USN-5048-1: Inetutils vulnerability

Publication date

19 August 2021

Overview

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


Packages

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.

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
20.04 focal inetutils-telnetd –  2:1.9.4-11ubuntu0.1
18.04 bionic inetutils-telnetd –  2:1.9.4-3ubuntu0.1

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