CVE-2022-40318

An issue was discovered in bgpd in FRRouting (FRR) through 8.4. By crafting a BGP OPEN message with an option of type 0xff (Extended Length from RFC 9072), attackers may cause a denial of service (assertion failure and daemon restart, or out-of-bounds read). This is possible because of inconsistent boundary checks that do not account for reading 3 bytes (instead of 2) in this 0xff case. NOTE: this behavior occurs in bgp_open_option_parse in the bgp_open.c file, a different location (with a different attack vector) relative to CVE-2022-40302.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/FRRouting/frr/releases	Third Party Advisory
https://lists.debian.org/debian-lts-announce/2023/09/msg00020.html	Mailing List Third Party Advisory
https://www.debian.org/security/2023/dsa-5495	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:frrouting:frrouting:*:*:*:*:*:*:*:*

Configuration 2 (hide)

OR	cpe:2.3:o:debian:debian_linux:10.0:::::::*
	cpe:2.3:o:debian:debian_linux:11.0:::::::*
	cpe:2.3:o:debian:debian_linux:12.0:::::::*

History

No history.

Information

Published : 2023-05-03 12:16

Updated : 2024-02-16 18:15

NVD link : CVE-2022-40318

Mitre link : CVE-2022-40318

CVE.ORG link : CVE-2022-40318

JSON object : View

Products Affected

frrouting

frrouting

debian

debian_linux

CWE

CWE-125

Out-of-bounds Read

{"id": "CVE-2022-40318", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.5, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 2.8}]}, "published": "2023-05-03T12:16:27.800", "references": [{"url": "https://github.com/FRRouting/frr/releases", "tags": ["Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://lists.debian.org/debian-lts-announce/2023/09/msg00020.html", "tags": ["Mailing List", "Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://www.debian.org/security/2023/dsa-5495", "tags": ["Third Party Advisory"], "source": "cve@mitre.org"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-125"}]}], "descriptions": [{"lang": "en", "value": "An issue was discovered in bgpd in FRRouting (FRR) through 8.4. By crafting a BGP OPEN message with an option of type 0xff (Extended Length from RFC 9072), attackers may cause a denial of service (assertion failure and daemon restart, or out-of-bounds read). This is possible because of inconsistent boundary checks that do not account for reading 3 bytes (instead of 2) in this 0xff case. NOTE: this behavior occurs in bgp_open_option_parse in the bgp_open.c file, a different location (with a different attack vector) relative to CVE-2022-40302."}, {"lang": "es", "value": "Se descubri\u00f3 un problema en bgpd en FRRouting (FRR) hasta 8.4. Al manipular un mensaje BGP OPEN con una opci\u00f3n de tipo 0xff (longitud extendida de RFC 9072), los atacantes pueden provocar una denegaci\u00f3n de servicio (fallo de aserci\u00f3n y reinicio del servicio, o lectura fuera de l\u00edmites). Esto es posible debido a comprobaciones de l\u00edmites inconsistentes que no tienen en cuenta la lectura de 3 bytes (en lugar de 2) en este caso 0xff. NOTA: este comportamiento ocurre en bgp_open_option_parse en el archivo bgp_open.c, una ubicaci\u00f3n diferente (con un vector de ataque diferente) en relaci\u00f3n con CVE-2022-40302."}], "lastModified": "2024-02-16T18:15:15.280", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:frrouting:frrouting:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "3CBDA653-317C-427D-AC6A-9AA434671061", "versionEndIncluding": "8.4"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "07B237A9-69A3-4A9C-9DA0-4E06BD37AE73"}, {"criteria": "cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "FA6FEEC2-9F11-4643-8827-749718254FED"}, {"criteria": "cpe:2.3:o:debian:debian_linux:12.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "46D69DCC-AE4D-4EA5-861C-D60951444C6C"}], "operator": "OR"}]}], "sourceIdentifier": "cve@mitre.org"}