CVE-2015-7687

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Summary

CVECVE-2015-7687
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2017-10-16 18:29:00 UTC
Updated2025-04-20 01:37:25 UTC
DescriptionUse-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.

Risk And Classification

Primary CVSS: v3.0 9.8 CRITICAL from [email protected]

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Problem Types: CWE-416 | n/a

VersionSourceTypeScoreSeverityVector
3.0[email protected]Primary9.8CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
2.0[email protected]Primary7.5AV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS v3.0 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial

AV:N/AC:L/Au:N/C:P/I:P/A:P

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Fedoraproject Fedora 22 All All All
Operating System Fedoraproject Fedora 23 All All All
Application Openbsd Opensmtpd All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
www.qualys.com/2015/10/02/opensmtpd-audit-report.txt af854a3a-2127-422b-91ae-364da2661108 www.qualys.com Exploit, Technical Description, Third Party Advisory
oss-security - Re: Qualys Security Advisory - OpenSMTPD Audit Report af854a3a-2127-422b-91ae-364da2661108 www.openwall.com Mailing List, Third Party Advisory, VDB Entry
OpenSMTPD CVE-2015-7687 Use After Free Remote Code Execution Vulnerability af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com Third Party Advisory, VDB Entry
1268793 – (CVE-2015-7687) CVE-2015-7687 OpenSMTPD: multiple vulnerabilities fixed in 5.7.2 af854a3a-2127-422b-91ae-364da2661108 bugzilla.redhat.com Issue Tracking, Third Party Advisory, VDB Entry
www.opensmtpd.org/announces/release-5.7.2.txt af854a3a-2127-422b-91ae-364da2661108 www.opensmtpd.org Release Notes, Vendor Advisory
[SECURITY] Fedora 22 Update: opensmtpd-5.7.3p1-1.fc22 af854a3a-2127-422b-91ae-364da2661108 lists.fedoraproject.org Third Party Advisory
[SECURITY] Fedora 23 Update: opensmtpd-5.7.3p1-1.fc23 af854a3a-2127-422b-91ae-364da2661108 lists.fedoraproject.org Third Party Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
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