Sendmail SMTP HELO Argument Buffer Overflow Vulnerability

BID:49431

Info

Sendmail SMTP HELO Argument Buffer Overflow Vulnerability

Bugtraq ID: 49431
Class: Boundary Condition Error
CVE: CVE-1999-0098
Remote: Yes
Local: No
Published: Apr 01 1998 12:00AM
Updated: Apr 01 1998 12:00AM
Credit: rootshell.com
Vulnerable: Sendmail Consortium Sendmail 8.14.4
Sendmail Consortium Sendmail 8.14.3
Sendmail Consortium Sendmail 8.13.8
Sendmail Consortium Sendmail 8.13.7
Sendmail Consortium Sendmail 8.13.6
Sendmail Consortium Sendmail 8.13.5
Sendmail Consortium Sendmail 8.13.4
Sendmail Consortium Sendmail 8.13.3
Sendmail Consortium Sendmail 8.13.2
Sendmail Consortium Sendmail 8.13.1
Sendmail Consortium Sendmail 8.12.11
Sendmail Consortium Sendmail 8.12.10
+ Slackware Linux 9.0
+ Slackware Linux 8.1
+ Slackware Linux 8.1
+ Slackware Linux -current
 + Slackware Linux -current
 + Sun Solaris 9_x86
 + Sun Solaris 9
 + Sun Solaris 8_x86
 + Sun Solaris 8_sparc
 + Sun Solaris 7.0_x86
 + Sun Solaris 7.0
 Sendmail Consortium Sendmail 8.12.9
+ Slackware Linux 9.0
+ Slackware Linux 8.1
+ Slackware Linux -current
 Sendmail Consortium Sendmail 8.12.8
+ Redhat Linux 9.0 i386
 + Redhat Linux 8.0 i386
 + Yellow Dog Linux 3.0
Sendmail Consortium Sendmail 8.12.7
+ OpenPKG OpenPKG 1.2
+ Slackware Linux 8.1
+ SOTLinux SOTLinux 2003 Desktop
+ SOTLinux SOTLinux 2003 Server
Sendmail Consortium Sendmail 8.12.6
+ Apple Mac OS X 10.2.4
+ Conectiva Linux Enterprise Edition 1.0
+ FreeBSD FreeBSD 5.0
+ FreeBSD FreeBSD 4.7
+ MandrakeSoft Corporate Server 2.1
+ Mandriva Linux Mandrake 9.0
+ OpenBSD OpenBSD 3.2
 + SuSE Linux 8.1
Sendmail Consortium Sendmail 8.12.5
+ OpenBSD OpenBSD 3.2
 Sendmail Consortium Sendmail 8.12.4
+ OpenBSD OpenBSD 3.2
 + Slackware Linux 8.1
+ Slackware Linux -current
 Sendmail Consortium Sendmail 8.12.3
+ Debian Linux 3.0 sparc
 + Debian Linux 3.0 s/390
 + Debian Linux 3.0 ppc
 + Debian Linux 3.0 mipsel
 + Debian Linux 3.0 mips
 + Debian Linux 3.0 m68k
 + Debian Linux 3.0 ia-64
 + Debian Linux 3.0 ia-32
 + Debian Linux 3.0 hppa
 + Debian Linux 3.0 arm
 + Debian Linux 3.0 alpha
 + Debian Linux 3.0
+ FreeBSD FreeBSD 4.6
+ SuSE Linux 8.0 i386
 + SuSE Linux 8.0
Sendmail Consortium Sendmail 8.12.2
+ Apple Mac OS X 10.2.3
+ Apple Mac OS X 10.2.2
+ Apple Mac OS X 10.2.1
+ Apple Mac OS X 10.2
+ Apple Mac OS X Server 10.2.3
+ Apple Mac OS X Server 10.2.2
+ Apple Mac OS X Server 10.2.1
+ Apple Mac OS X Server 10.2
+ OpenBSD OpenBSD 3.1
 Sendmail Consortium Sendmail 8.12.1
+ HP MPE/iX 7.5
+ HP MPE/iX 7.0
+ Mandriva Linux Mandrake 8.2 ppc
 + Mandriva Linux Mandrake 8.2
Sendmail Consortium Sendmail 8.12 beta7
Sendmail Consortium Sendmail 8.12 beta5
Sendmail Consortium Sendmail 8.12 beta16
Sendmail Consortium Sendmail 8.12 beta12
Sendmail Consortium Sendmail 8.12 beta10
Sendmail Consortium Sendmail 8.12 .0
Sendmail Consortium Sendmail 8.11.7
Sendmail Consortium Sendmail 8.11.6
+ Caldera OpenLinux Server 3.1.1
+ Caldera OpenLinux Server 3.1
+ Caldera OpenLinux Workstation 3.1.1
+ Caldera OpenLinux Workstation 3.1
+ FreeBSD FreeBSD 4.5 -RELEASE
 + FreeBSD FreeBSD 4.5
+ FreeBSD FreeBSD 4.4
+ Immunix Immunix OS 7.0
+ Mandriva Linux Mandrake 8.1 ia64
 + Mandriva Linux Mandrake 8.1
+ Mandriva Linux Mandrake 8.0 ppc
 + Mandriva Linux Mandrake 8.0
+ Redhat Linux 7.3 i386
 + Redhat Linux 7.2 ia64
 + Redhat Linux 7.2 i386
 + Redhat Linux 7.1 i386
 + Redhat Linux 7.0 i386
 + Redhat Linux 6.2 i386
 + Sun Cobalt RaQ 550
+ Sun Linux 5.0.3
+ Sun Linux 5.0
+ SuSE Linux 7.3 sparc
 + SuSE Linux 7.3 ppc
 + SuSE Linux 7.3 i386
 + SuSE Linux 7.3
Sendmail Consortium Sendmail 8.11.5
Sendmail Consortium Sendmail 8.11.4
- Slackware Linux 8.0
Sendmail Consortium Sendmail 8.11.3
- MandrakeSoft Corporate Server 1.0.1
- Mandriva Linux Mandrake 8.0
- Slackware Linux 7.1
+ SuSE Linux 7.2 i386
 + SuSE Linux 7.2
Sendmail Consortium Sendmail 8.11.2
+ Redhat Linux 7.1 ia64
 + Redhat Linux 7.1 i386
 + Redhat Linux 7.1 alpha
 + Redhat Linux 7.1
+ SuSE Linux 7.1 x86
 + SuSE Linux 7.1 sparc
 + SuSE Linux 7.1 ppc
 + SuSE Linux 7.1 alpha
 + SuSE Linux 7.1
Sendmail Consortium Sendmail 8.11.1
+ Caldera OpenLinux Server 3.1
+ Caldera OpenLinux Workstation 3.1
Sendmail Consortium Sendmail 8.11
+ Compaq Tru64 5.1 b
 + Compaq Tru64 5.1 a
 + Compaq Tru64 5.1
+ IBM AIX 5.2
 + IBM AIX 5.1
 - Mandriva Linux Mandrake 7.2
+ Redhat Linux 7.0 sparc
 + Redhat Linux 7.0 i386
 + Redhat Linux 7.0 alpha
 + Redhat Linux 7.0
+ SCO Open Server 5.0.6 a
 + SCO Open Server 5.0.6
+ SCO Open Server 5.0.5
+ SCO Open Server 5.0.4
- SuSE Linux 7.0 sparc
 - SuSE Linux 7.0 ppc
 - SuSE Linux 7.0 alpha
 - SuSE Linux 7.0
Sendmail Consortium Sendmail 8.10.2
+ Sun Cobalt Qube3 4000WG
+ Sun Cobalt RaQ 4
+ Sun Cobalt RaQ XTR
+ Sun Cobalt RaQ XTR 3500R
+ Sun Cobalt RaQ4 3001R
Sendmail Consortium Sendmail 8.10.1
Sendmail Consortium Sendmail 8.10
Sendmail Consortium Sendmail 8.8.8
+ Compaq Tru64 4.0 g PK3 (BL17)
 + Compaq Tru64 4.0 f PK7 (BL18)
 + SGI IRIX 6.5.6
+ SGI IRIX 6.5.5
+ SGI IRIX 6.5.4
+ SGI IRIX 6.5.3
+ SGI IRIX 6.5.2
+ SGI IRIX 6.5.1
+ SGI IRIX 6.5
Sendmail Consortium Sendmail 5.65
Sendmail Consortium Sendmail 5.61
Sendmail Consortium Sendmail 5.59
Sendmail Consortium Sendmail 4.55
Sendmail Consortium Sendmail 4.1
Eric Allman Sendmail 8.11
Eric Allman Sendmail 8.10.1
Eric Allman Sendmail 8.10
Eric Allman Sendmail 8.8.5
Eric Allman Sendmail 8.8.4
Eric Allman Sendmail 8.8.3
Eric Allman Sendmail 8.8.2
Eric Allman Sendmail 8.8.1
Eric Allman Sendmail 8.8 .x
Eric Allman Sendmail 8.8
Eric Allman Sendmail 8.7.6
Eric Allman Sendmail 8.7.5
Eric Allman Sendmail 8.7.4
Eric Allman Sendmail 8.7.3
Eric Allman Sendmail 8.7.2
Eric Allman Sendmail 8.7.1
Eric Allman Sendmail 8.7 .x
Eric Allman Sendmail 8.6.10
Eric Allman Sendmail 8.6.9
Eric Allman Sendmail 8.6 .x
Eric Allman Sendmail 5.59
Eric Allman Sendmail 5.58
Not Vulnerable: Sendmail Consortium Sendmail 8.9 .0

Discussion

Sendmail SMTP HELO Argument Buffer Overflow Vulnerability

Sendmail is prone to an SMTP HELO command argument buffer overflow vulnerability.

The issue presents itself due to insufficient bounds checking performed when handling malicious SMTP HELO command arguments of excessive length. A remote attacker may exploit this condition to trigger a denial-of-service in the affected daemon.

Sendmail 8.8.8 is affected; earlier versions may also be vulnerable.

Exploit / POC

Sendmail SMTP HELO Argument Buffer Overflow Vulnerability

The following proof of concept is available:

Solution / Fix

Sendmail SMTP HELO Argument Buffer Overflow Vulnerability

Solution:
Vendor updates are available. Please see the references for more information.

References

Sendmail SMTP HELO Argument 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