VulnerabilityModified
CVE-2023-29323
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.
HIGH 7.8EPSS 0.28%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.28%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.28% probability · 20th percentile
- CISA KEV
- Not listed
- Affected
- opensmtpd/opensmtpd · openbsd/openbsd
- Source
- cve@mitre.org
References
- https://cvsweb.openbsd.org/cgi-bin/cvsweb/src/usr.sbin/smtpd/envelope.c.diff?r1=1.49&r2=1.49.4.1&f=hProduct
- https://cvsweb.openbsd.org/cgi-bin/cvsweb/src/usr.sbin/smtpd/envelope.c.diff?r1=1.50&r2=1.50.4.1&f=hProduct
- https://cvsweb.openbsd.org/cgi-bin/cvsweb/src/usr.sbin/smtpd/envelope.c.diff?r1=1.50&r2=1.51&f=hProduct
- https://ftp.openbsd.org/pub/OpenBSD/patches/7.1/common/024_smtpd.patch.sigPatch
- https://ftp.openbsd.org/pub/OpenBSD/patches/7.2/common/020_smtpd.patch.sigPatch
- https://github.com/OpenSMTPD/OpenSMTPD/commit/41d0eae481f538956b1f1fbadfb535043454061fPatch
- https://github.com/openbsd/src/commit/f748277ed1fc7065ae8998d61ed78b9ab1e55faePatch
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GZBNQBHCM6PIOUR6I5GEQS35XYT2NX6T/
- https://security.netapp.com/advisory/ntap-20230526-0006/
- https://cvsweb.openbsd.org/cgi-bin/cvsweb/src/usr.sbin/smtpd/envelope.c.diff?r1=1.49&r2=1.49.4.1&f=hProduct
- https://cvsweb.openbsd.org/cgi-bin/cvsweb/src/usr.sbin/smtpd/envelope.c.diff?r1=1.50&r2=1.50.4.1&f=hProduct
- https://cvsweb.openbsd.org/cgi-bin/cvsweb/src/usr.sbin/smtpd/envelope.c.diff?r1=1.50&r2=1.51&f=hProduct
- https://ftp.openbsd.org/pub/OpenBSD/patches/7.1/common/024_smtpd.patch.sigPatch
- https://ftp.openbsd.org/pub/OpenBSD/patches/7.2/common/020_smtpd.patch.sigPatch
- https://github.com/OpenSMTPD/OpenSMTPD/commit/41d0eae481f538956b1f1fbadfb535043454061fPatch
- https://github.com/openbsd/src/commit/f748277ed1fc7065ae8998d61ed78b9ab1e55faePatch
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GZBNQBHCM6PIOUR6I5GEQS35XYT2NX6T/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GZBNQBHCM6PIOUR6I5GEQS35XYT2NX6T/
- https://security.netapp.com/advisory/ntap-20230526-0006/
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.