Observable Timing Discrepancy Affecting rsa package, versions *


Severity

Recommended
0.0
high
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.13% (50th percentile)

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  • Snyk IDSNYK-RUST-RSA-6092045
  • published29 Nov 2023
  • disclosed28 Nov 2023
  • creditHubert Kario

Introduced: 28 Nov 2023

CVE-2023-49092  (opens in a new tab)
CWE-203  (opens in a new tab)

How to fix?

There is no fixed version for rsa.

Overview

Affected versions of this package are vulnerable to Observable Timing Discrepancy. 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 (Marvin).

Workaround

This vulnerability can be mitigated by avoiding using the rsa crate in settings where attackers are able to observe timing information.

CVSS Scores

version 3.1