Covert Timing Channel Affecting ruby package, versions [0,]
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UNMANAGED-RUBY-8620986
- published13 Jan 2025
- disclosed9 Jan 2025
- creditAlicja Kario
Introduced: 9 Jan 2025
NewCVE-2025-0306 (opens in a new tab)How to fix?
There is no fixed version for ruby.
Overview
Affected versions of this package are vulnerable to Covert Timing Channel through the decryption process. An attacker can decrypt messages or forge signatures by exchanging a large number of messages with the vulnerable service (Marvin Attack).
Workaround
This vulnerability can be mitigated by avoiding the use of methods with PKCS#1v1.5 padding in network contexts, ensuring that any calls perform OAEP decryption only, and not supporting PKCS#1v1.5 encryption padding.