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.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - 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. (CVE-2023-29323)

Note that Nessus relies on the presence of the package as reported by the vendor.

The remote Fedora 40 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2024-28fde3feb7 advisory.

    opensmtpd: 7.4.0p1 release


Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

It is, therefore, affected by a vulnerability as referenced in the ALAS2023-2023-221 advisory.

    ascii_load_sockaddr in smtpd in OpenBSD before 7.1 errata 024 and 7.2 before errata 020, and OpenSMTPD     Portable through 7.0.0-portable, can abort upon a connection from a local, scoped IPv6 address.
    (CVE-2023-29323)

Tenable has extracted the preceding description block directly from the tested product security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Type	Severity
226082	Linux Distros Unpatched Vulnerability : CVE-2023-29323	Nessus	Misc.	Local	high
194598	Fedora 40 : opensmtpd (2024-28fde3feb7)	Nessus	Fedora Local Security Checks	Local	high
177681	Amazon Linux 2023 : opensmtpd (ALAS2023-2023-221)	Nessus	Amazon Linux Local Security Checks	Local	high

Detections

Analytics

CVE-2023-29323

high

Tenable Plugins

high

high

high