CVE-2024-45193

MEDIUM EPSS 20.1%
Published Aug 22, 20241y ago · Modified Jun 17, 20262w ago
4.3 CVSS 3.1
Medium
Find Similar
Published Aug 22, 2024 1y ago
Last Modified Jun 17, 2026 2w ago

Description

An issue was discovered in Matrix libolm through 3.2.16. There is Ed25519 signature malleability due to lack of validation criteria (does not ensure that S < n). This refers to the libolm implementation of Olm. NOTE: This vulnerability only affects products that are no longer supported by the maintainer.

CVSS Details

Base Score
4.3
Exploitability
2.8
Impact
1.4
Vector string
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity Low
Availability None

Threat Intelligence

EPSS Exploit Probability
20.1% percentile
Exploit & Patch Status
Public Exploit Known
Patch Available

Weaknesses 1

CWE-327

Affected Products 1

VendorProductVersionRange
matrixolm* ≤3.2.16

References 4

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

Remediation

  • gitlab.matrix.org https://gitlab.matrix.org/matrix-org/olm/-/commit/6d4b5b07887821a95b144091c8497d09d377f985
    Patch