1. Ubuntu Security Notices
  2. USN-5048-2

USN-5048-2: Inetutils vulnerability

Publication date

20 August 2021

Overview

Inetutils could be made to crash if it received specially crafted input.

Releases

Packages

Details

USN-5048-1 fixed a vulnerability in Inetutils for Ubuntu 18.04 LTS and Ubuntu
20.04 LTS. This update provides the corresponding fixes for Ubuntu 16.04 ESM.

Original advisory details:

It was discovered that Inetutils telnet server allows remote attackers to
execute arbitrary code via short writes or urgent data. An attacker could use
this vulnerability to cause a DoS or possibly execute arbitrary code.

USN-5048-1 fixed a vulnerability in Inetutils for Ubuntu 18.04 LTS and Ubuntu
20.04 LTS. This update provides the corresponding fixes for Ubuntu 16.04 ESM.

Original advisory details:

It was discovered that Inetutils telnet server allows remote attackers to
execute arbitrary code via short writes or urgent data. An attacker could use
this vulnerability to cause a DoS or possibly execute arbitrary code.

Update instructions

After a standard system update you need to restart Inetutils telnetd to 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
16.04 xenial inetutils-telnetd –  2:1.9.4-1ubuntu0.1~esm1  

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References

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