National Vulnerability Database

National Vulnerability Database

National Vulnerability

CVE-2005-0468 Detail


Heap-based buffer overflow in the env_opt_add function in telnet.c for various BSD-based Telnet clients allows remote attackers to execute arbitrary code via responses that contain a large number of characters that require escaping, which consumers more memory than allocated.

Source:  MITRE      Last Modified:  05/02/2005

Quick Info

CVE Dictionary Entry:
Original release date:
Last revised:


CVSS Severity (version 2.0):
CVSS v2 Base Score:
7.5 HIGH
(AV:N/AC:L/Au:N/C:P/I:P/A:P) (legend)
Impact Subscore:
Exploitability Subscore:
CVSS Version 2 Metrics:
Access Vector:
Network exploitable
Access Complexity:
Not required to exploit
Impact Type:
Provides user account access, Allows partial confidentiality, integrity, and availability violation; Allows unauthorized disclosure of information; Allows disruption of service

Vendor Statements (disclaimer)

Official Statement from Red Hat (03/14/2007)

Red Hat Enterprise Linux 5 is not vulnerable to this issue as it contains a backported patch.

References to Advisories, Solutions, and Tools

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Hyperlink Resource Type Source Name Vendor Advisory External Source FREEBSD FreeBSD-SA-05:01.telnet Patch External Source SGI 20050405-01-P External Source CONECTIVA CLA-2005:962 External Source SUNALERT 101665 External Source SUNALERT 101671 External Source SUNALERT 57755 External Source SUNALERT 57761 Patch; Vendor Advisory External Source CONFIRM External Source DEBIAN DSA-731 Patch; Vendor Advisory External Source DEBIAN DSA-703 Vendor Advisory External Source IDEFENSE 20050328 Multiple Telnet Client env_opt_add() Buffer Overflow Vulnerability US Government Resource External Source CERT-VN VU#341908 External Source MANDRAKE MDKSA-2005:061 Patch; Vendor Advisory External Source REDHAT RHSA-2005:327 Patch; Vendor Advisory External Source REDHAT RHSA-2005:330 External Source BID 12919 External Source UBUNTU USN-224-1 External Source OVAL oval:org.mitre.oval:def:9640

References to Check Content

Check System:

Technical Details

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Vulnerable software and versions Switch to CPE 2.2

Configuration 1

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Change History 3 change records found - show changes