CVE-2020-25657
Published: 12 January 2021
Summary
CVE-2020-25657 is a medium-severity Covert Timing Channel (CWE-385) vulnerability in Redhat Enterprise Linux. Its CVSS base score is 5.9 (Medium).
Operationally, ranked in the top 45.7% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2020-18321
Vulnerability details
A flaw was found in all released versions of m2crypto, where they are vulnerable to Bleichenbacher timing attacks in the RSA decryption API via the timed processing of valid PKCS#1 v1.5 Ciphertext. The highest threat from this vulnerability is to…
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confidentiality.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Directly targets covert timing channels by requiring identification and bandwidth estimation, enabling mitigation that reduces or eliminates their usability.