Information Exposure Through Discrepancy Affecting gnutls package, versions [,3.8.2)


Severity

Recommended
0.0
high
0
10

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

Threat Intelligence

EPSS
0.16% (53rd percentile)

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  • Snyk IDSNYK-UNMANAGED-GNUTLS-6094981
  • published29 Nov 2023
  • disclosed28 Nov 2023
  • creditHubert Kario

Introduced: 28 Nov 2023

CVE-2023-5981  (opens in a new tab)
CWE-203  (opens in a new tab)

How to fix?

Upgrade gnutls to version 3.8.2 or higher.

Overview

Affected versions of this package are vulnerable to Information Exposure Through Discrepancy due to the handling of malformed ciphertexts in RSA-PSK ClientKeyExchange. An attacker can exploit this discrepancy in response times to potentially reveal sensitive information by sending malformed ciphertexts (Marvin).

CVSS Base Scores

version 3.1