Xinetd Buffer Overflow Vulnerability

BID:2840

Info

Xinetd Buffer Overflow Vulnerability

Bugtraq ID: 2840
Class: Boundary Condition Error
CVE:
Remote: Yes
Local: No
Published: Jun 08 2001 12:00AM
Updated: Jun 08 2001 12:00AM
Credit: Reported by <[email protected]> on June 8, 2001.
Vulnerable: Xinetd Xinetd 2.1.8 .9pre9
+ Redhat Linux 7.0
Xinetd Xinetd 2.1.8 .9pre8
Xinetd Xinetd 2.1.8 .9pre7
Xinetd Xinetd 2.1.8 .9pre6
Xinetd Xinetd 2.1.8 .9pre5
Xinetd Xinetd 2.1.8 .9pre4
Xinetd Xinetd 2.1.8 .9pre3
Xinetd Xinetd 2.1.8 .9pre2
Xinetd Xinetd 2.1.8 .9pre14
+ Mandriva Linux Mandrake 8.0
+ Redhat Linux 7.1
Xinetd Xinetd 2.1.8 .9pre13
Xinetd Xinetd 2.1.8 .9pre12
+ MandrakeSoft Single Network Firewall 7.2
+ Mandriva Linux Mandrake 7.2
Xinetd Xinetd 2.1.8 .9pre11
Xinetd Xinetd 2.1.8 .9pre10
+ MandrakeSoft Single Network Firewall 7.2
+ Mandriva Linux Mandrake 7.2
Xinetd Xinetd 2.1.8 .9pre1
Xinetd Xinetd 2.1.8 .8pre3
- Debian Linux 2.2 sparc
 - Debian Linux 2.2 powerpc
 - Debian Linux 2.2 arm
 - Debian Linux 2.2 alpha
 - Debian Linux 2.2 68k
 - Debian Linux 2.2
Xinetd Xinetd 2.1.8 .8
Redhat xinetd-2.1.8.9pre9-6.i386.rpm
+ Redhat Linux 7.0
Redhat xinetd-2.1.8.9pre14-6.i386.rpm
+ Redhat Linux 7.1
Not Vulnerable: Xinetd Xinetd 2.1.8 .9pre15
+ Immunix Immunix OS 7.0 beta
 + Immunix Immunix OS 7.0

Discussion

Xinetd Buffer Overflow Vulnerability

The possibility for a buffer overflow condition exists in the xinetd daemon.

Xinetd provides the ability to log via identd the user-identities of clients connecting to specific services if the clients host supports it.

It may be possible for attackers to construct identd responses which exploit this subtle overflow condition.

If successfully exploited, an attacker would gain root privileges on the affected host. It may also be possible for attackers to crash xinetd, which would result in a denial of service for all services started by inetd (telnet, ftp, etc).

Exploit / POC

Xinetd Buffer Overflow Vulnerability

exploit available

Solution / Fix

Xinetd Buffer Overflow Vulnerability

Solution:
Version 2.1.8.9pre14, which ships with Red Hat Linux 7.1 is patched.

An update has been made available from Red Hat which reportedly corrects this issue. Though these updates were published in an advisory for another xinetd vulnerability (see BID 2826), the buffer overflow is reportedly eliminated as well.

Debian has also made updated packages available.


Redhat xinetd-2.1.8.9pre9-6.i386.rpm

Redhat xinetd-2.1.8.9pre14-6.i386.rpm

Xinetd Xinetd 2.1.8 .8pre3

Xinetd Xinetd 2.1.8 .9pre10

Xinetd Xinetd 2.1.8 .9pre11

Xinetd Xinetd 2.1.8 .8

Xinetd Xinetd 2.1.8 .9pre3

Xinetd Xinetd 2.1.8 .9pre14

References

Xinetd Buffer Overflow Vulnerability

References:

© CVE.report 2026

Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.

CVE, CWE, and OVAL are registred trademarks of The MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. This site includes MITRE data granted under the following license.

Free CVE JSON API cve.report/api

CVE.report and Source URL Uptime Status status.cve.report