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: 29%
VendorProductVersion
matrixolm
𝑥
≤ 3.2.16
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
olm
bullseye
ignored
trixie
ignored
bookworm
ignored
forky
vulnerable
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/