CVE-2009-3475

Name: CVE-2009-3475
Creator: NVD / NIST
Published: 2009-09-29T23:30:00.25+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 0.89%

Last modified Jun 16, 2026

CVE-2009-3475 is a vulnerability of currently unknown severity. Internet2 Shibboleth Service Provider software 1.3.x before 1.3.3 and 2.x before 2.2.1, when using PKIX trust validation, does not properly handle a '\0' character in the subject or subjectAltName fields of a certificate, which allows remote man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority, a related issue to CVE-2009-2408.. EPSS estimates a 0.89% chance of exploitation in the next 30 days.

Description

Internet2 Shibboleth Service Provider software 1.3.x before 1.3.3 and 2.x before 2.2.1, when using PKIX trust validation, does not properly handle a '\0' character in the subject or subjectAltName fields of a certificate, which allows remote man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority, a related issue to CVE-2009-2408.

Metrics

EPSS Probability

0.89%

54.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-310

Affected Software

Vendor	Product	Versions
Internet2	Shibboleth-Sp	1.3.1
Internet2	Shibboleth-Sp	1.3.2
Internet2	Shibboleth-Sp	1.3f
Internet2	Shibboleth-Sp	2.0
Internet2	Shibboleth-Sp	2.1
Internet2	Shibboleth-Sp	2.2

References

http://secunia.com/advisories/36855Vendor Advisory
http://secunia.com/advisories/36861Vendor Advisory
http://secunia.com/advisories/36876Vendor Advisory
http://shibboleth.internet2.edu/secadv/secadv_20090817.txtVendor Advisory
http://www.debian.org/security/2009/dsa-1895
http://www.debian.org/security/2009/dsa-1896
http://secunia.com/advisories/36855Vendor Advisory
http://secunia.com/advisories/36861Vendor Advisory
http://secunia.com/advisories/36876Vendor Advisory
http://shibboleth.internet2.edu/secadv/secadv_20090817.txtVendor Advisory
http://www.debian.org/security/2009/dsa-1895
http://www.debian.org/security/2009/dsa-1896

Timeline

Published: Sep 29, 2009
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2009-3475?

How severe is CVE-2009-3475?

Severity scoring for CVE-2009-3475 is pending analysis. The EPSS model estimates a 0.89% probability of exploitation in the next 30 days.

How do I fix CVE-2009-3475?

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-2009-3475?

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

Scan your code now

Source: NVD / NIST