CVE-2000-0584

Buffer overflow in Canna input system allows remote attackers to execute arbitrary commands via an SR_INIT command with a long user name or group name

published October 13, 2000

CVSS
—
EPSS
6%
Percentile
93.1
In the wild
Unconfirmed
What it is

⚠️ A long user or group name is all it takes to exploit this vulnerability in the Canna input system! Think of it like a restaurant that allows ridiculously long names on reservations—one over-the-top name could cause chaos in the kitchen, leading to a mix-up in orders, or worse, allowing anyone to take control of the menu! An attacker could send a cleverly crafted SR_INIT command that runs arbitrary commands on the system. This means they could potentially wreak havoc, read sensitive data, or even take full control, making it a huge threat for anyone using the Canna input system.

Put simply

Think of it like a restaurant that allows ridiculously long names on reservations—one over-the-top name could cause chaos in the kitchen, leading to a mix-up in orders, or worse, allowing anyone to take control of the menu! This vulnerability arises from a buffer overflow in the Canna input system, where unvalidated user or group names lead to a situation where attackers can execute malicious commands. The flaw specifically lies in how the system handles excessively long names during the SR_INIT command process.

What to do

An attacker could send a cleverly crafted SR_INIT command that runs arbitrary commands on the system. This means they could potentially wreak havoc, read sensitive data, or even take full control, making it a huge threat for anyone using the Canna input system. To protect yourself, consider updating to any versions of Canna that address this vulnerability. Additionally, implement input validation to ensure user and group names are kept within a reasonable length to prevent exploits. Regular audits of your systems can also help catch such vulnerabilities early! You've got this! With a little diligence, you can lock this down and keep your systems secure! 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.05857 · 93.1th percentile
Published
2000-10-13T04:00Z
EPSS history
Timeline
  • 13 OCT 04:00Z
    Buffer overflow in Canna input system allows remote attackers to execute arbitrary commands via an SR_INIT command with a long user name or group name
    cvelistv5