[USN-7781-1] Inetutils vulnerabilities

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==========================================================================
Ubuntu Security Notice USN-7781-1
September 28, 2025

inetutils vulnerabilities
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS

Summary:

Several security issues were fixed in Inetutils.

Software Description:
- inetutils: Collection of common network programs

Details:

Matthew Hickey discovered that Inetutils did not correctly handle certain
escape characters. An attacker could possibly use this issue to cause a
denial of service. (CVE-2019-0053)

It was discovered that Inetutils did not correctly handle certain memory
operations. An attacker could possibly use this issue to execute arbitrary
code. This issue only affected Ubuntu 14.04 LTS. (CVE-2020-10188)

It was discovered that Inetutils did not correctly handle certain memory
operations. An attacker could possibly use this issue to cause a denial of
service. (CVE-2022-39028)

It was discovered that Inetutils did not check the return values of set*id
functions. An attacker could possibly use this issue to escalate their
privileges. (CVE-2023-40303)

Update instructions:

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

Ubuntu 20.04 LTS
  inetutils-ftp                   2:1.9.4-11ubuntu0.2+esm1
                                  Available with Ubuntu Pro
  inetutils-ftpd                  2:1.9.4-11ubuntu0.2+esm1
                                  Available with Ubuntu Pro
  inetutils-inetd                 2:1.9.4-11ubuntu0.2+esm1
                                  Available with Ubuntu Pro
  inetutils-ping                  2:1.9.4-11ubuntu0.2+esm1
                                  Available with Ubuntu Pro
  inetutils-syslogd               2:1.9.4-11ubuntu0.2+esm1
                                  Available with Ubuntu Pro
  inetutils-talk                  2:1.9.4-11ubuntu0.2+esm1
                                  Available with Ubuntu Pro
  inetutils-telnet                2:1.9.4-11ubuntu0.2+esm1
                                  Available with Ubuntu Pro
  inetutils-tools                 2:1.9.4-11ubuntu0.2+esm1
                                  Available with Ubuntu Pro
  inetutils-traceroute            2:1.9.4-11ubuntu0.2+esm1
                                  Available with Ubuntu Pro

Ubuntu 18.04 LTS
  inetutils-ftp                   2:1.9.4-3ubuntu0.1+esm2
                                  Available with Ubuntu Pro
  inetutils-ftpd                  2:1.9.4-3ubuntu0.1+esm2
                                  Available with Ubuntu Pro
  inetutils-inetd                 2:1.9.4-3ubuntu0.1+esm2
                                  Available with Ubuntu Pro
  inetutils-ping                  2:1.9.4-3ubuntu0.1+esm2
                                  Available with Ubuntu Pro
  inetutils-syslogd               2:1.9.4-3ubuntu0.1+esm2
                                  Available with Ubuntu Pro
  inetutils-talk                  2:1.9.4-3ubuntu0.1+esm2
                                  Available with Ubuntu Pro
  inetutils-telnet                2:1.9.4-3ubuntu0.1+esm2
                                  Available with Ubuntu Pro
  inetutils-tools                 2:1.9.4-3ubuntu0.1+esm2
                                  Available with Ubuntu Pro
  inetutils-traceroute            2:1.9.4-3ubuntu0.1+esm2
                                  Available with Ubuntu Pro

Ubuntu 16.04 LTS
  inetutils-ftp                   2:1.9.4-1ubuntu0.1~esm3
                                  Available with Ubuntu Pro
  inetutils-ftpd                  2:1.9.4-1ubuntu0.1~esm3
                                  Available with Ubuntu Pro
  inetutils-inetd                 2:1.9.4-1ubuntu0.1~esm3
                                  Available with Ubuntu Pro
  inetutils-ping                  2:1.9.4-1ubuntu0.1~esm3
                                  Available with Ubuntu Pro
  inetutils-syslogd               2:1.9.4-1ubuntu0.1~esm3
                                  Available with Ubuntu Pro
  inetutils-talk                  2:1.9.4-1ubuntu0.1~esm3
                                  Available with Ubuntu Pro
  inetutils-telnet                2:1.9.4-1ubuntu0.1~esm3
                                  Available with Ubuntu Pro
  inetutils-tools                 2:1.9.4-1ubuntu0.1~esm3
                                  Available with Ubuntu Pro
  inetutils-traceroute            2:1.9.4-1ubuntu0.1~esm3
                                  Available with Ubuntu Pro

Ubuntu 14.04 LTS
  inetutils-ftp                   2:1.9.2-1ubuntu0.1~esm2
                                  Available with Ubuntu Pro
  inetutils-ftpd                  2:1.9.2-1ubuntu0.1~esm2
                                  Available with Ubuntu Pro
  inetutils-inetd                 2:1.9.2-1ubuntu0.1~esm2
                                  Available with Ubuntu Pro
  inetutils-ping                  2:1.9.2-1ubuntu0.1~esm2
                                  Available with Ubuntu Pro
  inetutils-syslogd               2:1.9.2-1ubuntu0.1~esm2
                                  Available with Ubuntu Pro
  inetutils-talk                  2:1.9.2-1ubuntu0.1~esm2
                                  Available with Ubuntu Pro
  inetutils-telnet                2:1.9.2-1ubuntu0.1~esm2
                                  Available with Ubuntu Pro
  inetutils-tools                 2:1.9.2-1ubuntu0.1~esm2
                                  Available with Ubuntu Pro
  inetutils-traceroute            2:1.9.2-1ubuntu0.1~esm2
                                  Available with Ubuntu Pro

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

References:
  https://ubuntu.com/security/notices/USN-7781-1
  CVE-2019-0053, CVE-2020-10188, CVE-2022-39028, CVE-2023-40303
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