GHSA-9ggc-845v-gcgv
matrix-sdk-crypto contains a log exposure of private key of the server-side key backup
Packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| crates.io | matrix-sdk-crypto | >= 0.7.0, < 0.7.1 | 0.7.1 |
Details
As written in the advisory (Markdown source, shown as plain text).
### Introduction
In Matrix, the server-side *key backup* stores encrypted copies of Matrix message keys. This facilitates key sharing between a user's devices and provides a redundant copy in case all devices are lost. The key backup uses asymmetric cryptography, with each server-side key backup assigned a unique public-private key pair.
### Impact
Due to a logic bug introduced in https://github.com/matrix-org/matrix-rust-sdk/pull/2961/commits/71136e44c03c79f80d6d1a2446673bc4d53a2067, the matrix-sdk-crypto crate version 0.7.0 will sometimes log the private part of the backup key pair to Rust debug logs (using the `tracing` crate).
### Patches
This issue has been resolved in matrix-sdk-crypto [version 0.7.1](https://github.com/matrix-org/matrix-rust-sdk/releases/tag/matrix-sdk-crypto-0.7.1).
### Workarounds
None.
### References
- [crates.io release](https://crates.io/crates/matrix-sdk-crypto/0.7.1)
### For more information
If you have any questions or comments about this advisory, please email us at [security at matrix.org](mailto:[email protected]).
References
External links from the advisory. They lead to third-party sites.
- https://github.com/matrix-org/matrix-rust-sdk/security/advisories/GHSA-9ggc-845v-gcgv
- https://nvd.nist.gov/vuln/detail/CVE-2024-34353
- https://github.com/matrix-org/matrix-rust-sdk/commit/71136e44c03c79f80d6d1a2446673bc4d53a2067
- https://github.com/matrix-org/matrix-rust-sdk/commit/fa10bbb5dd0f9120a51aa1854cec752e25790bb0
- https://github.com/matrix-org/matrix-rust-sdk
- https://github.com/matrix-org/matrix-rust-sdk/releases/tag/matrix-sdk-crypto-0.7.1