User Enumeration Affecting nettle package, versions [,3.4.1)


Severity

Recommended
0.0
medium
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
1.5% (71st 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-NETTLE-2318987
  • published14 Dec 2021
  • disclosed3 Dec 2018
  • creditUnknown

Introduced: 3 Dec 2018

CVE-2018-16869  (opens in a new tab)
CWE-203  (opens in a new tab)

How to fix?

Upgrade nettle to version 3.4.1 or higher.

Overview

Affected versions of this package are vulnerable to User Enumeration. A Bleichenbacher type side-channel based padding oracle attack was found in the way nettle handles endian conversion of RSA decrypted PKCS#1 v1.5 data. An attacker who is able to run a process on the same physical core as the victim process, could use this flaw extract plaintext or in some cases downgrade any TLS connections to a vulnerable server.

CVSS Base Scores

version 3.1