Insufficient Verification of Data Authenticity Affecting gnutls package, versions <0:3.6.8-11.el8_2


Severity

Recommended
0.0
high
0
10

Based on CentOS security rating

    Threat Intelligence

    EPSS
    0.35% (73rd percentile)

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  • Snyk ID SNYK-CENTOS8-GNUTLS-2042240
  • published 26 Jul 2021
  • disclosed 3 Jun 2020

How to fix?

Upgrade Centos:8 gnutls to version 0:3.6.8-11.el8_2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream gnutls package and not the gnutls package as distributed by Centos. See How to fix? for Centos:8 relevant fixed versions and status.

GnuTLS 3.6.x before 3.6.14 uses incorrect cryptography for encrypting a session ticket (a loss of confidentiality in TLS 1.2, and an authentication bypass in TLS 1.3). The earliest affected version is 3.6.4 (2018-09-24) because of an error in a 2018-09-18 commit. Until the first key rotation, the TLS server always uses wrong data in place of an encryption key derived from an application.

CVSS Scores

version 3.1
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NVD

7.4 high
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    High
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    High
  • Integrity (I)
    High
  • Availability (A)
    None
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Red Hat

7.4 high
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SUSE

7.4 high