CVE-2004-0004

Name: CVE-2004-0004
Creator: NVD / NIST
Published: 2004-02-17T05:00:00+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 2.09%

Last modified Jun 16, 2026

CVE-2004-0004 is a vulnerability of currently unknown severity. The libCheckSignature function in crypto-utils.lib for OpenCA 0.9.1.6 and earlier only compares the serial of the signer's certificate and the one in the database, which can cause OpenCA to incorrectly accept a signature if the certificate's chain is trusted by OpenCA's chain directory, allowing remote attackers to spoof requests from other users.. EPSS estimates a 2.09% chance of exploitation in the next 30 days.

Description

The libCheckSignature function in crypto-utils.lib for OpenCA 0.9.1.6 and earlier only compares the serial of the signer's certificate and the one in the database, which can cause OpenCA to incorrectly accept a signature if the certificate's chain is trusted by OpenCA's chain directory, allowing remote attackers to spoof requests from other users.

Metrics

EPSS Probability

2.09%

79.3th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Openca	Openca	<= 0.9.1.6

References

http://marc.info/?l=bugtraq&m=107427313700554&w=2
http://www.kb.cert.org/vuls/id/336446US Government Resource
http://www.openca.org/news/CAN-2004-0004.txtPatch, Vendor Advisory
http://www.osvdb.org/3615
http://www.securityfocus.com/bid/9435Patch, Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/14847
http://marc.info/?l=bugtraq&m=107427313700554&w=2
http://www.kb.cert.org/vuls/id/336446US Government Resource
http://www.openca.org/news/CAN-2004-0004.txtPatch, Vendor Advisory
http://www.osvdb.org/3615
http://www.securityfocus.com/bid/9435Patch, Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/14847

Timeline

Published: Feb 17, 2004
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2004-0004?

How severe is CVE-2004-0004?

Severity scoring for CVE-2004-0004 is pending analysis. The EPSS model estimates a 2.09% probability of exploitation in the next 30 days.

How do I fix CVE-2004-0004?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2004-0004?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST