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 | amazon-linux-ami-2-upgrade-telnetamazon-linux-ami-2-upgrade-telnet-debuginfoamazon-linux-ami-2-upgrade-telnet-server | May 8, 2020 | Mar 6, 2020 | |
| Amazon_linux | — | amazon-linux-upgrade-telnet | Jul 2, 2020 | Mar 6, 2020 |
| Arch Linux | arch-linux-upgrade-latest | Jul 11, 2025 | Mar 6, 2020 | |
| Centos_linux | — | centos-upgrade-krb5-appl-clientscentos-upgrade-krb5-appl-debuginfocentos-upgrade-krb5-appl-serverscentos-upgrade-telnetcentos-upgrade-telnet-debuginfocentos-upgrade-telnet-debugsourcecentos-upgrade-telnet-servercentos-upgrade-telnet-server-debuginfo | Apr 7, 2020 | Mar 6, 2020 |
| Cisco Xe | cisco-xe-upgrade-latest | Jun 25, 2020 | Mar 6, 2020 | |
| Debian | debian-upgrade-inetutilsdebian-upgrade-netkit-telnetdebian-upgrade-netkit-telnet-ssl | Apr 16, 2020 | Mar 6, 2020 | |
| Huawei Euleros 2_0_sp2 | huawei-euleros-2_0_sp2-upgrade-telnethuawei-euleros-2_0_sp2-upgrade-telnet-server | Nov 3, 2020 | Mar 6, 2020 | |
| Huawei Euleros 2_0_sp3 | huawei-euleros-2_0_sp3-upgrade-telnethuawei-euleros-2_0_sp3-upgrade-telnet-server | Sep 28, 2020 | Mar 6, 2020 | |
| Huawei Euleros 2_0_sp5 | huawei-euleros-2_0_sp5-upgrade-telnethuawei-euleros-2_0_sp5-upgrade-telnet-server | Jun 3, 2020 | Mar 6, 2020 | |
| Huawei Euleros 2_0_sp8 | huawei-euleros-2_0_sp8-upgrade-telnethuawei-euleros-2_0_sp8-upgrade-telnet-server | May 27, 2020 | Mar 6, 2020 | |
| Oracle_linux | — | oracle-linux-upgrade-krb5-appl-clientsoracle-linux-upgrade-krb5-appl-serversoracle-linux-upgrade-telnetoracle-linux-upgrade-telnet-server | Apr 8, 2020 | Feb 28, 2020 |
| Panos | palo-alto-networks-pan-os-upgrade-10-0palo-alto-networks-pan-os-upgrade-8-1palo-alto-networks-pan-os-upgrade-9-0palo-alto-networks-pan-os-upgrade-9-1 | Sep 10, 2021 | Mar 6, 2020 | |
| Redhat_linux | no-fix-redhat-rpm-packageredhat-upgrade-telnetredhat-upgrade-telnet-debuginforedhat-upgrade-telnet-debugsourceredhat-upgrade-telnet-serverredhat-upgrade-telnet-server-debuginfo | Apr 7, 2020 | Mar 6, 2020 | |
| Suse | — | suse-upgrade-krb5-appl-clientssuse-upgrade-krb5-appl-servers | Jun 6, 2020 | Mar 6, 2020 |
| Ubuntu | ubuntu-pro-upgrade-inetutils-ftpubuntu-pro-upgrade-inetutils-ftpdubuntu-pro-upgrade-inetutils-inetdubuntu-pro-upgrade-inetutils-pingubuntu-pro-upgrade-inetutils-syslogdubuntu-pro-upgrade-inetutils-talkubuntu-pro-upgrade-inetutils-telnetubuntu-pro-upgrade-inetutils-telnetdubuntu-pro-upgrade-inetutils-toolsubuntu-pro-upgrade-inetutils-tracerouteubuntu-upgrade-inetutils-telnetd | Aug 21, 2021 | Mar 6, 2020 | |
| Vmware Photon_os | vmware-photon_os_update_tdnf | Feb 9, 2026 | Mar 6, 2020 |
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