kritik
CVE-2020-10188
telnet-server: no bounds checks in nextitem() function allows to remotely execute arbitrary code
En geç 24 Eki 2026, 07:11 UTC tarihinden beri Trivy database'indeO derlemeden önce ne zaman girdiği kayıtlı değil.
Kaynağa göre önem derecesi
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
Trivy'nin kendi etiketi CRITICAL. Kritik diyenler: NVD, Photon OS. Daha düşük diyenler: Red Hat (yüksek), Amazon (yüksek), Oracle (yüksek), Ubuntu (orta).
Açıklama
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.
Etkilenen paketler ve düzeltilmiş sürümler
| Kaynak | Paket | Düzeltildiği sürüm |
|---|---|---|
| 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 ve 2 tane daha |
| debian 12 | inetutils, netkit-telnet-ssl | 2:1.9.4-12 ve 1 tane daha |
| debian 13 | inetutils, netkit-telnet-ssl | 2:1.9.4-12 ve 1 tane daha |
| debian 14 | inetutils, netkit-telnet-ssl | 2:1.9.4-12 ve 1 tane daha |
| 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 ve 1 tane daha |
20 kaynaktaki 37 kaydın hepsini göster
| Kaynak | Paket | Düzeltildiği sürüm |
|---|---|---|
| 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 |
Referanslar
- 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
19 referansın hepsi
- 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