CVE-2023-29323

HIGH

OpenBSD <7.1-024 & 7.2-020 - DoS

Title source: llm

Description

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.

References (10)

[Product] https://cvsweb.openbsd.org/cgi-bin/cvsweb/src/usr.sbin/smtpd/envelope.c.diff?r1=1.49&r2=1.49.4.1&f=h

[Product] https://cvsweb.openbsd.org/cgi-bin/cvsweb/src/usr.sbin/smtpd/envelope.c.diff?r1=1.50&r2=1.50.4.1&f=h

[Product] https://cvsweb.openbsd.org/cgi-bin/cvsweb/src/usr.sbin/smtpd/envelope.c.diff?r1=1.50&r2=1.51&f=h

[Patch] https://ftp.openbsd.org/pub/OpenBSD/patches/7.1/common/024_smtpd.patch.sig

[Patch] https://ftp.openbsd.org/pub/OpenBSD/patches/7.2/common/020_smtpd.patch.sig

[Patch] https://github.com/OpenSMTPD/OpenSMTPD/commit/41d0eae481f538956b1f1fbadfb535043454061f

View Patch ZIP pw:eip

[Patch] https://github.com/openbsd/src/commit/f748277ed1fc7065ae8998d61ed78b9ab1e55fae

View Patch ZIP pw:eip

[Vendor Advisory] https://security.netapp.com/advisory/ntap-20230526-0006/

[Mailing List, Third Party Advisory] https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GZBNQBHCM6PIOUR6I5GEQS35XYT2NX6T/

[Mailing List, Third Party Advisory] https://lists.fedoraproject.org/archives/list/[email protected]/message/GZBNQBHCM6PIOUR6I5GEQS35XYT2NX6T/

Scores

CVSS v3 7.8

EPSS 0.0004

EPSS Percentile 12.4%

Attack Vector LOCAL

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Classification

Status published

Affected Products (3)

opensmtpd/opensmtpd < 7.0.0

openbsd/openbsd

Timeline

Published Apr 04, 2023

Tracked Since Feb 18, 2026