Vulnerability · Published Aug 22, 2024 · Assigned by mitre
CVE-2024-45193
Medium 4.3
In plain English
A medium-severity broken cryptography in the olm package (Debian). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 22% of all known vulnerabilities).
Severity (CVSS 3.1)4.3Medium
Exploit odds (30 days)0.3%top 77.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | olm | no fix listed | DEBIAN-CVE-2024-45193 |
| Debian:13 | olm | no fix listed | DEBIAN-CVE-2024-45193 |
| Debian:14 | olm | no fix listed | DEBIAN-CVE-2024-45193 |
| Ubuntu:22.04:LTS | olm | no fix listed | UBUNTU-CVE-2024-45193 |
| Ubuntu:24.04:LTS | olm | no fix listed | UBUNTU-CVE-2024-45193 |
| Ubuntu:25.10 | olm | no fix listed | UBUNTU-CVE-2024-45193 |
| Ubuntu:26.04:LTS | olm | no fix listed | UBUNTU-CVE-2024-45193 |
| Ubuntu:26.10 | olm | no fix listed | UBUNTU-CVE-2024-45193 |
Affected products (as reported)
Weakness: CWE-327 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N