-4DAA-B9D8-0514F11AE778", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:4.7:rc5:*:*:*:*:*:*", "matchCriteriaId": "8DEB1797-95E0-4344-91B3-8C3AEE42BDB8", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:4.7:rc6:*:*:*:*:*:*", "matchCriteriaId": "B3E4C538-05B3-47AA-8464-087549C0D8F9", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:4.7:rc7:*:*:*:*:*:*", "matchCriteriaId": "45FA346F-1039-4607-871B-B9F236A30C16", "vulnerable": true}], "negate": false, "operator": "OR"}]}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*", "matchCriteriaId": "C11E6FB0-C8C0-4527-9AA0-CB9B316F8F43", "vulnerable": true}, {"criteria": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*", "matchCriteriaId": "DEECE5FC-CACF-4496-A3E7-164736409252", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A kernel data leak due to an out-of-bound read was found in the Linux kernel in inet_diag_msg_sctp{,l}addr_fill() and sctp_get_sctp_info() functions present since version 4.7-rc1 through version 4.13. A data leak happens when these functions fill in sockaddr data structures used to export socket's diagnostic information. As a result, up to 100 bytes of the slab data could be leaked to a userspace."}, {"lang": "es", "value": "Se ha encontrado una fuga de datos del kernel debido a una lectura fuera de l\u00edmites en el kernel de Linux en las funciones inet_diag_msg_sctp{,l}addr_fill() y sctp_get_sctp_info() presentes desde la versi\u00f3n 4.7-rc1 hasta la versi\u00f3n 4.13. Ocurre una fuga de datos cuando estas funciones rellenan las estructuras de datos sockaddr utilizadas para exportar la informaci\u00f3n de diagn\u00f3stico del socket. Como resultado, se pod\u00edan filtrar hasta 100 bytes de los datos de la slab a un espacio de usuario."}], "id": "CVE-2017-7558", "lastModified": "2026-06-17T01:24:36.457", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 5.0, "confidentialityImpact": "PARTIAL", "integrityImpact": "NONE", "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV30": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 5.1, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N", "version": "3.0"}, "exploitabilityScore": 1.4, "impactScore": 3.6, "source": "secalert@redhat.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "version": "3.0"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2018-07-26T15:29:00.357", "references": [{"source": "secalert@redhat.com", "tags": ["Mailing List", "Third Party Advisory"], "url": "http://seclists.org/oss-sec/2017/q3/338"}, {"source": "secalert@redhat.com", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://www.securityfocus.com/bid/100466"}, {"source": "secalert@redhat.com", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://www.securitytracker.com/id/1039221"}, {"source": "secalert@redhat.com", "tags": ["Third Party Advisory"], "url": "https://access.redhat.com/errata/RHSA-2017:2918"}, {"source": "secalert@redhat.com", "tags": ["Third Party Advisory"], "url": "https://access.redhat.com/errata/RHSA-2017:2930"}, {"source": "secalert@redhat.com", "tags": ["Third Party Advisory"], "url": "https://access.redhat.com/errata/RHSA-2017:2931"}, {"source": "secalert@redhat.com", "tags": ["Issue Tracking", "Third Party Advisory"], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-7558"}, {"source": "secalert@redhat.com", "tags": ["Patch", "Third Party Advisory"], "url": "https://marc.info/?l=linux-netdev&m=150348777122761&w=2"}, {"source": "secalert@redhat.com", "tags": ["Third Party Advisory"], "url": "https://www.debian.org/security/2017/dsa-3981"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Third Party Advisory"], "url": "http://seclists.org/oss-sec/2017/q3/338"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://www.securityfocus.com/bid/100466"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://www.securitytracker.com/id/1039221"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://access.redhat.com/errata/RHSA-2017:2918"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://access.redhat.com/errata/RHSA-2017:2930"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://access.redhat.com/errata/RHSA-2017:2931"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Issue Tracking", "Third Party Advisory"], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-7558"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Third Party Advisory"], "url": "https://marc.info/?l=linux-netdev&m=150348777122761&w=2"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://www.debian.org/security/2017/dsa-3981"}], "sourceIdentifier": "secalert@redhat.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-125"}], "source": "secalert@redhat.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-125"}], "source": "nvd@nist.gov", "type": "Secondary"}]}

{"acknowledgement": "This issue was discovered by Stefano Brivio (Red Hat).", "affected_release": [{"advisory": "RHSA-2017:2931", "cpe": "cpe:/a:redhat:rhel_extras_rt:7", "package": "kernel-rt-0:3.10.0-693.5.2.rt56.626.el7", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2017-10-19T00:00:00Z"}, {"advisory": "RHSA-2017:2930", "cpe": "cpe:/o:redhat:enterprise_linux:7", "package": "kernel-0:3.10.0-693.5.2.el7", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2017-10-19T00:00:00Z"}, {"advisory": "RHSA-2017:2918", "cpe": "cpe:/a:redhat:enterprise_mrg:2:server:el6", "package": "kernel-rt-1:3.10.0-693.5.2.rt56.592.el6rt", "product_name": "Red Hat Enterprise MRG 2", "release_date": "2017-10-19T00:00:00Z"}], "bugzilla": {"description": "kernel: Out of bounds read in inet_diag_msg_sctp{,l}addr_fill() and sctp_get_sctp_info() in SCTP stack", "id": "1480266", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1480266"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.1", "cvss3_scoring_vector": "CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N", "status": "verified"}, "cwe": "CWE-125", "details": ["A kernel data leak due to an out-of-bound read was found in the Linux kernel in inet_diag_msg_sctp{,l}addr_fill() and sctp_get_sctp_info() functions present since version 4.7-rc1 through version 4.13. A data leak happens when these functions fill in sockaddr data structures used to export socket's diagnostic information. As a result, up to 100 bytes of the slab data could be leaked to a userspace.", "A kernel data leak due to an out-of-bound read was found in the Linux kernel in inet_diag_msg_sctp{,l}addr_fill() and sctp_get_sctp_info() functions present since version 4.7-rc1 through version 4.13. A data leak happens when these functions fill in sockaddr data structures used to export socket's diagnostic information. As a result, up to 100 bytes of the slab data could be leaked to a userspace."], "name": "CVE-2017-7558", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 5"}, {"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-alt", "product_name": "Red Hat Enterprise Linux 7"}], "public_date": "2017-08-23T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2017-7558\nhttps://nvd.nist.gov/vuln/detail/CVE-2017-7558"], "statement": "This issue does not affect Red Hat Enterprise Linux 5 and 6 as the code with the flaw is not present in the products listed.\nThis issue affects Red Hat Enterprise Linux 7 and Red Hat Enterprise MRG 2. Future updates for the respective releases may address this issue.", "threat_severity": "Moderate"}

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