Vulnerability in OpenBSD
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.003 (18.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 18th percentile — 18.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
Public proof-of-concept exploits
References
- ftp.openbsd.org/pub/OpenBSD/patches/7.2/common/020_smtpd.patch.sig (Patch)
- ftp.openbsd.org/pub/OpenBSD/patches/7.1/common/024_smtpd.patch.sig (Patch)
- cvsweb.openbsd.org/cgi-bin/cvsweb/src/usr.sbin/smtpd/envelope.c.diff (Product)
- cvsweb.openbsd.org/cgi-bin/cvsweb/src/usr.sbin/smtpd/envelope.c.diff (Product)
- cvsweb.openbsd.org/cgi-bin/cvsweb/src/usr.sbin/smtpd/envelope.c.diff (Product)
- github.com/OpenSMTPD/OpenSMTPD/commit/41d0eae481f538956b1f1fbadfb535043454061f (Patch)
- github.com/openbsd/src/commit/f748277ed1fc7065ae8998d61ed78b9ab1e55fae (Patch)
- security.netapp.com/advisory/ntap-20230526-0006/
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- af854a3a-2127-422b-91ae-364da2661108
Frequently asked questions
- What is CVE-2023-29323?
- CVE-2023-29323 is a high-severity vulnerability in OpenBSD. CVSS score: 7.8/10. Published 2023-04-04.
- How severe is CVE-2023-29323?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2023-29323 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.