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

ubuntu
Calendar Grey September 15, 2023
Scroller Ubuntu
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

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
High
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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