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Opensmtpd Security Vulnerabilities

cve
cve

CVE-2023-29323

ascii_load_sockaddr in smtpd in OpenBSD before 7.1 errata 024 and 7.2 before errata 020, and OpenSMTPD Portable before 7.0.0-portable commit f748277, can abort upon a connection from a local, scoped IPv6...

7.8CVSS

7.4AI Score

0.0004EPSS

2023-04-04 11:15 PM
186
cve
cve

CVE-2020-35679

smtpd/table.c in OpenSMTPD before 6.8.0p1 lacks a certain regfree, which might allow attackers to trigger a "very significant" memory leak via messages to an instance that performs many regex...

7.5CVSS

7.2AI Score

0.004EPSS

2020-12-24 04:15 PM
79
5
cve
cve

CVE-2020-35680

smtpd/lka_filter.c in OpenSMTPD before 6.8.0p1, in certain configurations, allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a crafted pattern of client activity, because the filter state machine does not properly maintain the I/O channel between.....

7.5CVSS

7.1AI Score

0.008EPSS

2020-12-24 04:15 PM
79
6
cve
cve

CVE-2020-8793

OpenSMTPD before 6.6.4 allows local users to read arbitrary files (e.g., on some Linux distributions) because of a combination of an untrusted search path in makemap.c and race conditions in the offline functionality in...

4.7CVSS

4.7AI Score

0.001EPSS

2020-02-25 05:15 PM
114
cve
cve

CVE-2020-8794

OpenSMTPD before 6.6.4 allows remote code execution because of an out-of-bounds read in mta_io in mta_session.c for multi-line replies. Although this vulnerability affects the client side of OpenSMTPD, it is possible to attack a server because the server code launches the client code during bounce....

9.8CVSS

9.4AI Score

0.94EPSS

2020-02-25 05:15 PM
168
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