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Ubuntu 16.04 ESM: USN-5750-1 Critical GnuTLS Denial Of Service

ubuntu
Calendar Grey November 30, 2022
Dist Ubuntu Esm H88
A discovered security flaw in GnuTLS may lead to service interruption due to specially designed network packets in Ubuntu 16.04 ESM.
GnuTLS could be made to crash if it received specially crafted network traffic from an authenticated client.

Summary

GnuTLS could be made to crash if it received specially crafted network

traffic from an authenticated client.

Software Description:

- gnutls28: GNU TLS library

Details:

It was discovered that GnuTLS incorrectly handled certain memory

operations. A remote attacker could possibly use this issue to cause GnuTLS

to crash, resulting in a denial of service.

Topics%20covered

Topics Covered

security advisory denial of service critical Ubuntu gnutls

Update Instructions

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

Ubuntu 16.04 ESM:
  libgnutls30                     3.4.10-4ubuntu1.9+esm1

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

References

https://ubuntu.com/security/notices/USN-5750-1

CVE-2021-4209

Severity
critical
Lowest
Low
Medium
High
Critical

November 30, 2022

Topics%20covered

Topics Covered

security advisory denial of service critical Ubuntu gnutls

Package Information

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