Amazon Linux 2 : telnet (ALAS-2020-1422)

Critical Nessus Plugin ID 136365


The remote Amazon Linux 2 host is missing a security update.


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. (CVE-2020-10188)


Run 'yum update telnet' to update your system.

See Also

Plugin Details

Severity: Critical

ID: 136365

File Name: al2_ALAS-2020-1422.nasl

Version: 1.3

Type: local

Agent: unix

Published: 2020/05/07

Updated: 2020/07/10

Dependencies: 12634

Risk Information

Risk Factor: Critical

CVSS v2.0

Base Score: 10

Temporal Score: 7.4

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

CVSS v3.0

Base Score: 9.8

Temporal Score: 8.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:telnet, p-cpe:/a:amazon:linux:telnet-debuginfo, p-cpe:/a:amazon:linux:telnet-server, cpe:/o:amazon:linux:2

Required KB Items: Host/local_checks_enabled, Host/AmazonLinux/release, Host/AmazonLinux/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 2020/05/06

Vulnerability Publication Date: 2020/03/06

Reference Information

CVE: CVE-2020-10188

ALAS: 2020-1422

IAVA: 2020-A-0293