CVE-2015-7687 - Vulnerability Details - OpenCVE

Use-after-free vulnerability in OpenSMTPD before 5.7.2 allows remote attackers to cause a denial of service (crash) or execute arbitrary code via vectors involving req_ca_vrfy_smtp and req_ca_vrfy_mta.

No CVSS v4.0

No CVSS v3.1

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact Partial

Integrity Impact Partial

Availability Impact Partial

This CVE is not in the KEV list.

The EPSS score is 0.10142.

Key SSVC decision points have not yet been added.

Vendors	Products
Fedoraproject Subscribe	Fedora Subscribe
Openbsd Subscribe	Opensmtpd Subscribe

Configuration 1 [-]

cpe:2.3:a:openbsd:opensmtpd:*:*:*:*:*:*:*:*

Configuration 2 [-]

OR	cpe:2.3:o:fedoraproject:fedora:22:::::::*
	cpe:2.3:o:fedoraproject:fedora:23:::::::*

No data.

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

Link	Providers
http://lists.fedoraproject.org/pipermail/package-announce/2015-November/170448.html
http://lists.fedoraproject.org/pipermail/package-announce/2015-October/169600.html
http://www.openwall.com/lists/oss-security/2015/10/03/1
http://www.securityfocus.com/bid/76975
https://bugzilla.redhat.com/show_bug.cgi?id=1268793
https://www.opensmtpd.org/announces/release-5.7.2.txt
https://www.qualys.com/2015/10/02/opensmtpd-audit-report.txt

History

No history.

Projects

Sign in to view the affected projects.

MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2017-10-16T18:00:00

Updated: 2024-08-06T07:58:59.610Z

Reserved: 2015-10-03T00:00:00

Link: CVE-2015-7687

Vulnrichment

No data.

NVD

Status : Deferred

Published: 2017-10-16T18:29:00.500

Modified: 2025-04-20T01:37:25.860

Link: CVE-2015-7687

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-416

{"containers": {"cna": {"affected": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "datePublic": "2015-10-02T00:00:00", "descriptions": [{"lang": "en", "value": "Use-after-free vulnerability in OpenSMTPD before 5.7.2 allows remote attackers to cause a denial of service (crash) or execute arbitrary code via vectors involving req_ca_vrfy_smtp and req_ca_vrfy_mta."}], "problemTypes": [{"descriptions": [{"description": "n/a", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2017-10-16T17:57:01", "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre"}, "references": [{"name": "[oss-security] 20151003 Re: Qualys Security Advisory - OpenSMTPD Audit Report", "tags": ["mailing-list", "x_refsource_MLIST"], "url": "http://www.openwall.com/lists/oss-security/2015/10/03/1"}, {"name": "FEDORA-2015-ed1c673f09", "tags": ["vendor-advisory", "x_refsource_FEDORA"], "url": "http://lists.fedoraproject.org/pipermail/package-announce/2015-November/170448.html"}, {"tags": ["x_refsource_CONFIRM"], "url": "https://www.opensmtpd.org/announces/release-5.7.2.txt"}, {"name": "76975", "tags": ["vdb-entry", "x_refsource_BID"], "url": "http://www.securityfocus.com/bid/76975"}, {"tags": ["x_refsource_MISC"], "url": "https://www.qualys.com/2015/10/02/opensmtpd-audit-report.txt"}, {"name": "FEDORA-2015-fd133d52cc", "tags": ["vendor-advisory", "x_refsource_FEDORA"], "url": "http://lists.fedoraproject.org/pipermail/package-announce/2015-October/169600.html"}, {"tags": ["x_refsource_CONFIRM"], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1268793"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "cve@mitre.org", "ID": "CVE-2015-7687", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "n/a", "version": {"version_data": [{"version_value": "n/a"}]}}]}, "vendor_name": "n/a"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "Use-after-free vulnerability in OpenSMTPD before 5.7.2 allows remote attackers to cause a denial of service (crash) or execute arbitrary code via vectors involving req_ca_vrfy_smtp and req_ca_vrfy_mta."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "n/a"}]}]}, "references": {"reference_data": [{"name": "[oss-security] 20151003 Re: Qualys Security Advisory - OpenSMTPD Audit Report", "refsource": "MLIST", "url": "http://www.openwall.com/lists/oss-security/2015/10/03/1"}, {"name": "FEDORA-2015-ed1c673f09", "refsource": "FEDORA", "url": "http://lists.fedoraproject.org/pipermail/package-announce/2015-November/170448.html"}, {"name": "https://www.opensmtpd.org/announces/release-5.7.2.txt", "refsource": "CONFIRM", "url": "https://www.opensmtpd.org/announces/release-5.7.2.txt"}, {"name": "76975", "refsource": "BID", "url": "http://www.securityfocus.com/bid/76975"}, {"name": "https://www.qualys.com/2015/10/02/opensmtpd-audit-report.txt", "refsource": "MISC", "url": "https://www.qualys.com/2015/10/02/opensmtpd-audit-report.txt"}, {"name": "FEDORA-2015-fd133d52cc", "refsource": "FEDORA", "url": "http://lists.fedoraproject.org/pipermail/package-announce/2015-October/169600.html"}, {"name": "https://bugzilla.redhat.com/show_bug.cgi?id=1268793", "refsource": "CONFIRM", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1268793"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-06T07:58:59.610Z"}, "title": "CVE Program Container", "references": [{"name": "[oss-security] 20151003 Re: Qualys Security Advisory - OpenSMTPD Audit Report", "tags": ["mailing-list", "x_refsource_MLIST", "x_transferred"], "url": "http://www.openwall.com/lists/oss-security/2015/10/03/1"}, {"name": "FEDORA-2015-ed1c673f09", "tags": ["vendor-advisory", "x_refsource_FEDORA", "x_transferred"], "url": "http://lists.fedoraproject.org/pipermail/package-announce/2015-November/170448.html"}, {"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://www.opensmtpd.org/announces/release-5.7.2.txt"}, {"name": "76975", "tags": ["vdb-entry", "x_refsource_BID", "x_transferred"], "url": "http://www.securityfocus.com/bid/76975"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://www.qualys.com/2015/10/02/opensmtpd-audit-report.txt"}, {"name": "FEDORA-2015-fd133d52cc", "tags": ["vendor-advisory", "x_refsource_FEDORA", "x_transferred"], "url": "http://lists.fedoraproject.org/pipermail/package-announce/2015-October/169600.html"}, {"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1268793"}]}]}, "cveMetadata": {"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "cveId": "CVE-2015-7687", "datePublished": "2017-10-16T18:00:00", "dateReserved": "2015-10-03T00:00:00", "dateUpdated": "2024-08-06T07:58:59.610Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:openbsd:opensmtpd:*:*:*:*:*:*:*:*", "matchCriteriaId": "9AA94460-F930-4E1B-90F5-1802AFA75D17", "versionEndIncluding": "5.7.1", "vulnerable": true}], "negate": false, "operator": "OR"}]}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:fedoraproject:fedora:22:*:*:*:*:*:*:*", "matchCriteriaId": "253C303A-E577-4488-93E6-68A8DD942C38", "vulnerable": true}, {"criteria": "cpe:2.3:o:fedoraproject:fedora:23:*:*:*:*:*:*:*", "matchCriteriaId": "E79AB8DD-C907-4038-A931-1A5A4CFB6A5B", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Use-after-free vulnerability in OpenSMTPD before 5.7.2 allows remote attackers to cause a denial of service (crash) or execute arbitrary code via vectors involving req_ca_vrfy_smtp and req_ca_vrfy_mta."}, {"lang": "es", "value": "Uso de memoria previamente liberada en OpenSMTPD en versiones anteriores a la 5.7.2 permite que atacantes remotos provoquen una denegaci\u00f3n de servicio (cierre inesperado) o que ejecuten c\u00f3digo arbitrario mediante vectores relacionados con req_ca_vrfy_smtp y req_ca_vrfy_mta."}], "id": "CVE-2015-7687", "lastModified": "2025-04-20T01:37:25.860", "metrics": {"cvssMetricV2": [{"acInsufInfo": true, "baseSeverity": "HIGH", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 7.5, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV30": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.0"}, "exploitabilityScore": 3.9, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2017-10-16T18:29:00.500", "references": [{"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "http://lists.fedoraproject.org/pipermail/package-announce/2015-November/170448.html"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "http://lists.fedoraproject.org/pipermail/package-announce/2015-October/169600.html"}, {"source": "cve@mitre.org", "tags": ["Mailing List", "Third Party Advisory", "VDB Entry"], "url": "http://www.openwall.com/lists/oss-security/2015/10/03/1"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://www.securityfocus.com/bid/76975"}, {"source": "cve@mitre.org", "tags": ["Issue Tracking", "Third Party Advisory", "VDB Entry"], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1268793"}, {"source": "cve@mitre.org", "tags": ["Release Notes", "Vendor Advisory"], "url": "https://www.opensmtpd.org/announces/release-5.7.2.txt"}, {"source": "cve@mitre.org", "tags": ["Exploit", "Technical Description", "Third Party Advisory"], "url": "https://www.qualys.com/2015/10/02/opensmtpd-audit-report.txt"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "http://lists.fedoraproject.org/pipermail/package-announce/2015-November/170448.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "http://lists.fedoraproject.org/pipermail/package-announce/2015-October/169600.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Third Party Advisory", "VDB Entry"], "url": "http://www.openwall.com/lists/oss-security/2015/10/03/1"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://www.securityfocus.com/bid/76975"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Issue Tracking", "Third Party Advisory", "VDB Entry"], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1268793"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Release Notes", "Vendor Advisory"], "url": "https://www.opensmtpd.org/announces/release-5.7.2.txt"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Technical Description", "Third Party Advisory"], "url": "https://www.qualys.com/2015/10/02/opensmtpd-audit-report.txt"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-416"}], "source": "nvd@nist.gov", "type": "Primary"}]}