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.

References

• https://nvd.nist.gov/vuln/detail/CVE-2009-4034
• https://www.redhat.com/archives/fedora-package-announce/2009-December/msg01035.html
• https://www.redhat.com/archives/fedora-package-announce/2009-December/msg01056.html
• 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
• http://www.postgresql.org/support/security.html
• http://www.securityfocus.com/archive/1/509917/100/0/threaded
• http://www.securityfocus.com/bid/37334
• http://www.securitytracker.com/id?1023325
• http://www.vupen.com/english/advisories/2009/3519