CVE-2023-24609

Matrix SSL 4.x through 4.6.0 and Rambus TLS Toolkit have a length-subtraction integer overflow for Client Hello Pre-Shared Key extension parsing in the TLS 1.3 server. An attacked device calculates an SHA-2 hash over at least 65 KB (in RAM). With a large number of crafted TLS messages, the CPU becomes heavily loaded. This occurs in tls13VerifyBinder and tls13TranscriptHashUpdate.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://www.rambus.com/security/software-protocols/tls-toolkit/	Product
https://www.telekom.com/en/company/data-privacy-and-security/news/advisories-504842	Exploit Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:matrixssl:matrixssl:*:*:*:*:*:*:*:*

Configuration 2 (hide)

cpe:2.3:a:rambus:tls_toolkit:-:*:*:*:*:*:*:*

History

03 Jan 2024, 20:34

Type	Values Removed	Values Added
CPE		cpe:2.3:a:rambus:tls_toolkit:-:::::::* cpe:2.3:a:matrixssl:matrixssl::::::::
CWE		CWE-190
References	~~() https://www.telekom.com/en/company/data-privacy-and-security/news/advisories-504842 -~~	() https://www.telekom.com/en/company/data-privacy-and-security/news/advisories-504842 - Exploit, Third Party Advisory
References	~~() https://www.rambus.com/security/software-protocols/tls-toolkit/ -~~	() https://www.rambus.com/security/software-protocols/tls-toolkit/ - Product
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 7.5

22 Dec 2023, 04:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2023-12-22 04:15

Updated : 2024-02-05 00:22

NVD link : CVE-2023-24609

Mitre link : CVE-2023-24609

CVE.ORG link : CVE-2023-24609

JSON object : View

Products Affected

matrixssl

matrixssl

rambus

tls_toolkit

CWE

CWE-190

Integer Overflow or Wraparound

{"id": "CVE-2023-24609", "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 3.9}]}, "published": "2023-12-22T04:15:08.673", "references": [{"url": "https://www.rambus.com/security/software-protocols/tls-toolkit/", "tags": ["Product"], "source": "cve@mitre.org"}, {"url": "https://www.telekom.com/en/company/data-privacy-and-security/news/advisories-504842", "tags": ["Exploit", "Third Party Advisory"], "source": "cve@mitre.org"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-190"}]}], "descriptions": [{"lang": "en", "value": "Matrix SSL 4.x through 4.6.0 and Rambus TLS Toolkit have a length-subtraction integer overflow for Client Hello Pre-Shared Key extension parsing in the TLS 1.3 server. An attacked device calculates an SHA-2 hash over at least 65 KB (in RAM). With a large number of crafted TLS messages, the CPU becomes heavily loaded. This occurs in tls13VerifyBinder and tls13TranscriptHashUpdate."}, {"lang": "es", "value": "Matrix SSL 4.x a 4.6.0 y Rambus TLS Toolkit tienen un desbordamiento de enteros de sustracci\u00f3n de longitud para el an\u00e1lisis de la extensi\u00f3n Client Hello Pre-Shared Key en el servidor TLS 1.3. Un dispositivo atacado calcula un hash SHA-2 en al menos 65 KB (en RAM). Con una gran cantidad de mensajes TLS manipulados, la CPU se carga mucho. Esto ocurre en tls13VerifyBinder y tls13TranscriptHashUpdate."}], "lastModified": "2024-01-03T20:34:37.670", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:matrixssl:matrixssl:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "69E7A834-680C-47E3-AC27-90C26E8C607F", "versionEndIncluding": "4.6.0", "versionStartIncluding": "4.0.0"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:rambus:tls_toolkit:-:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "4ECD2764-A6E2-4A74-9783-779F05DAAE3F"}], "operator": "OR"}]}], "sourceIdentifier": "cve@mitre.org"}