1. Ubuntu Security Notices
  2. USN-5029-1

USN-5029-1: GnuTLS vulnerabilities

Publication date

2 August 2021

Overview

Several security issues were fixed in GnuTLS.

Releases

Packages

Details

It was discovered that GnuTLS incorrectly handled sending certain
extensions when being used as a client. A remote attacker could use this
issue to cause GnuTLS to crash, resulting in a denial of service, or
possibly execute arbitrary code.

It was discovered that GnuTLS incorrectly handled sending certain
extensions when being used as a client. A remote attacker could use this
issue to cause GnuTLS to crash, resulting in a denial of service, or
possibly execute arbitrary code.

Update instructions

In general, a standard system update will make all the necessary changes.

Learn more about how to get the fixes.

The problem can be corrected by updating your system to the following package versions:

Ubuntu Release Package Version
20.04 focal libgnutls30 –  3.6.13-2ubuntu1.6

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References

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