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Ubuntu 23.04 Security Notice: 6375-1 atftp Denial of Service Vulnerability

ubuntu
Calendar Grey September 15, 2023
Dist Ubuntu Esm H88
A critical vulnerability in the atftp package on Ubuntu may allow remote attackers to trigger a denial of service. Users should apply patches urgently
atftp could be made to crash if it received specially crafted network traffic.

Summary

A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 23.04 - Ubuntu 22.04 LTS Summary: atftp could be made to crash if it received specially crafted network traffic. Software Description: - atftp: Advanced TFTP Server and Client Details: Florian Fainelli discovered that atftp did not properly manage requests made to a non-existent file, which could lead to a crash. A remote attacker could possibly use this issue to cause a denial of service.

Topics%20covered

Topics Covered

security advisory denial of service critical Ubuntu atftp network crash

Update Instructions

The problem can be corrected by updating your system to the following package versions: Ubuntu 23.04:   atftpd                          0.8.0-3build0.23.04.1 Ubuntu 22.04 LTS:   atftpd                          0.7.git20210915-4build1 In general, a standard system update will make all the necessary changes.

References

  https://ubuntu.com/security/notices/USN-6375-1

  https://bugs.launchpad.net/ubuntu/+source/atftp/+bug/1989816

Severity
critical
Lowest
Low
Medium
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Critical

Ubuntu Security Notice USN-6375-1

Topics%20covered

Topics Covered

security advisory denial of service critical Ubuntu atftp network crash

Package Information

  https://launchpad.net/ubuntu/+source/atftp/0.8.0-3build0.23.04.1 https://launchpad.net/ubuntu/+source/atftp/0.7.git20210915-4build1

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