CVE-1999-1521

Computalynx CMail 2.4 and CMail 2.3 SP2 SMTP servers are vulnerable to a buffer overflow attack in the MAIL FROM command that may allow a remote attacker to…

published September 12, 2001

CVSS
—
EPSS
8%
Percentile
94.8
In the wild
Unconfirmed
What it is

⚠️ A sneaky buffer overflow in the MAIL FROM command could let attackers execute arbitrary code on your CMail servers! This vulnerability is like a hidden trapdoor in your mailroom that no one knew about. 🔥 Think of a busy post office where the clerks are overwhelmed by packages. If one package has too much weight and spills over, it could cause chaos — that's what happens here when too much data is sent through the MAIL FROM command without proper checks! This vulnerability means that an attacker could potentially take full control of your SMTP server, leading to unauthorized access and possible data breaches. If exploited, they could execute arbitrary code, causing significant disruption to your email services — a nightmare for any organization relying on these communications!

Put simply

Think of a busy post office where the clerks are overwhelmed by packages. If one package has too much weight and spills over, it could cause chaos — that's what happens here when too much data is sent through the MAIL FROM command without proper checks! The buffer overflow in CMail 2.4 and CMail 2.3 SP2 allows a remote attacker to send a specially crafted MAIL FROM command that exceeds the buffer size, resulting in arbitrary code execution on the server.

What to do

This vulnerability means that an attacker could potentially take full control of your SMTP server, leading to unauthorized access and possible data breaches. If exploited, they could execute arbitrary code, causing significant disruption to your email services — a nightmare for any organization relying on these communications! To protect your system, upgrade to the latest version of CMail that addresses this buffer overflow issue. Regularly review and apply patches to ensure your servers are fortified against such vulnerabilities. Additionally, consider implementing input validation checks to minimize the risk of overflow attacks in the future. You've got this! With these steps, you can secure your servers and keep the bad guys at bay! 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.08054 · 94.8th percentile
Published
2001-09-12T04:00Z
EPSS history
Timeline
  • 12 SEP 04:00Z
    Computalynx CMail 2.4 and CMail 2.3 SP2 SMTP servers are vulnerable to a buffer overflow attack in the MAIL FROM command that may allow a remote attacker to…
    cvelistv5