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Use After Free Affecting gnutls28 package, versions <3.6.13-2ubuntu1.6

low

Snyk CVSS

    Attack Complexity Low
    Confidentiality High
    Integrity High
    Availability High

    Threat Intelligence

    EPSS 1.09% (85th percentile)
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NVD
9.8 critical
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SUSE
7.4 high
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Red Hat
3.7 low

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  • Snyk ID SNYK-UBUNTU2004-GNUTLS28-1085477
  • published 13 Mar 2021
  • disclosed 12 Mar 2021
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Introduced: 12 Mar 2021

CVE-2021-20231 Open this link in a new tab
CWE-416 Open this link in a new tab

How to fix?

Upgrade Ubuntu:20.04 gnutls28 to version 3.6.13-2ubuntu1.6 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:20.04 relevant fixed versions and status.

A flaw was found in gnutls. A use after free issue in client sending key_share extension may lead to memory corruption and other consequences.

References