Vulnerability Report

CVE-1999-1109

Title: Sendmail ETRN sequence can cause daemon to continue processing after disconnect (DoS)

DoS

Proof Of Concept

PoC Available for CVE-1999-1109

CWE Category NVD-CWE-noinfo
Published Date Dec 22, 1999
Modified Date Jun 16, 2026
Exploit Status Available
Score 5.0 CVSS v2.0
Exploit Probability (EPSS)
7.17%

Vulnerability Summary

CVE-1999-1109: Sendmail before 8.10.0 allows remote attackers to cause a denial of service by sending a series of ETRN commands then disconnecting from the server, while Sendmail continues to process the commands after the connection has been terminated.

Impacted Vendors

E
eric_allman 1
M
metainfo 1
S
sendmail 1
R
redhat 1

Reference Links

http://marc.info/?l=bugtraq&m=94632241202626&w=2 http://marc.info/?l=bugtraq&m=94780566911948&w=2 http://www.iss.net/security_center/static/7760.php http://www.securityfocus.com/bid/904 http://marc.info/?l=bugtraq&m=94632241202626&w=2 http://marc.info/?l=bugtraq&m=94780566911948&w=2 http://www.iss.net/security_center/static/7760.php http://www.securityfocus.com/bid/904
CVSS v2.0
Source Entity [email protected]
Severity MEDIUM
5.0
Access Vector
N/A
Authentication
N/A
RAW VECTOR AV:N/AC:L/Au:N/C:N/I:N/A:P

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-1999-1109 Exploits & PoCs (Proof Of Concept)

Exploit-DB https://www.exploit-db.com/exploits/19701
View Code
MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data or affected products updated.

PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector N/A
Complexity N/A
Privileges N/A
Interaction NONE
CVSS Vector String AV:N/AC:L/Au:N/C:N/I:N/A:P

Affected Stack

No specific products linked.