Bug 2252010 (CVE-2023-49092)

Summary: CVE-2023-49092 RustCrypto/RSA: Marvin Attack - potential key recovery through timing sidechannels
Product: [Other] Security Response Reporter: Avinash Hanwate <ahanwate>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
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OS: Linux   
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Bug Depends On: 2252011    
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Description Avinash Hanwate 2023-11-29 01:49:35 UTC 
RustCrypto/RSA is a portable RSA implementation in pure Rust. 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. There is currently no fix available. As a workaround, avoid using the RSA crate in settings where attackers are able to observe timing information, e.g. local use on a non-compromised computer.

https://github.com/RustCrypto/RSA/issues/19#issuecomment-1822995643
https://github.com/RustCrypto/RSA/security/advisories/GHSA-c38w-74pg-36hr
Comment 1 Avinash Hanwate 2023-11-29 01:49:52 UTC 
Created rust-rsa tracking bugs for this issue:

Affects: fedora-all [bug 2252011]