What’s Vulnerable › Vulnerabilities

CVE-2009-4034

• Severity: medium (CVSS 5.8 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2009-12-15 · updated 2026-06-16
• Weakness: CWE-310

Description

PostgreSQL 7.4.x before 7.4.27, 8.0.x before 8.0.23, 8.1.x before 8.1.19, 8.2.x before 8.2.15, 8.3.x before 8.3.9, and 8.4.x before 8.4.2 does not properly handle a '\0' character in a domain name in the subject's Common Name (CN) field of an X.509 certificate, which (1) allows man-in-the-middle attackers to spoof arbitrary SSL-based PostgreSQL servers via a crafted server certificate issued by a legitimate Certification Authority, and (2) allows remote attackers to bypass intended client-hostname restrictions via a crafted client certificate issued by a legitimate Certification Authority, a related issue to CVE-2009-2408.

Affected products

• PostgreSQL: 7.4.1, 7.4.2, 7.4.3, 7.4.4, 7.4.5, 7.4.6 (+86)

References

• http://lists.opensuse.org/opensuse-security-announce/2010-01/msg00007.html
• http://marc.info/?l=bugtraq&m=134124585221119&w=2
• http://osvdb.org/61038
• http://secunia.com/advisories/37663
• http://wiki.rpath.com/wiki/Advisories:rPSA-2010-0012
• http://www.mandriva.com/security/advisories?name=MDVSA-2009:333
• http://www.postgresql.org/docs/current/static/release-7-4-27.html
• http://www.postgresql.org/docs/current/static/release-8-0-23.html
• http://www.postgresql.org/docs/current/static/release-8-1-19.html
• http://www.postgresql.org/docs/current/static/release-8-2-15.html
• http://www.postgresql.org/docs/current/static/release-8-3-9.html
• http://www.postgresql.org/docs/current/static/release-8-4-2.html

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