Impact

Versions of the matrix-sdk-crypto Rust crate before 0.8.0 lack a dedicated mechanism to notify that a user's cryptographic identity has changed from a verified to an unverified one, which could cause client applications relying on the SDK to overlook such changes.

Patches

matrix-sdk-crypto 0.8.0 adds a new VerificationLevel::VerificationViolation enum variant which indicates that a previously verified identity has been changed.

References

• Patch: https://github.com/matrix-org/matrix-rust-sdk/pull/3795

• https://github.com/matrix-org/matrix-rust-sdk/security/advisories/GHSA-r5vf-wf4h-82gg
• https://github.com/matrix-org/matrix-rust-sdk/pull/3795
• https://nvd.nist.gov/vuln/detail/CVE-2024-52813
• https://rustsec.org/advisories/RUSTSEC-2024-0434.html
• https://github.com/advisories/GHSA-r5vf-wf4h-82gg