CVE-2024-45193

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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
4.3 MEDIUM
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
mitreCNA
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CISA-ADPADP
4.3 MEDIUM
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 27%
VendorProductVersion
matrixolm
𝑥
≤ 3.2.16
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
olm
bullseye
ignored
trixie
ignored
bookworm
ignored
sid
vulnerable
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
olm
plucky
needs-triage
oracular
ignored
noble
needs-triage
jammy
needs-triage
focal
needs-triage
bionic
needs-triage
Common Weakness Enumeration
References
https://gitlab.matrix.org/matrix-org/olm/
https://gitlab.matrix.org/matrix-org/olm/-/commit/6d4b5b07887821a95b144091c8497d09d377f985
https://news.ycombinator.com/item?id=41249371
https://soatok.blog/2024/08/14/security-issues-in-matrixs-olm-library/