utility.c in telnetd in netkit telnet through 0.17 allows remote attackers to execute arbitrary code via short writes or urgent data, because of a buffer overflow involving the netclear and nextitem functions.
CVSS Details
- CVSS 3.1 Base Score: 9.8
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon Linux Ami 2 | — | Upgrade telnetUpgrade telnet-serverUpgrade telnet-debuginfo | May 8, 2020 | Mar 6, 2020 |
| Amazon_linux | — | Upgrade telnet | Jul 2, 2020 | Mar 6, 2020 |
| Arch Linux | — | Upgrade to the latest version of Arch Linux | Jul 11, 2025 | Mar 6, 2020 |
| Arista Eos | — | Upgrade to a remediated EOS version or apply the provided hotfix | Sep 4, 2024 | May 13, 2020 |
| Centos_linux | — | Upgrade telnet-debuginfoUpgrade krb5-appl-serversUpgrade krb5-appl-debuginfoUpgrade krb5-appl-clientsUpgrade telnetUpgrade telnet-server-debuginfoUpgrade telnet-debugsourceUpgrade telnet-server | Apr 7, 2020 | Mar 6, 2020 |
| Cisco Xe | — | Upgrade to the latest version of Cisco IOS XE | Jun 25, 2020 | Mar 6, 2020 |
| Debian | — | Upgrade netkit-telnet-sslUpgrade inetutilsUpgrade netkit-telnet | Apr 16, 2020 | Mar 6, 2020 |
| Huawei Euleros 2_0_sp2 | — | Upgrade telnet-serverUpgrade telnet | Nov 3, 2020 | Mar 6, 2020 |
| Huawei Euleros 2_0_sp3 | — | Upgrade telnetUpgrade telnet-server | Sep 28, 2020 | Mar 6, 2020 |
| Huawei Euleros 2_0_sp5 | — | Upgrade telnetUpgrade telnet-server | Jun 3, 2020 | Mar 6, 2020 |
| Huawei Euleros 2_0_sp8 | — | Upgrade telnet-serverUpgrade telnet | May 27, 2020 | Mar 6, 2020 |
| Oracle_linux | — | Upgrade telnet-serverUpgrade telnetUpgrade krb5-appl-serversUpgrade krb5-appl-clients | Apr 8, 2020 | Feb 28, 2020 |
| Panos | — | Update PAN-OS 9.0 to the latest workaround for your deviceUpdate PAN-OS 8.1 to the latest workaround for your deviceUpdate PAN-OS 9.1 to the latest workaround for your deviceUpdate PAN-OS 10.0 to the latest workaround for your device | Sep 10, 2021 | Mar 6, 2020 |
| Redhat_linux | — | Upgrade telnet-serverUpgrade telnet-server-debuginfoUpgrade telnet-debugsourceNo solution existsUpgrade telnetUpgrade telnet-debuginfo | Apr 7, 2020 | Mar 6, 2020 |
| Suse | — | Upgrade krb5-appl-serversUpgrade krb5-appl-clients | Jun 6, 2020 | Mar 6, 2020 |
| Ubuntu | — | Upgrade inetutils-telnet (Ubuntu Pro)Upgrade inetutils-traceroute (Ubuntu Pro)Upgrade inetutils-telnetd (Ubuntu Pro)Upgrade inetutils-telnetdUpgrade inetutils-inetd (Ubuntu Pro)Upgrade inetutils-ping (Ubuntu Pro)Upgrade inetutils-talk (Ubuntu Pro)Upgrade inetutils-ftpd (Ubuntu Pro)Upgrade inetutils-syslogd (Ubuntu Pro)Upgrade inetutils-ftp (Ubuntu Pro)Upgrade inetutils-tools (Ubuntu Pro) | Aug 21, 2021 | Mar 6, 2020 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Feb 9, 2026 | Mar 6, 2020 |
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