Resource exhaustion in Postfix - CVE-2001-0894

 

Resource exhaustion in Postfix - CVE-2001-0894

Published: June 8, 2025


Vulnerability identifier: #VU110623
CSH Severity: Medium
CVSS v4: 8.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2001-0894
CWE-ID: CWE-400
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to application does not properly control consumption of internal resources when configured to email the postmaster when SMTP errors cause the session to terminate. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.


Affected software

Postfix

How to mitigate CVE-2001-0894

Install updates from vendor's website.

Postfix - update to 20010228-pl07

External References

Related Security Bulletins