CVE-2015-7687

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.

CVSS v3.0 9.8 CRITICAL
CVSS v2.0 7.5 HIGH

9.8^/10

CVSS v3.0 : CRITICAL

V3 Legend

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

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.5^/10

CVSS v2.0 : HIGH

V2 Legend

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

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://www.qualys.com/2015/10/02/opensmtpd-audit-report.txt	Exploit Technical Description Third Party Advisory
https://www.opensmtpd.org/announces/release-5.7.2.txt	Release Notes Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1268793	Issue Tracking Third Party Advisory VDB Entry
http://www.securityfocus.com/bid/76975	Third Party Advisory VDB Entry
http://www.openwall.com/lists/oss-security/2015/10/03/1	Mailing List Third Party Advisory VDB Entry
http://lists.fedoraproject.org/pipermail/package-announce/2015-October/169600.html	Third Party Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2015-November/170448.html	Third Party Advisory

Configurations

Configuration 1 (hide)

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

Configuration 2 (hide)

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

Information

Published : 2017-10-16 11:29

Updated : 2017-11-01 04:50

NVD link : CVE-2015-7687

Mitre link : CVE-2015-7687

JSON object : View

CWE

CWE-416

Use After Free

Products Affected

openbsd

opensmtpd

fedoraproject

fedora

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9.8 /10