Key Management Errors Affecting openssl package, versions [,1.0.2p)[1.1.0, 1.1.0i)


Severity

Recommended
0.0
high
0
10

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

Threat Intelligence

EPSS
5.23% (93rd percentile)

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  • Snyk IDSNYK-UNMANAGED-OPENSSL-2318763
  • published14 Dec 2021
  • disclosed12 Jun 2018
  • creditGuido Vranken

Introduced: 12 Jun 2018

CVE-2018-0732  (opens in a new tab)
CWE-320  (opens in a new tab)

How to fix?

Upgrade openssl to version 1.0.2p, 1.1.0i or higher.

Overview

Affected versions of this package are vulnerable to Key Management Errors. During key agreement in a TLS handshake using a DH(E) based ciphersuite a malicious server can send a very large prime value to the client. This will cause the client to spend an unreasonably long period of time generating a key for this prime resulting in a hang until the client has finished. This could be exploited in a Denial Of Service attack.

CVSS Scores

version 3.1