# CVE-2021-40491: inetutils-ftp: The ftp client in GNU Inetutils before 2.2 does not validate addresses returned by PASV/LSPV responses to make sure t...

CVE-2021-40491 is fixed in 11 products on 1 platform, first by inetutils-ftp 2:1.9.4-3ubuntu0.1+esm1, released September 2, 2021. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2021-40491
- Priority: Routine
- CVSS: n/a (Medium)
- EPSS: 0.0099
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Sep 2, 2021

## Description

The ftp client in GNU Inetutils before 2.2 does not validate addresses returned by PASV/LSPV responses to make sure they match the server address. This is similar to CVE-2020-8284 for curl.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | inetutils-ftp Ubuntu 18.04.6 LTS (bionic) | 2:1.9.4-3ubuntu0.1+esm1 | [inetutils-ftp 2:1.9.4-3ubuntu0.1+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-inetutils-ftp-2-1.9.4-3ubuntu0.1-esm1.md) | Sep 2, 2021 |
| Linux | inetutils-ftp Ubuntu 20.04 LTS (focal) | 2:1.9.4-11ubuntu0.1+esm1 | [inetutils-ftp 2:1.9.4-11ubuntu0.1+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-inetutils-ftp-2-1.9.4-11ubuntu0.1-esm1.md) | Sep 2, 2021 |
| Linux | inetutils-ftpd Ubuntu 18.04.6 LTS (bionic) | 2:1.9.4-3ubuntu0.1+esm1 | [inetutils-ftpd 2:1.9.4-3ubuntu0.1+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-inetutils-ftpd-2-1.9.4-3ubuntu0.1-esm1.md) | Sep 2, 2021 |
| Linux | inetutils-ftpd Ubuntu 20.04 LTS (focal) | 2:1.9.4-11ubuntu0.1+esm1 | [inetutils-ftpd 2:1.9.4-11ubuntu0.1+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-inetutils-ftpd-2-1.9.4-11ubuntu0.1-esm1.md) | Sep 2, 2021 |
| Linux | inetutils-inetd Ubuntu 18.04.6 LTS (bionic) | 2:1.9.4-3ubuntu0.1+esm1 | [inetutils-inetd 2:1.9.4-3ubuntu0.1+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-inetutils-inetd-2-1.9.4-3ubuntu0.1-esm1.md) | Sep 2, 2021 |
| Linux | inetutils-inetd Ubuntu 20.04 LTS (focal) | 2:1.9.4-11ubuntu0.1+esm1 | [inetutils-inetd 2:1.9.4-11ubuntu0.1+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-inetutils-inetd-2-1.9.4-11ubuntu0.1-esm1.md) | Sep 2, 2021 |
| Linux | inetutils-ping Ubuntu 18.04.6 LTS (bionic) | 2:1.9.4-3ubuntu0.1+esm1 | [inetutils-ping 2:1.9.4-3ubuntu0.1+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-inetutils-ping-2-1.9.4-3ubuntu0.1-esm1.md) | Sep 2, 2021 |
| Linux | inetutils-ping Ubuntu 20.04 LTS (focal) | 2:1.9.4-11ubuntu0.1+esm1 | [inetutils-ping 2:1.9.4-11ubuntu0.1+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-inetutils-ping-2-1.9.4-11ubuntu0.1-esm1.md) | Sep 2, 2021 |
| Linux | inetutils-syslogd Ubuntu 18.04.6 LTS (bionic) | 2:1.9.4-3ubuntu0.1+esm1 | [inetutils-syslogd 2:1.9.4-3ubuntu0.1+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-inetutils-syslogd-2-1.9.4-3ubuntu0.1-esm1.md) | Sep 2, 2021 |
| Linux | inetutils-syslogd Ubuntu 20.04 LTS (focal) | 2:1.9.4-11ubuntu0.1+esm1 | [inetutils-syslogd 2:1.9.4-11ubuntu0.1+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-inetutils-syslogd-2-1.9.4-11ubuntu0.1-esm1.md) | Sep 2, 2021 |
| Linux | inetutils-talk Ubuntu 18.04.6 LTS (bionic) | 2:1.9.4-3ubuntu0.1+esm1 | [inetutils-talk 2:1.9.4-3ubuntu0.1+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-inetutils-talk-2-1.9.4-3ubuntu0.1-esm1.md) | Sep 2, 2021 |
| Linux | inetutils-talk Ubuntu 20.04 LTS (focal) | 2:1.9.4-11ubuntu0.1+esm1 | [inetutils-talk 2:1.9.4-11ubuntu0.1+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-inetutils-talk-2-1.9.4-11ubuntu0.1-esm1.md) | Sep 2, 2021 |
| Linux | inetutils-talkd Ubuntu 18.04.6 LTS (bionic) | 2:1.9.4-3ubuntu0.1+esm1 | [inetutils-talkd 2:1.9.4-3ubuntu0.1+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-inetutils-talkd-2-1.9.4-3ubuntu0.1-esm1.md) | Sep 2, 2021 |
| Linux | inetutils-talkd Ubuntu 20.04 LTS (focal) | 2:1.9.4-11ubuntu0.1+esm1 | [inetutils-talkd 2:1.9.4-11ubuntu0.1+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-inetutils-talkd-2-1.9.4-11ubuntu0.1-esm1.md) | Sep 2, 2021 |
| Linux | inetutils-telnet Ubuntu 18.04.6 LTS (bionic) | 2:1.9.4-3ubuntu0.1+esm1 | [inetutils-telnet 2:1.9.4-3ubuntu0.1+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-inetutils-telnet-2-1.9.4-3ubuntu0.1-esm1.md) | Sep 2, 2021 |
| Linux | inetutils-telnet Ubuntu 20.04 LTS (focal) | 2:1.9.4-11ubuntu0.1+esm1 | [inetutils-telnet 2:1.9.4-11ubuntu0.1+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-inetutils-telnet-2-1.9.4-11ubuntu0.1-esm1.md) | Sep 2, 2021 |
| Linux | inetutils-telnetd Ubuntu 18.04.6 LTS (bionic) | 2:1.9.4-3ubuntu0.1+esm1 | [inetutils-telnetd 2:1.9.4-3ubuntu0.1+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-inetutils-telnetd-2-1.9.4-3ubuntu0.1-esm1.md) | Sep 2, 2021 |
| Linux | inetutils-telnetd Ubuntu 20.04 LTS (focal) | 2:1.9.4-11ubuntu0.1+esm1 | [inetutils-telnetd 2:1.9.4-11ubuntu0.1+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-inetutils-telnetd-2-1.9.4-11ubuntu0.1-esm1.md) | Sep 2, 2021 |
| Linux | inetutils-tools Ubuntu 18.04.6 LTS (bionic) | 2:1.9.4-3ubuntu0.1+esm1 | [inetutils-tools 2:1.9.4-3ubuntu0.1+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-inetutils-tools-2-1.9.4-3ubuntu0.1-esm1.md) | Sep 2, 2021 |
| Linux | inetutils-tools Ubuntu 20.04 LTS (focal) | 2:1.9.4-11ubuntu0.1+esm1 | [inetutils-tools 2:1.9.4-11ubuntu0.1+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-inetutils-tools-2-1.9.4-11ubuntu0.1-esm1.md) | Sep 2, 2021 |
| Linux | inetutils-traceroute Ubuntu 18.04.6 LTS (bionic) | 2:1.9.4-3ubuntu0.1+esm1 | [inetutils-traceroute 2:1.9.4-3ubuntu0.1+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-inetutils-traceroute-2-1.9.4-3ubuntu0.1-esm1.md) | Sep 2, 2021 |
| Linux | inetutils-traceroute Ubuntu 20.04 LTS (focal) | 2:1.9.4-11ubuntu0.1+esm1 | [inetutils-traceroute 2:1.9.4-11ubuntu0.1+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-inetutils-traceroute-2-1.9.4-11ubuntu0.1-esm1.md) | Sep 2, 2021 |

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