{"id":"CVE-2023-29323","aliases":["DEBIAN-CVE-2023-29323","EUVD-2023-32898","GHSA-c3j9-w5jx-cmmq","UBUNTU-CVE-2023-29323"],"status":"published","title":"ascii_load_sockaddr in smtpd in OpenBSD before 7.1 errata 024 and 7.2 before errata 020, and...","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.","severity":{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.00279,"percentile":0.20505,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"published":"2023-04-04T00:00:00Z","modified":"2026-10-28T10:38:43Z","fixes":[{"ecosystem":"Debian:13","package":"opensmtpd","fixed_in":["7.3.0p1-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"opensmtpd","fixed_in":["7.3.0p1-1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"opensmtpd","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["6.8.0p2-4","7.3.0p1-1","7.3.0p2-1","7.4.0p1-1","7.4.0p1-1~bpo12+1","7.5.0p0-1","7.6.0p1-1","7.7.0p0-1","7.8.0p0-1","7.8.0p0-2","7.9.0p0-1"]},{"source":"osv","ecosystem":"Debian:13","package":"opensmtpd","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7.3.0p1-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"opensmtpd","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7.3.0p1-1"}]}]},{"source":"osv","ecosystem":"Ubuntu:Pro:14.04:LTS","package":"opensmtpd","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.3.3p1-4","5.4.1p1-1","5.4.1p1-1ubuntu0.1~esm1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:16.04:LTS","package":"opensmtpd","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"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"opensmtpd","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"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"opensmtpd","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"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"opensmtpd","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["6.8.0p2-3","6.8.0p2-4","6.8.0p2-4build1"]},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"opensmtpd","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"]},{"source":"osv","ecosystem":"Ubuntu:25.10","package":"opensmtpd","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["7.5.0p0-1","7.7.0p0-1"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"opensmtpd","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["7.8.0p0-2","7.8.0p0-2build1"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"opensmtpd","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["7.7.0p0-1","7.8.0p0-1","7.8.0p0-2"]}],"products":[{"vendor":"openbsd","product":"openbsd"},{"vendor":"opensmtpd","product":"opensmtpd"}],"references":[{"url":"https://ftp.openbsd.org/pub/OpenBSD/patches/7.2/common/020_smtpd.patch.sig","tags":["x_transferred","Patch","web","report"]},{"url":"https://ftp.openbsd.org/pub/OpenBSD/patches/7.1/common/024_smtpd.patch.sig","tags":["x_transferred","Patch","web","report"]},{"url":"https://cvsweb.openbsd.org/cgi-bin/cvsweb/src/usr.sbin/smtpd/envelope.c.diff?r1=1.49\u0026r2=1.49.4.1\u0026f=h","tags":["x_transferred","Product","web","report"]},{"url":"https://cvsweb.openbsd.org/cgi-bin/cvsweb/src/usr.sbin/smtpd/envelope.c.diff?r1=1.50\u0026r2=1.50.4.1\u0026f=h","tags":["x_transferred","Product","web","report"]},{"url":"https://cvsweb.openbsd.org/cgi-bin/cvsweb/src/usr.sbin/smtpd/envelope.c.diff?r1=1.50\u0026r2=1.51\u0026f=h","tags":["x_transferred","Product","web","report"]},{"url":"https://github.com/OpenSMTPD/OpenSMTPD/commit/41d0eae481f538956b1f1fbadfb535043454061f","tags":["x_transferred","Patch","fix","report"]},{"url":"https://github.com/openbsd/src/commit/f748277ed1fc7065ae8998d61ed78b9ab1e55fae","tags":["x_transferred","Patch","fix"]},{"url":"https://security.netapp.com/advisory/ntap-20230526-0006/","tags":["x_transferred","advisory"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GZBNQBHCM6PIOUR6I5GEQS35XYT2NX6T/","tags":["vendor-advisory","x_transferred","advisory"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GZBNQBHCM6PIOUR6I5GEQS35XYT2NX6T/","tags":["web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-29323","tags":["advisory"]},{"url":"https://github.com/OpenSMTPD/OpenSMTPD/blob/41d0eae481f538956b1f1fbadfb535043454061f/usr.sbin/smtpd/envelope.c#L280","tags":["report"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GZBNQBHCM6PIOUR6I5GEQS35XYT2NX6T"},{"url":"https://security.netapp.com/advisory/ntap-20230526-0006"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GZBNQBHCM6PIOUR6I5GEQS35XYT2NX6T"},{"url":"https://github.com/advisories/GHSA-c3j9-w5jx-cmmq"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/29xxx/CVE-2023-29323.json","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2023-29323","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2023-29323","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2023-29323","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2023-29323","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.","status":"published","published":"2023-04-04T00:00:00Z","modified":"2025-11-04T18:14:35.429Z","updated_at":"2026-11-02T14:35:28.643185Z"}],"euvd":[{"id":"EUVD-2023-32898","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.","status":"published","published":"2023-04-04T00:00:00Z","modified":"2025-11-04T18:14:35Z","updated_at":"2026-11-02T19:49:25.004858Z"}],"ghsa":[{"id":"GHSA-c3j9-w5jx-cmmq","title":"ascii_load_sockaddr in smtpd in OpenBSD before 7.1 errata 024 and 7.2 before errata 020, and...","description":"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.","status":"published","published":"2023-04-05T00:30:38Z","modified":"2025-11-04T21:31:36Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:04:37.582006Z"}],"nvd":[{"id":"CVE-2023-29323","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.","status":"published","published":"2023-04-04T23:15:07.347Z","modified":"2026-06-17T05:49:48.013Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"}],"updated_at":"2026-11-02T14:07:53.719171Z"}],"osv":[{"id":"DEBIAN-CVE-2023-29323","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.","status":"published","published":"2023-04-04T23:15:07.347Z","modified":"2026-10-26T18:02:14.057766874Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:45:39.679062Z"},{"id":"UBUNTU-CVE-2023-29323","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.","status":"published","published":"2023-04-04T23:15:00Z","modified":"2026-10-17T12:57:18.398328471Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T16:54:20.997471Z"},{"id":"CVE-2023-29323","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.","status":"published","published":"2023-04-04T00:00:00Z","modified":"2026-10-28T10:38:43.141588174Z","updated_at":"2026-11-02T15:44:31.468318Z"}]}}