Opensmtpd: >> Opensmtpd >> 6.6.4 Security Vulnerabilities
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 address.
CVSS Score
7.8
EPSS Score
0.0
Published
2023-04-04
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 lookups.
CVSS Score
7.5
EPSS Score
0.017
Published
2020-12-24
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 the SMTP engine and the filters layer.
CVSS Score
7.5
EPSS Score
0.042
Published
2020-12-24