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{}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:openbsd:openssh:*:*:*:*:*:*:*:*", "matchCriteriaId": "B5D52975-3CB0-4BF7-975F-66EF9BF42A06", "versionEndIncluding": "7.3", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "authfile.c in sshd in OpenSSH before 7.4 does not properly consider the effects of realloc on buffer contents, which might allow local users to obtain sensitive private-key information by leveraging access to a privilege-separated child process."}, {"lang": "es", "value": "authfile.c en sshd en OpenSSH en versiones anteriores a 7.4 no considera apropiadamente los efectos de realloc en el contenido de b\u00fafer, lo que podr\u00eda permitir a usuarios locales obtener informaci\u00f3n sensible de clave privada aprovechando el acceso a un subproceso separado de privilegios."}], "id": "CVE-2016-10011", "lastModified": "2025-04-12T10:46:40.837", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "LOW", "cvssData": {"accessComplexity": "LOW", "accessVector": "LOCAL", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 2.1, "confidentialityImpact": "PARTIAL", "integrityImpact": "NONE", "vectorString": "AV:L/AC:L/Au:N/C:P/I:N/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}], "cvssMetricV30": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "version": "3.0"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2017-01-05T02:59:03.120", "references": [{"source": "cve@mitre.org", "tags": ["Mailing List", "Release Notes"], "url": "http://www.openwall.com/lists/oss-security/2016/12/19/2"}, {"source": "cve@mitre.org", "url": "http://www.securityfocus.com/bid/94977"}, {"source": "cve@mitre.org", "url": "http://www.securitytracker.com/id/1037490"}, {"source": "cve@mitre.org", "url": "http://www.slackware.com/security/viewer.php?l=slackware-security&y=2016&m=slackware-security.647637"}, {"source": "cve@mitre.org", "url": "https://access.redhat.com/errata/RHSA-2017:2029"}, {"source": "cve@mitre.org", "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf"}, {"source": "cve@mitre.org", "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-676336.pdf"}, {"source": "cve@mitre.org", "tags": ["Patch"], "url": "https://github.com/openbsd/src/commit/ac8147a06ed2e2403fb6b9a0c03e618a9333c0e9"}, {"source": "cve@mitre.org", "url": "https://lists.debian.org/debian-lts-announce/2018/09/msg00010.html"}, {"source": "cve@mitre.org", "url": "https://security.netapp.com/advisory/ntap-20171130-0002/"}, {"source": "cve@mitre.org", "url": "https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03818en_us"}, {"source": "cve@mitre.org", "url": "https://www.openssh.com/txt/release-7.4"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Release Notes"], "url": "http://www.openwall.com/lists/oss-security/2016/12/19/2"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.securityfocus.com/bid/94977"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.securitytracker.com/id/1037490"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.slackware.com/security/viewer.php?l=slackware-security&y=2016&m=slackware-security.647637"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": 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"cve@mitre.org", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-320"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"affected_release": [{"advisory": "RHSA-2017:2029", "cpe": "cpe:/o:redhat:enterprise_linux:7", "package": "openssh-0:7.4p1-11.el7", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2017-08-01T00:00:00Z"}], "bugzilla": {"description": "openssh: Leak of host private key material to privilege-separated child process via realloc()", "id": "1406286", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1406286"}, "csaw": false, "cvss": {"cvss_base_score": "1.0", "cvss_scoring_vector": "AV:L/AC:H/Au:S/C:P/I:N/A:N", "status": "verified"}, "cvss3": {"cvss3_base_score": "2.5", "cvss3_scoring_vector": "CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N", "status": "verified"}, "cwe": "CWE-200", "details": ["authfile.c in sshd in OpenSSH before 7.4 does not properly consider the effects of realloc on buffer contents, which might allow local users to obtain sensitive private-key information by leveraging access to a privilege-separated child process.", "It was found that the host private key material could possibly leak to the privilege-separated child processes via re-allocated memory. An attacker able to compromise the privilege-separated process could therefore obtain the leaked key information."], "name": "CVE-2016-10011", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:4", "fix_state": "Will not fix", "package_name": "openssh", "product_name": "Red Hat Enterprise Linux 4"}, {"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Will not fix", "package_name": "openssh", "product_name": "Red Hat Enterprise Linux 5"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Fix deferred", "package_name": "openssh", "product_name": "Red Hat Enterprise Linux 6"}], "public_date": "2016-12-19T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2016-10011\nhttps://nvd.nist.gov/vuln/detail/CVE-2016-10011\nhttps://www.openssh.com/txt/release-7.4"], "statement": "It seems that this flaw is not practically exploitable, the leak of host private key material to the privilege-separated child processes is theoretical. No such leak was observed in practice for normal-sized keys, nor does a leak to the child processes directly expose key material to unprivileged users. Because of the this restriction for successful exploitation, this issue has been rated as having Low security impact. A future update may address this flaw.", "threat_severity": "Low"}