VulnerabilityModified
CVE-2023-38283
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.
MEDIUM 5.3EPSS 1.36%
Does this matter?
Lower severity and a low EPSS score (1.36%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 5.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
- EPSS
- 1.36% probability · 70th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-754
- Affected
- openbgpd/openbgpd
- Source
- cve@mitre.org
References
- https://blog.benjojo.co.uk/post/bgp-path-attributes-grave-error-handlingExploit, Third Party Advisory
- https://ftp.openbsd.org/pub/OpenBSD/patches/7.3/common/006_bgpd.patch.sigPatch
- https://github.com/openbgpd-portable/openbgpd-portable/releases/tag/8.1Release Notes
- https://news.ycombinator.com/item?id=37305800Mailing List
- https://www.openbsd.org/errata73.htmlRelease Notes
- https://blog.benjojo.co.uk/post/bgp-path-attributes-grave-error-handlingExploit, Third Party Advisory
- https://ftp.openbsd.org/pub/OpenBSD/patches/7.3/common/006_bgpd.patch.sigPatch
- https://github.com/openbgpd-portable/openbgpd-portable/releases/tag/8.1Release Notes
- https://news.ycombinator.com/item?id=37305800Mailing List
- https://www.openbsd.org/errata73.htmlRelease Notes
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.