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. This is fixed in OpenBSD 7.3 errata 006.

CVSS v3 5.3 MEDIUM

5.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.9 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://blog.benjojo.co.uk/post/bgp-path-attributes-grave-error-handling	Exploit Third Party Advisory
https://ftp.openbsd.org/pub/OpenBSD/patches/7.3/common/006_bgpd.patch.sig	Patch
https://github.com/openbgpd-portable/openbgpd-portable/releases/tag/8.1	Release Notes
https://news.ycombinator.com/item?id=37305800	Mailing List
https://www.openbsd.org/errata73.html	Release Notes
https://blog.benjojo.co.uk/post/bgp-path-attributes-grave-error-handling	Exploit Third Party Advisory
https://ftp.openbsd.org/pub/OpenBSD/patches/7.3/common/006_bgpd.patch.sig	Patch
https://github.com/openbgpd-portable/openbgpd-portable/releases/tag/8.1	Release Notes
https://news.ycombinator.com/item?id=37305800	Mailing List
https://www.openbsd.org/errata73.html	Release Notes

Configurations

Configuration 1 (hide)

AND

cpe:2.3:a:openbgpd:openbgpd:*:*:*:*:*:*:*:*

OR	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::::::

History

21 Nov 2024, 08:13

Type	Values Removed	Values Added
New CVE

Information

Published : 2023-08-29 16:15

Updated : 2024-11-21 08:13

NVD link : CVE-2023-38283

Mitre link : CVE-2023-38283

CVE.ORG link : CVE-2023-38283

JSON object : View

Products Affected

openbsd

openbsd

openbgpd

openbgpd

CWE

CWE-754

Improper Check for Unusual or Exceptional Conditions

{"id": "CVE-2023-38283", "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.3, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 1.4, "exploitabilityScore": 3.9}]}, "published": "2023-08-29T16:15:08.960", "references": [{"url": "https://blog.benjojo.co.uk/post/bgp-path-attributes-grave-error-handling", "tags": ["Exploit", "Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://ftp.openbsd.org/pub/OpenBSD/patches/7.3/common/006_bgpd.patch.sig", "tags": ["Patch"], "source": "cve@mitre.org"}, {"url": "https://github.com/openbgpd-portable/openbgpd-portable/releases/tag/8.1", "tags": ["Release Notes"], "source": "cve@mitre.org"}, {"url": "https://news.ycombinator.com/item?id=37305800", "tags": ["Mailing List"], "source": "cve@mitre.org"}, {"url": "https://www.openbsd.org/errata73.html", "tags": ["Release Notes"], "source": "cve@mitre.org"}, {"url": "https://blog.benjojo.co.uk/post/bgp-path-attributes-grave-error-handling", "tags": ["Exploit", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://ftp.openbsd.org/pub/OpenBSD/patches/7.3/common/006_bgpd.patch.sig", "tags": ["Patch"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://github.com/openbgpd-portable/openbgpd-portable/releases/tag/8.1", "tags": ["Release Notes"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://news.ycombinator.com/item?id=37305800", "tags": ["Mailing List"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://www.openbsd.org/errata73.html", "tags": ["Release Notes"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-754"}]}], "descriptions": [{"lang": "en", "value": "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."}], "lastModified": "2024-11-21T08:13:13.623", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:openbgpd:openbgpd:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E100F828-9002-4B76-902C-49345579AAA7", "versionEndExcluding": "8.1"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:openbsd:openbsd:*:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "131B4208-6843-40D3-8818-159D1204BD0E", "versionEndExcluding": "7.3"}, {"criteria": "cpe:2.3:o:openbsd:openbsd:7.3:-:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "7BAA0C9B-7CEA-4647-809F-027EB34C142E"}, {"criteria": "cpe:2.3:o:openbsd:openbsd:7.3:errata_001:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "B3CC37B8-46C0-407B-8DE4-2B5BC36BA969"}, {"criteria": "cpe:2.3:o:openbsd:openbsd:7.3:errata_002:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "D53FE3CA-1A90-4783-8AC2-C0B4CF6F052D"}, {"criteria": "cpe:2.3:o:openbsd:openbsd:7.3:errata_003:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "9C32DD2B-BBE0-4031-B105-743E4058B4A1"}, {"criteria": "cpe:2.3:o:openbsd:openbsd:7.3:errata_004:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "3F481F84-81C2-4E5F-BD60-4C46CD3DD603"}, {"criteria": "cpe:2.3:o:openbsd:openbsd:7.3:errata_005:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "DCAE527B-1176-4759-B903-59A72245517B"}], "operator": "OR"}], "operator": "AND"}], "sourceIdentifier": "cve@mitre.org"}