Vulnerabilities

RUSTSEC-2023-0071

Marvin Attack: potential key recovery through timing sidechannels

Impact

Due to a non-constant-time implementation, information about the private key is leaked through timing information which is observable over the network. An attacker may be able to use that information to recover the key.

Patches

No patch is yet available, however work is underway to migrate to a fully constant-time implementation.

Workarounds

The only currently available workaround is to avoid using the rsa crate in settings where attackers are able to observe timing information, e.g. local use on a non-compromised computer is fine.

References

This vulnerability was discovered as part of the "Marvin Attack", which revealed several implementations of RSA including OpenSSL had not properly mitigated timing sidechannel attacks.

Warnings

RUSTSEC-2021-0065

anymap is unmaintained.

The anymap crate does not appear to be maintained, and the most recent
published version 0.12.1 includes a soundness bug. This has been
fixed a few years ago, but
was never released.

RUSTSEC-2022-0081

json is unmaintained

Last release was almost 3 years ago.

The maintainer is unresponsive with outstanding issues.

One of the outstanding issues include a possible soundness issue.

Possible Alternative(s)

The below list has not been vetted in any way and may or may not contain alternatives;

• jzon maintained fork of json
• serde_json
• json-deserializer
• simd-json

RUSTSEC-2020-0168

mach is unmaintained

Last release was almost 4 years ago.

Maintainer(s) seem to be completely unreachable.

Possible Alternative(s)

These may or may not be suitable alternatives and have not been vetted in any way;

• mach2 - direct fork