Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2001-0554

Severity CVSS v4.0:
Pending analysis
Type:
CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Publication date:
14/08/2001
Last modified:
03/04/2025

Description

Buffer overflow in BSD-based telnetd telnet daemon on various operating systems allows remote attackers to execute arbitrary commands via a set of options including AYT (Are You There), which is not properly handled by the telrcv function.

Impact

Vector 2.0
AV:N/AC:L/Au:N/C:C/I:C/A:C CVSS v2.0 Severity and Metrics:

Base Score: 10.00 HIGH
Vector: AV:N/AC:L/Au:N/C:C/I:C/A:C

Attack Vector (AV): Network
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): Complete
Integrity (I): Complete
Availability (A): Complete

Base Score 2.0
10.00
Severity 2.0
HIGH

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:mit:kerberos:1.0:*:*:*:*:*:*:*
cpe:2.3:a:mit:kerberos_5:1.1:*:*:*:*:*:*:*
cpe:2.3:a:mit:kerberos_5:1.1.1:*:*:*:*:*:*:*
cpe:2.3:a:mit:kerberos_5:1.2:*:*:*:*:*:*:*
cpe:2.3:a:mit:kerberos_5:1.2.1:*:*:*:*:*:*:*
cpe:2.3:a:mit:kerberos_5:1.2.2:*:*:*:*:*:*:*
cpe:2.3:a:netkit:linux_netkit:0.10:*:*:*:*:*:*:*
cpe:2.3:a:netkit:linux_netkit:0.11:*:*:*:*:*:*:*
cpe:2.3:a:netkit:linux_netkit:0.12:*:*:*:*:*:*:*
cpe:2.3:o:sgi:irix:6.5:*:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:2.0:*:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:2.0.1:*:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:2.0.5:*:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:2.1:stable:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:2.1.0:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools