CVE-2016-10011

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"state": "PUBLISHED", "cveId": "CVE-2016-10011", "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "dateUpdated": "2026-05-29T20:19:06.040Z", "dateReserved": "2016-12-19T00:00:00.000Z", "datePublished": "2017-01-05T00:00:00.000Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre", "dateUpdated": "2022-12-13T00:00:00.000Z"}, "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."}], "affected": [{"vendor": "n/a", "product": "n/a", "versions": [{"version": "n/a", "status": "affected"}]}], "references": [{"url": "https://security.netapp.com/advisory/ntap-20171130-0002/"}, {"name": "[oss-security] 20161219 Announce: OpenSSH 7.4 released", "tags": ["mailing-list"], "url": "http://www.openwall.com/lists/oss-security/2016/12/19/2"}, {"name": "1037490", "tags": ["vdb-entry"], "url": "http://www.securitytracker.com/id/1037490"}, {"url": "https://github.com/openbsd/src/commit/ac8147a06ed2e2403fb6b9a0c03e618a9333c0e9"}, {"url": "https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03818en_us"}, {"url": "http://www.slackware.com/security/viewer.php?l=slackware-security&y=2016&m=slackware-security.647637"}, {"name": "RHSA-2017:2029", "tags": ["vendor-advisory"], "url": "https://access.redhat.com/errata/RHSA-2017:2029"}, {"name": "[debian-lts-announce] 20180910 [SECURITY] [DLA 1500-1] openssh security update", "tags": ["mailing-list"], "url": "https://lists.debian.org/debian-lts-announce/2018/09/msg00010.html"}, {"name": "94977", "tags": ["vdb-entry"], "url": "http://www.securityfocus.com/bid/94977"}, {"url": "https://www.openssh.com/txt/release-7.4"}, {"url": "https://cert-portal.siemens.com/productcert/pdf/ssa-676336.pdf"}, {"url": "https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf"}], "problemTypes": [{"descriptions": [{"type": "text", "lang": "en", "description": "n/a"}]}], "datePublic": "2016-12-19T00:00:00.000Z"}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-06T03:07:32.056Z"}, "title": "CVE Program Container", "references": [{"url": "https://security.netapp.com/advisory/ntap-20171130-0002/", "tags": ["x_transferred"]}, {"name": "[oss-security] 20161219 Announce: OpenSSH 7.4 released", "tags": ["mailing-list", "x_transferred"], "url": "http://www.openwall.com/lists/oss-security/2016/12/19/2"}, {"name": "1037490", "tags": ["vdb-entry", "x_transferred"], "url": "http://www.securitytracker.com/id/1037490"}, {"url": "https://github.com/openbsd/src/commit/ac8147a06ed2e2403fb6b9a0c03e618a9333c0e9", "tags": ["x_transferred"]}, {"url": "https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03818en_us", "tags": ["x_transferred"]}, {"url": "http://www.slackware.com/security/viewer.php?l=slackware-security&y=2016&m=slackware-security.647637", "tags": ["x_transferred"]}, {"name": "RHSA-2017:2029", "tags": ["vendor-advisory", "x_transferred"], "url": "https://access.redhat.com/errata/RHSA-2017:2029"}, {"name": "[debian-lts-announce] 20180910 [SECURITY] [DLA 1500-1] openssh security update", "tags": ["mailing-list", "x_transferred"], "url": "https://lists.debian.org/debian-lts-announce/2018/09/msg00010.html"}, {"name": "94977", "tags": ["vdb-entry", "x_transferred"], "url": "http://www.securityfocus.com/bid/94977"}, {"url": "https://www.openssh.com/txt/release-7.4", "tags": ["x_transferred"]}, {"url": "https://cert-portal.siemens.com/productcert/pdf/ssa-676336.pdf", "tags": ["x_transferred"]}, {"url": "https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf", "tags": ["x_transferred"]}]}, {"problemTypes": [{"descriptions": [{"type": "CWE", "cweId": "CWE-119", "lang": "en", "description": "CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer"}]}], "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.2, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}}, {"other": {"type": "ssvc", "content": {"timestamp": "2026-05-29T20:19:02.373432Z", "id": "CVE-2016-10011", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-05-29T20:19:06.040Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CVE Program Container", "references": [{"url": "https://security.netapp.com/advisory/ntap-20171130-0002/", "tags": ["x_transferred"]}, {"url": "http://www.openwall.com/lists/oss-security/2016/12/19/2", "name": "[oss-security] 20161219 Announce: OpenSSH 7.4 released", "tags": ["mailing-list", "x_transferred"]}, {"url": "http://www.securitytracker.com/id/1037490", "name": "1037490", "tags": ["vdb-entry", "x_transferred"]}, {"url": "https://github.com/openbsd/src/commit/ac8147a06ed2e2403fb6b9a0c03e618a9333c0e9", "tags": ["x_transferred"]}, {"url": "https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03818en_us", "tags": ["x_transferred"]}, {"url": "http://www.slackware.com/security/viewer.php?l=slackware-security&y=2016&m=slackware-security.647637", "tags": ["x_transferred"]}, {"url": "https://access.redhat.com/errata/RHSA-2017:2029", "name": "RHSA-2017:2029", "tags": ["vendor-advisory", "x_transferred"]}, {"url": "https://lists.debian.org/debian-lts-announce/2018/09/msg00010.html", "name": "[debian-lts-announce] 20180910 [SECURITY] [DLA 1500-1] openssh security update", "tags": ["mailing-list", "x_transferred"]}, {"url": "http://www.securityfocus.com/bid/94977", "name": "94977", "tags": ["vdb-entry", "x_transferred"]}, {"url": "https://www.openssh.com/txt/release-7.4", "tags": ["x_transferred"]}, {"url": "https://cert-portal.siemens.com/productcert/pdf/ssa-676336.pdf", "tags": ["x_transferred"]}, {"url": "https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf", "tags": ["x_transferred"]}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-06T03:07:32.056Z"}}, {"title": "CISA ADP Vulnrichment", "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.2, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}}, {"other": {"type": "ssvc", "content": {"id": "CVE-2016-10011", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-05-29T20:19:02.373432Z"}}}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-119", "description": "CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer"}]}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-05-29T20:18:59.455Z"}}], "cna": {"affected": [{"vendor": "n/a", "product": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "datePublic": "2016-12-19T00:00:00.000Z", "references": [{"url": "https://security.netapp.com/advisory/ntap-20171130-0002/"}, {"url": "http://www.openwall.com/lists/oss-security/2016/12/19/2", "name": "[oss-security] 20161219 Announce: OpenSSH 7.4 released", "tags": ["mailing-list"]}, {"url": "http://www.securitytracker.com/id/1037490", "name": "1037490", "tags": ["vdb-entry"]}, {"url": "https://github.com/openbsd/src/commit/ac8147a06ed2e2403fb6b9a0c03e618a9333c0e9"}, {"url": "https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03818en_us"}, {"url": "http://www.slackware.com/security/viewer.php?l=slackware-security&y=2016&m=slackware-security.647637"}, {"url": "https://access.redhat.com/errata/RHSA-2017:2029", "name": "RHSA-2017:2029", "tags": ["vendor-advisory"]}, {"url": "https://lists.debian.org/debian-lts-announce/2018/09/msg00010.html", "name": "[debian-lts-announce] 20180910 [SECURITY] [DLA 1500-1] openssh security update", "tags": ["mailing-list"]}, {"url": "http://www.securityfocus.com/bid/94977", "name": "94977", "tags": ["vdb-entry"]}, {"url": "https://www.openssh.com/txt/release-7.4"}, {"url": "https://cert-portal.siemens.com/productcert/pdf/ssa-676336.pdf"}, {"url": "https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf"}], "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."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "text", "description": "n/a"}]}], "providerMetadata": {"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre", "dateUpdated": "2022-12-13T00:00:00.000Z"}}}, "cveMetadata": {"cveId": "CVE-2016-10011", "state": "PUBLISHED", "dateUpdated": "2026-05-29T20:19:06.040Z", "dateReserved": "2016-12-19T00:00:00.000Z", "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "datePublished": "2017-01-05T00:00:00.000Z", "assignerShortName": "mitre"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "cve@mitre.org"}], "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": "2026-06-17T00:38:53.813", "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"}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 6.2, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 2.5, "impactScore": 3.6, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2016-10011", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-05-29T20:19:02.373432Z", "version": "2.0.3"}}]}, "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": "https://access.redhat.com/errata/RHSA-2017:2029"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-676336.pdf"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://github.com/openbsd/src/commit/ac8147a06ed2e2403fb6b9a0c03e618a9333c0e9"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.debian.org/debian-lts-announce/2018/09/msg00010.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://security.netapp.com/advisory/ntap-20171130-0002/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03818en_us"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://www.openssh.com/txt/release-7.4"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-320"}], "source": "nvd@nist.gov", "type": "Primary"}, {"description": [{"lang": "en", "value": "CWE-119"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{"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"}

{}