Homepage
About Snyk

NULL Pointer Dereference Affecting gnutls28 package, versions <3.4.10-4ubuntu1.9+esm1

low

Snyk CVSS

    Attack Complexity Low
    Availability High

    Threat Intelligence

    EPSS 0.21% (59th percentile)
Expand this section
NVD
6.5 medium
Expand this section
SUSE
6.5 medium
Expand this section
Red Hat
6.5 medium

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 ID SNYK-UBUNTU1604-GNUTLS28-2412682
  • published 24 Feb 2022
  • disclosed 24 Aug 2022
Report a new vulnerability Found a mistake?

Introduced: 24 Feb 2022

CVE-2021-4209 Open this link in a new tab
CWE-476 Open this link in a new tab

How to fix?

Upgrade Ubuntu:16.04 gnutls28 to version 3.4.10-4ubuntu1.9+esm1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream gnutls28 package and not the gnutls28 package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

A NULL pointer dereference flaw was found in GnuTLS. As Nettle's hash update functions internally call memcpy, providing zero-length input may cause undefined behavior. This flaw leads to a denial of service after authentication in rare circumstances.