Observable Timing Discrepancy Affecting wolfssl/wolfssl package, versions [,3.9.10)


Severity

Recommended
0.0
medium
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.08% (24th percentile)

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  • Snyk IDSNYK-UNMANAGED-WOLFSSLWOLFSSL-2369420
  • published12 Jan 2022
  • disclosed13 Dec 2016
  • creditUnknown

Introduced: 13 Dec 2016

CVE-2016-7440  (opens in a new tab)
CWE-208  (opens in a new tab)

How to fix?

Upgrade wolfssl/wolfssl to version 3.9.10 or higher.

Overview

Affected versions of this package are vulnerable to Observable Timing Discrepancy. The C software implementation of AES Encryption and Decryption in wolfSSL (formerly CyaSSL) before 3.9.10 makes it easier for local users to discover AES keys by leveraging cache-bank timing differences.

References

CVSS Base Scores

version 3.1