Cryptographic Issues Affecting openssl package, versions [,0.9.8h)


Severity

Recommended
0.0
medium
0
10

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

Threat Intelligence

EPSS
0.64% (80th percentile)

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  • Snyk IDSNYK-UNMANAGED-OPENSSL-2318624
  • published14 Dec 2021
  • disclosed27 Jan 2012
  • creditUnknown

Introduced: 27 Jan 2012

CVE-2011-4354  (opens in a new tab)
CWE-310  (opens in a new tab)

How to fix?

Upgrade openssl to version 0.9.8h or higher.

Overview

Affected versions of this package are vulnerable to Cryptographic Issues crypto/bn/bn_nist.c in OpenSSL before 0.9.8h on 32-bit platforms, as used in stunnel and other products, in certain circumstances involving ECDH or ECDHE cipher suites, uses an incorrect modular reduction algorithm in its implementation of the P-256 and P-384 NIST elliptic curves, which allows remote attackers to obtain the private key of a TLS server via multiple handshake attempts.

References

CVSS Scores

version 3.1