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CVE-2015-7687

nvd nist
Published: Oct 16, 2017Modified: May 13, 2026

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9.8
Vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Exploitability: 3.9 / Impact: 5.9
Source: NVD

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.

Affected (3)

Openbsd
1 product
Opensmtpd
Fedoraproject
1 product
Fedora
Configuration A
1 vulnerable
Vulnerable SoftwareAffected Versions
Opensmtpd
Up to 5.7.1
Configuration B
2 vulnerable
Vulnerable SoftwareAffected Versions
Fedoraproject
Fedora
Version 22
Fedora
Version 23

Related CWEs

CWE-416
Use After Free
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

References (14)

Source: cve@mitre.org
Third Party Advisory
Source: cve@mitre.org
Third Party Advisory
Source: cve@mitre.org
Mailing ListThird Party AdvisoryVDB Entry
Source: cve@mitre.org
Third Party AdvisoryVDB Entry
Source: cve@mitre.org
Issue TrackingThird Party AdvisoryVDB Entry
Source: cve@mitre.org
Release NotesVendor Advisory
Source: cve@mitre.org
ExploitTechnical DescriptionThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing ListThird Party AdvisoryVDB Entry
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party AdvisoryVDB Entry
Source: af854a3a-2127-422b-91ae-364da2661108
Issue TrackingThird Party AdvisoryVDB Entry
Source: af854a3a-2127-422b-91ae-364da2661108
Release NotesVendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
ExploitTechnical DescriptionThird Party Advisory

Timeline

No history available yet.