Covert Timing Channel The advisory has been revoked - it doesn't affect any version of package openssl (opens in a new tab)
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.
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk IDSNYK-RUBY-OPENSSL-8620985
- published13 Jan 2025
- disclosed9 Jan 2025
- creditAlicja Kario
Introduced: 9 Jan 2025
CVE-2025-0306 (opens in a new tab)Amendment
This was deemed not a vulnerability.
Overview
openssl is a package that wraps the OpenSSL library.
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.