Cryptographic Issues Affecting nss package, versions [,3.19]


Severity

Recommended
0.0
low
0
10

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

Threat Intelligence

EPSS
96.89% (100th percentile)

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-UNMANAGED-NSS-2384905
  • published14 Dec 2021
  • disclosed21 May 2015
  • creditUnknown

Introduced: 21 May 2015

CVE-2015-4000  (opens in a new tab)
CWE-310  (opens in a new tab)

How to fix?

There is no fixed version for nss.

Overview

Affected versions of this package are vulnerable to Cryptographic Issues. The TLS protocol 1.2 and earlier, when a DHE_EXPORT ciphersuite is enabled on a server but not on a client, does not properly convey a DHE_EXPORT choice, which allows man-in-the-middle attackers to conduct cipher-downgrade attacks by rewriting a ClientHello with DHE replaced by DHE_EXPORT and then rewriting a ServerHello with DHE_EXPORT replaced by DHE, aka the "Logjam" issue.

References

CVSS Scores

version 3.1