CVE-2015-7687

9.8 CRITICAL

Published: October 16, 2017 Modified: May 13, 2026

Description

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.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0

Vector String

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

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory

http://lists.fedoraproject.org/pipermail/package-announce/2015-November/170448.html

Source: cve@mitre.org

Third Party Advisory

http://lists.fedoraproject.org/pipermail/package-announce/2015-October/169600.html

Source: cve@mitre.org

Third Party Advisory

http://www.openwall.com/lists/oss-security/2015/10/03/1

Source: cve@mitre.org

Mailing List Third Party Advisory VDB Entry

http://www.securityfocus.com/bid/76975

Source: cve@mitre.org

Third Party Advisory VDB Entry

https://bugzilla.redhat.com/show_bug.cgi?id=1268793

Source: cve@mitre.org

Issue Tracking Third Party Advisory VDB Entry

https://www.opensmtpd.org/announces/release-5.7.2.txt

Source: cve@mitre.org

Release Notes Vendor Advisory

https://www.qualys.com/2015/10/02/opensmtpd-audit-report.txt

Source: cve@mitre.org

Exploit Technical Description Third Party Advisory

http://lists.fedoraproject.org/pipermail/package-announce/2015-November/170448.html