CVE-2003-0743
Exim SMTP Server Heap-based Buffer Overflow
Description
Heap-based buffer overflow in smtp_in.c for Exim 3 (exim3) before 3.36 and Exim 4 (exim4) before 4.21 may allow remote attackers to execute arbitrary code via an invalid (1) HELO or (2) EHLO argument with a large number of spaces followed by a NULL character and a newline, which is not properly trimmed before the "(no argument given)" string is appended to the buffer.
INFO
Published Date :
Oct. 20, 2003, 4 a.m.
Last Modified :
April 3, 2025, 1:03 a.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 2.0 | HIGH | [email protected] |
Solution
- Update Exim to version 4.21 or later.
- Apply the appropriate patches.
Public PoC/Exploit Available at Github
CVE-2003-0743 has a 1 public
PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2003-0743.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2003-0743 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2003-0743
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Imoro Umar Farouq's report on Internal Network Penetration Testing
Shell
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2003-0743 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2003-0743 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 20, 2024
Action Type Old Value New Value Added Reference http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000735 Added Reference http://marc.info/?l=bugtraq&m=106252015820395&w=2 Added Reference http://marc.info/?l=vuln-dev&m=106264740820334&w=2 Added Reference http://packages.debian.org/changelogs/pool/main/e/exim/exim_3.36-13/changelog Added Reference http://packages.debian.org/changelogs/pool/main/e/exim4/exim4_4.34-10/changelog Added Reference http://www.debian.org/security/2003/dsa-376 Added Reference http://www.exim.org/pipermail/exim-announce/2003q3/000094.html Added Reference http://www.exim.org/pipermail/exim-users/Week-of-Mon-20030811/057720.html Added Reference http://www.exim.org/pipermail/exim-users/Week-of-Mon-20030811/057809.html -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Oct. 18, 2016
Action Type Old Value New Value Removed Reference http://marc.theaimsgroup.com/?l=vuln-dev&m=106264740820334&w=2 Removed Reference http://marc.theaimsgroup.com/?l=bugtraq&m=106252015820395&w=2 Added Reference http://marc.info/?l=bugtraq&m=106252015820395&w=2 Added Reference http://marc.info/?l=vuln-dev&m=106264740820334&w=2 -
Initial Analysis by [email protected]
Jan. 01, 2004
Action Type Old Value New Value
Vulnerability Scoring Details
Base CVSS Score: 7.5
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
7.02 }} 1.94%
score
0.90596
percentile