Published: 16/10/2017 Updated: 01/11/2017

CVSS v2 Base Score: 7.5 | Impact Score: 6.4 | Exploitability Score: 10

CVSS v3 Base Score: 9.8 | Impact Score: 5.9 | Exploitability Score: 3.9

VMScore: 668

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

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

Vulnerable Product	Search on Vulmon	Subscribe to Product
openbsd opensmtpd
fedoraproject fedora 22
fedoraproject fedora 23

Debian Bug report logs - #800787 opensmtpd: CVE-2015-7687 (and other issues without CVE yet) Package: src:opensmtpd; Maintainer for src:opensmtpd is Ryan Kavanagh <rak@debianorg>; Reported by: Salvatore Bonaccorso <carnil@debianorg> Date: Sat, 3 Oct 2015 15:36:01 UTC Severity: grave Tags: fixed-upstream, security, ...

CWE-416 https://www.qualys.com/2015/10/02/opensmtpd-audit-report.txt https://www.opensmtpd.org/announces/release-5.7.2.txt https://bugzilla.redhat.com/show_bug.cgi?id=1268793 http://www.securityfocus.com/bid/76975 http://www.openwall.com/lists/oss-security/2015/10/03/1 http://lists.fedoraproject.org/pipermail/package-announce/2015-October/169600.html http://lists.fedoraproject.org/pipermail/package-announce/2015-November/170448.html https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=800787 https://nvd.nist.gov

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CVE-2015-7687

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