CVE-2024-45191

An issue was discovered in Matrix libolm through 3.2.16. The AES implementation is vulnerable to cache-timing attacks due to use of S-boxes. This is related to software that uses a lookup table for the SubWord step. This refers to the libolm implementation of Olm. NOTE: This vulnerability only affects products that are no longer supported by the maintainer.

CVSS v3 5.3 MEDIUM

5.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.6 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://gitlab.matrix.org/matrix-org/olm/	Product
https://gitlab.matrix.org/matrix-org/olm/-/commit/6d4b5b07887821a95b144091c8497d09d377f985	Patch
https://news.ycombinator.com/item?id=41249371	Issue Tracking
https://soatok.blog/2024/08/14/security-issues-in-matrixs-olm-library/	Exploit

Configurations

Configuration 1 (hide)

cpe:2.3:a:matrix:olm:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2024-08-22 16:15

Updated : 2025-06-17 20:03

NVD link : CVE-2024-45191

Mitre link : CVE-2024-45191

CVE.ORG link : CVE-2024-45191

JSON object : View

Products Affected

matrix

olm

CWE

CWE-208

Observable Timing Discrepancy

{"id": "CVE-2024-45191", "cveTags": [{"tags": ["unsupported-when-assigned"], "sourceIdentifier": "[email protected]"}], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.3, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 1.6}]}, "published": "2024-08-22T16:15:10.120", "references": [{"url": "https://gitlab.matrix.org/matrix-org/olm/", "tags": ["Product"], "source": "[email protected]"}, {"url": "https://gitlab.matrix.org/matrix-org/olm/-/commit/6d4b5b07887821a95b144091c8497d09d377f985", "tags": ["Patch"], "source": "[email protected]"}, {"url": "https://news.ycombinator.com/item?id=41249371", "tags": ["Issue Tracking"], "source": "[email protected]"}, {"url": "https://soatok.blog/2024/08/14/security-issues-in-matrixs-olm-library/", "tags": ["Exploit"], "source": "[email protected]"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "description": [{"lang": "en", "value": "CWE-208"}]}], "descriptions": [{"lang": "en", "value": "An issue was discovered in Matrix libolm through 3.2.16. The AES implementation is vulnerable to cache-timing attacks due to use of S-boxes. This is related to software that uses a lookup table for the SubWord step. This refers to the libolm implementation of Olm. NOTE: This vulnerability only affects products that are no longer supported by the maintainer."}, {"lang": "es", "value": "Se descubri\u00f3 un problema en Matrix libolm (tambi\u00e9n conocido como Olm) hasta la versi\u00f3n 3.2.16. La implementaci\u00f3n de AES es vulnerable a ataques de sincronizaci\u00f3n de cach\u00e9 debido al uso de S-boxes. Esto est\u00e1 relacionado con el software que utiliza una tabla de b\u00fasqueda para el paso SubWord. NOTA: Esta vulnerabilidad solo afecta a productos que ya no son compatibles con el fabricante."}], "lastModified": "2025-06-17T20:03:24.350", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:matrix:olm:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C7B17FB9-0BA5-45F7-BC70-42077F48B4B9", "versionEndIncluding": "3.2.16"}], "operator": "OR"}]}], "sourceIdentifier": "[email protected]"}