TI-2023-19685 Aliases CVE-2023-38283 GHSA-q32v-3jr9-xvmc

In OpenBGPD before 8.1, incorrect handling of BGP update data (length of path attributes)…

MEDIUM 63CWE-754Published 2023-08-29 · Updated 2024-10-02

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: —
Confidentiality · integrity · availability: None · Low · None
Fix status: No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.01359 71st percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: Yes
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 8

CPE	Versions	Role	Vendor
cpe:2.3:a:openbgpd:openbgpd::::::::	before 8.1	Vulnerable	Openbgpd
cpe:2.3:o:openbsd:openbsd::::::::	before 7.3	Running on	OpenBSD
cpe:2.3:o:openbsd:openbsd:7.3:-::::::	7.3	Running on	OpenBSD
cpe:2.3:o:openbsd:openbsd:7.3:errata_001::::::	7.3 errata_001	Running on	OpenBSD
cpe:2.3:o:openbsd:openbsd:7.3:errata_002::::::	7.3 errata_002	Running on	OpenBSD
cpe:2.3:o:openbsd:openbsd:7.3:errata_003::::::	7.3 errata_003	Running on	OpenBSD
cpe:2.3:o:openbsd:openbsd:7.3:errata_004::::::	7.3 errata_004	Running on	OpenBSD
cpe:2.3:o:openbsd:openbsd:7.3:errata_005::::::	7.3 errata_005	Running on	OpenBSD

cpe:2.3:a:openbgpd:openbgpd:*:*:*:*:*:*:*:* Versions before 8.1 Vulnerable ·Openbgpd
cpe:2.3:o:openbsd:openbsd:*:*:*:*:*:*:*:* Versions before 7.3 Running on ·OpenBSD
cpe:2.3:o:openbsd:openbsd:7.3:-:*:*:*:*:*:* Versions 7.3 Running on ·OpenBSD
cpe:2.3:o:openbsd:openbsd:7.3:errata_001:*:*:*:*:*:* Versions 7.3 errata_001 Running on ·OpenBSD
cpe:2.3:o:openbsd:openbsd:7.3:errata_002:*:*:*:*:*:* Versions 7.3 errata_002 Running on ·OpenBSD
cpe:2.3:o:openbsd:openbsd:7.3:errata_003:*:*:*:*:*:* Versions 7.3 errata_003 Running on ·OpenBSD
cpe:2.3:o:openbsd:openbsd:7.3:errata_004:*:*:*:*:*:* Versions 7.3 errata_004 Running on ·OpenBSD
cpe:2.3:o:openbsd:openbsd:7.3:errata_005:*:*:*:*:*:* Versions 7.3 errata_005 Running on ·OpenBSD

Remediation

No fixed version listed by the sources yet.

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product

Red Hat

Timeline

2026-10-02 Threatist record created from CVE-2023-38283
2026-10-03 Alias added: GHSA-q32v-3jr9-xvmc

References

Exploit 1

https://blog.benjojo.co.uk/post/bgp-path-attributes-grave-error-handling

Patch 1

https://ftp.openbsd.org/pub/OpenBSD/patches/7.3/common/006_bgpd.patch.sig

Other 3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences