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CVE-2023-38283 Details

Description

In OpenBGPD before 8.1, incorrect handling of BGP update data (length of path attributes) set by a potentially distant remote actor may cause the system to incorrectly reset a session. This is fixed in OpenBSD 7.3 errata 006.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:5.3 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://blog.benjojo.co.uk/post/bgp-path-attributes-grave-error-handling	CVE	ExploitThird Party Advisory
https://ftp.openbsd.org/pub/OpenBSD/patches/7.3/common/006_bgpd.patch.sig	CVE	Patch
https://github.com/openbgpd-portable/openbgpd-portable/releases/tag/8.1	CVE	Release Notes
https://news.ycombinator.com/item?id=37305800	CVE	Mailing List
https://www.openbsd.org/errata73.html	CVE	Release Notes
https://blog.benjojo.co.uk/post/bgp-path-attributes-grave-error-handling	[email protected]	ExploitThird Party Advisory
https://ftp.openbsd.org/pub/OpenBSD/patches/7.3/common/006_bgpd.patch.sig	[email protected]	Patch
https://github.com/openbgpd-portable/openbgpd-portable/releases/tag/8.1	[email protected]	Release Notes
https://news.ycombinator.com/item?id=37305800	[email protected]	Mailing List
https://www.openbsd.org/errata73.html	[email protected]	Release Notes

see all 10 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-754	Improper Check for Unusual or Exceptional Conditions	[email protected]

Affected Products

Product	Versions
openbgpd openbgpd	< 8.1
CPE cpe:2.3:a:openbgpd:openbgpd:::::::: Remediation No remediation found in references.
openbsd openbsd	< 7.3 7.3 - 7.3 errata_001 7.3 errata_002 7.3 errata_003
CPE cpe:2.3:o:openbsd:openbsd:::::::: cpe:2.3:o:openbsd:openbsd:7.3:-:::::: cpe:2.3:o:openbsd:openbsd:7.3:errata_001:::::: cpe:2.3:o:openbsd:openbsd:7.3:errata_002:::::: cpe:2.3:o:openbsd:openbsd:7.3:errata_003:::::: cpe:2.3:o:openbsd:openbsd:7.3:errata_004:::::: cpe:2.3:o:openbsd:openbsd:7.3:errata_005:::::: Remediation No remediation found in references.

Change History

5 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
Jun 17, 2026	CVE Modified	CISA-ADP
Nov 21, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
Sep 7, 2023	Initial Analysis	[email protected]