{"id":"UBUNTU-CVE-2023-29323","details":"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.","modified":"2026-05-20T16:13:33.505239955Z","published":"2023-04-04T23:15:00Z","upstream":["CVE-2023-29323"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-29323"},{"type":"REPORT","url":"https://ftp.openbsd.org/pub/OpenBSD/patches/7.1/common/024_smtpd.patch.sig"},{"type":"REPORT","url":"https://ftp.openbsd.org/pub/OpenBSD/patches/7.2/common/020_smtpd.patch.sig"},{"type":"REPORT","url":"https://cvsweb.openbsd.org/cgi-bin/cvsweb/src/usr.sbin/smtpd/envelope.c.diff?r1=1.50&r2=1.51&f=h"},{"type":"REPORT","url":"https://cvsweb.openbsd.org/cgi-bin/cvsweb/src/usr.sbin/smtpd/envelope.c.diff?r1=1.50&r2=1.50.4.1&f=h"},{"type":"REPORT","url":"https://github.com/OpenSMTPD/OpenSMTPD/commit/41d0eae481f538956b1f1fbadfb535043454061f"},{"type":"REPORT","url":"https://github.com/OpenSMTPD/OpenSMTPD/blob/41d0eae481f538956b1f1fbadfb535043454061f/usr.sbin/smtpd/envelope.c#L280"},{"type":"REPORT","url":"https://cvsweb.openbsd.org/cgi-bin/cvsweb/src/usr.sbin/smtpd/envelope.c.diff?r1=1.49&r2=1.49.4.1&f=h"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2023-29323"}],"affected":[{"package":{"name":"opensmtpd","ecosystem":"Ubuntu:Pro:14.04:LTS","purl":"pkg:deb/ubuntu/opensmtpd?arch=source&distro=esm-infra-legacy%2Ftrusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.3.3p1-4","5.4.1p1-1","5.4.1p1-1ubuntu0.1~esm1"],"ecosystem_specific":{"binaries":[{"binary_version":"5.4.1p1-1ubuntu0.1~esm1","binary_name":"opensmtpd"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-29323.json"}},{"package":{"name":"opensmtpd","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/opensmtpd?arch=source&distro=esm-apps%2Fxenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.4.2p1-4","5.7.3p1-1","5.7.3p2-1","5.7.3p2-1ubuntu0.1~esm1","5.7.3p2-1ubuntu0.1~esm2"],"ecosystem_specific":{"binaries":[{"binary_name":"opensmtpd","binary_version":"5.7.3p2-1ubuntu0.1~esm2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-29323.json"}},{"package":{"name":"opensmtpd","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/opensmtpd?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["6.0.2p1-2build1","6.0.3p1-1","6.0.3p1-1build1","6.0.3p1-1ubuntu0.1","6.0.3p1-1ubuntu0.2"],"ecosystem_specific":{"binaries":[{"binary_name":"opensmtpd","binary_version":"6.0.3p1-1ubuntu0.2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-29323.json"}},{"package":{"name":"opensmtpd","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/opensmtpd?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["6.0.3p1-6","6.0.3p1-6build1","6.6.1p1-1","6.6.1p1-3","6.6.1p1-4","6.6.1p1-5","6.6.2p1-1","6.6.4p1-1"],"ecosystem_specific":{"binaries":[{"binary_version":"6.6.4p1-1","binary_name":"opensmtpd"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-29323.json"}},{"package":{"name":"opensmtpd","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/opensmtpd?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["6.8.0p2-3","6.8.0p2-4","6.8.0p2-4build1"],"ecosystem_specific":{"binaries":[{"binary_name":"opensmtpd","binary_version":"6.8.0p2-4build1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-29323.json"}},{"package":{"name":"opensmtpd","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/opensmtpd?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["7.3.0p1-1","7.3.0p2-1","7.4.0p1-1","7.4.0p1-1build2","7.4.0p1-1build4"],"ecosystem_specific":{"binaries":[{"binary_version":"7.4.0p1-1build4","binary_name":"opensmtpd"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-29323.json"}},{"package":{"name":"opensmtpd","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/opensmtpd?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["7.5.0p0-1","7.7.0p0-1"],"ecosystem_specific":{"binaries":[{"binary_name":"opensmtpd","binary_version":"7.7.0p0-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-29323.json"}},{"package":{"name":"opensmtpd","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/opensmtpd?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["7.7.0p0-1","7.8.0p0-1","7.8.0p0-2"],"ecosystem_specific":{"binaries":[{"binary_name":"opensmtpd","binary_version":"7.8.0p0-2"}]},"d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