critique
CVE-2020-10188
telnet-server: no bounds checks in nextitem() function allows to remotely execute arbitrary code
Dans la Trivy database depuis au moins le 24 oct. 2026, 07:11 UTCLa date d'entrée avant ce build n'est pas enregistrée.
Sévérité par source
NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Red Hat9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Le label propre à Trivy est CRITICAL. Critique selon NVD, Photon OS. Plus basse selon Red Hat (élevée), Amazon (élevée), Oracle (élevée), Ubuntu (moyenne).
Description
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.
Paquets affectés et versions corrigées
| Source | Paquet | Corrigé en |
|---|---|---|
| Photon OS 4.0 | netkit-telnet, netkit-telnet-server | 0.17-5.ph4 |
| Photon OS 5.0 | netkit-telnet, netkit-telnet-server | 0.17-8.ph5 |
| amazon linux 1 | telnet, telnet-debuginfo, telnet-server | 1:0.17-49.9.amzn1 |
| amazon linux 2 | telnet, telnet-debuginfo, telnet-server | 1:0.17-65.amzn2 |
| debian 10 | inetutils | 2:1.9.4-7+deb10u1 |
| debian 11 | inetutils, netkit-telnet, netkit-telnet-ssl | 2:1.9.4-12 et 2 autres |
| debian 12 | inetutils, netkit-telnet-ssl | 2:1.9.4-12 et 1 autres |
| debian 13 | inetutils, netkit-telnet-ssl | 2:1.9.4-12 et 1 autres |
| debian 14 | inetutils, netkit-telnet-ssl | 2:1.9.4-12 et 1 autres |
| debian 8 | inetutils | 2:1.9.2.39.3a460-3+deb8u1 |
| debian 9 | inetutils | 2:1.9.4-2+deb9u1 |
| echo | inetutils, netkit-telnet-ssl | 2:1.9.4-12 et 1 autres |
Afficher les 37 entrées de 20 sources
| Source | Paquet | Corrigé en |
|---|---|---|
| Photon OS 4.0 | netkit-telnet | 0.17-5.ph4 |
| Photon OS 4.0 | netkit-telnet-server | 0.17-5.ph4 |
| Photon OS 5.0 | netkit-telnet | 0.17-8.ph5 |
| Photon OS 5.0 | netkit-telnet-server | 0.17-8.ph5 |
| amazon linux 1 | telnet | 1:0.17-49.9.amzn1 |
| amazon linux 1 | telnet-debuginfo | 1:0.17-49.9.amzn1 |
| amazon linux 1 | telnet-server | 1:0.17-49.9.amzn1 |
| amazon linux 2 | telnet | 1:0.17-65.amzn2 |
| amazon linux 2 | telnet-debuginfo | 1:0.17-65.amzn2 |
| amazon linux 2 | telnet-server | 1:0.17-65.amzn2 |
| debian 10 | inetutils | 2:1.9.4-7+deb10u1 |
| debian 11 | inetutils | 2:1.9.4-12 |
| debian 11 | netkit-telnet | 0.17-18woody2 |
| debian 11 | netkit-telnet-ssl | 0.17.17+0.1-2woody3 |
| debian 12 | inetutils | 2:1.9.4-12 |
| debian 12 | netkit-telnet-ssl | 0.17.17+0.1-2woody3 |
| debian 13 | inetutils | 2:1.9.4-12 |
| debian 13 | netkit-telnet-ssl | 0.17.17+0.1-2woody3 |
| debian 14 | inetutils | 2:1.9.4-12 |
| debian 14 | netkit-telnet-ssl | 0.17.17+0.1-2woody3 |
| debian 8 | inetutils | 2:1.9.2.39.3a460-3+deb8u1 |
| debian 9 | inetutils | 2:1.9.4-2+deb9u1 |
| echo | inetutils | 2:1.9.4-12 |
| echo | netkit-telnet-ssl | 0.17.17+0.1-2woody3 |
| Oracle Linux 6 | krb5-appl-clients | 1.0.1-10.el6_10 |
| Oracle Linux 6 | krb5-appl-servers | 1.0.1-10.el6_10 |
| Oracle Linux 6 | telnet | 1:0.17-49.el6_10 |
| Oracle Linux 6 | telnet-server | 1:0.17-49.el6_10 |
| Oracle Linux 7 | telnet | 1:0.17-65.el7_8 |
| Oracle Linux 7 | telnet-server | 1:0.17-65.el7_8 |
| Oracle Linux 8 | telnet | 1:0.17-73.el8_1.1 |
| Oracle Linux 8 | telnet-server | 1:0.17-73.el8_1.1 |
| ubuntu 16.04-ESM | inetutils | 2:1.9.4-1ubuntu0.1~esm1 |
| ubuntu 18.04 | inetutils | 2:1.9.4-3ubuntu0.1 |
| ubuntu 18.04-ESM | inetutils | 2:1.9.4-3ubuntu0.1 |
| ubuntu 20.04 | inetutils | 2:1.9.4-11ubuntu0.1 |
| ubuntu 20.04-ESM | inetutils | 2:1.9.4-11ubuntu0.1 |
Références
- http://www.openwall.com/lists/oss-security/2026/01/20/8
- https://access.redhat.com/security/cve/CVE-2020-10188
- https://appgateresearch.blogspot.com/2020/02/bravestarr-fedora-31-netkit-telnetd_28.html
- https://github.com/krb5/krb5-appl/blob/d00cd671dfe945791b33d4f1f6a5c57ae1667ef8/telnet/telnetd/utility.c#L205-L216
- https://linux.oracle.com/cve/CVE-2020-10188.html
- https://linux.oracle.com/errata/ELSA-2020-1349.html
- https://lists.debian.org/debian-lts-announce/2020/05/msg00012.html
- https://lists.debian.org/debian-lts-announce/2020/08/msg00038.html
Les 19 références
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7FMTRRQTYKWZD2GMXX3GLZV46OLPCLVK/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HLU6FL24BSQQEB2SJC26NLJ2MANQDA7M/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/K3VJ6V2Z3JRNJOBVHSOPMAC76PSSKG6A/
- https://nvd.nist.gov/vuln/detail/CVE-2020-10188
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-telnetd-EFJrEzPx
- https://ubuntu.com/security/notices/USN-5048-1
- https://ubuntu.com/security/notices/USN-5048-2
- https://ubuntu.com/security/notices/USN-7781-1
- https://www.arista.com/en/support/advisories-notices/security-advisories/10702-security-advisory-48
- https://www.cve.org/CVERecord?id=CVE-2020-10188
- https://www.oracle.com/security-alerts/cpuApr2021.html