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{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:openbsd:openssh:*:*:*:*:*:*:*:*", "matchCriteriaId": "27C9A807-7740-4D75-9B01-91ED53D14C40", "versionEndIncluding": "6.9", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Use-after-free vulnerability in the mm_answer_pam_free_ctx function in monitor.c in sshd in OpenSSH before 7.0 on non-OpenBSD platforms might allow local users to gain privileges by leveraging control of the sshd uid to send an unexpectedly early MONITOR_REQ_PAM_FREE_CTX request."}, {"lang": "es", "value": "Vulnerabilidad de uso despu\u00e9s de la liberaci\u00f3n de la memoria en la funci\u00f3n mm_answer_pam_free_ctx en monitor.c en sshd en OpenSSH en versiones anteriores a 7.0 en plataformas no OpenBSD, podr\u00eda permitir a usuarios locales obtener privilegios mediante el aprovechamiento del control del sshd uid para enviar una petici\u00f3n MONITOR_REQ_PAM_FREE_CTX inesperadamente temprana."}], "id": "CVE-2015-6564", "lastModified": "2026-05-06T22:30:45.220", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "LOCAL", "authentication": "NONE", "availabilityImpact": "COMPLETE", "baseScore": 6.9, "confidentialityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "vectorString": "AV:L/AC:M/Au:N/C:C/I:C/A:C", "version": "2.0"}, "exploitabilityScore": 3.4, "impactScore": 10.0, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}]}, "published": "2015-08-24T01:59:01.657", "references": [{"source": "cve@mitre.org", "url": "http://lists.fedoraproject.org/pipermail/package-announce/2015-August/165170.html"}, {"source": "cve@mitre.org", "url": "http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00017.html"}, {"source": "cve@mitre.org", "url": 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"af854a3a-2127-422b-91ae-364da2661108", "url": "https://github.com/openssh/openssh-portable/commit/5e75f5198769056089fb06c4d738ab0e5abc66f7"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://kc.mcafee.com/corporate/index?page=content&id=SB10136"}, {"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.gentoo.org/glsa/201512-04"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://www.broadcom.com/support/fibre-channel-networking/security-advisories/brocade-security-advisory-2019-764"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-264"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"affected_release": [{"advisory": "RHSA-2016:0741", "cpe": "cpe:/o:redhat:enterprise_linux:6", "package": "openssh-0:5.3p1-117.el6", "product_name": "Red Hat Enterprise Linux 6", "release_date": "2016-05-10T00:00:00Z"}, {"advisory": "RHSA-2015:2088", "cpe": "cpe:/o:redhat:enterprise_linux:7", "package": "openssh-0:6.6.1p1-22.el7", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2015-11-19T00:00:00Z"}], "bugzilla": {"description": "openssh: Use-after-free bug related to PAM support", "id": "1252852", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1252852"}, "csaw": false, "cvss": {"cvss_base_score": "4.0", "cvss_scoring_vector": "AV:N/AC:H/Au:N/C:P/I:P/A:N", "status": "verified"}, "cwe": "CWE-416", "details": ["Use-after-free vulnerability in the mm_answer_pam_free_ctx function in monitor.c in sshd in OpenSSH before 7.0 on non-OpenBSD platforms might allow local users to gain privileges by leveraging control of the sshd uid to send an unexpectedly early MONITOR_REQ_PAM_FREE_CTX request.", "A use-after-free flaw was found in OpenSSH. An attacker able to fully compromise a non-privileged pre-authentication process using a different flaw could possibly cause sshd to crash or execute arbitrary code with root privileges."], "name": "CVE-2015-6564", "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"}], "public_date": "2015-08-11T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2015-6564\nhttps://nvd.nist.gov/vuln/detail/CVE-2015-6564\nhttp://www.openssh.com/txt/release-7.0"], "threat_severity": "Moderate"}

{}