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.

Related CPE's

a

matrix

olm

Vulnerable

References

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

Weaknesses

134c704f-9b21-4f2e-91b3-4a467353bcc0

Secondary
CWE-327

CVSS impact metrics

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

4.3 · Medium

  • CVSS V3.1

  • CVSS V3.0

  • CVSS V2.0

Information

Source identifier

[email protected]

Vulnerability status

Analyzed

Published

2024-08-22T16:15:10.300

1 year ago

Last modified

2025-06-17T19:51:54.887

6 months ago