Advisory Published

USN-5328-1: OpenSSL vulnerability

First published: Tue Mar 15 2022(Updated: )

Tavis Ormandy discovered that OpenSSL incorrectly parsed certain certificates. A remote attacker could possibly use this issue to cause OpenSSH to stop responding, resulting in a denial of service.

Affected SoftwareAffected VersionHow to fix
All of
ubuntu/libssl1.1<1.1.1l-1ubuntu1.2
1.1.1l-1ubuntu1.2
=21.10
All of
ubuntu/libssl1.1<1.1.1f-1ubuntu2.12
1.1.1f-1ubuntu2.12
=20.04
All of
ubuntu/libssl1.0.0<1.0.2n-1ubuntu5.8
1.0.2n-1ubuntu5.8
=18.04
All of
ubuntu/libssl1.1<1.1.1-1ubuntu2.1~18.04.15
1.1.1-1ubuntu2.1~18.04.15
=18.04

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Child vulnerabilities

(Contains the following vulnerabilities)

Frequently Asked Questions

  • What is the vulnerability ID of this OpenSSL vulnerability?

    The vulnerability ID is CVE-2022-0778.

  • How can a remote attacker exploit CVE-2022-0778?

    A remote attacker could exploit this vulnerability by using specially crafted certificates to cause OpenSSH to stop responding, resulting in a denial of service.

  • Which versions of libssl1.1 are affected by this vulnerability?

    The affected versions are libssl1.1 versions 1.1.1l-1ubuntu1.2, 1.1.1f-1ubuntu2.12, and 1.1.1-1ubuntu2.1~18.04.15.

  • Which versions of libssl1.0.0 are affected by this vulnerability?

    The affected version is libssl1.0.0 version 1.0.2n-1ubuntu5.8.

  • How can I fix the OpenSSL vulnerability?

    To fix the vulnerability, you should update libssl1.1 to the recommended versions: 1.1.1l-1ubuntu1.2, 1.1.1f-1ubuntu2.12, or 1.1.1-1ubuntu2.1~18.04.15. Additionally, update libssl1.0.0 to version 1.0.2n-1ubuntu5.8.

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