CVE-2009-4034

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.

Category

5.8
CVSS
Severity: Medium
CVSS 2.0 •
EPSS 1.11% Top 25%
Vendor Advisory marc.info Vendor Advisory redhat.com Vendor Advisory opensuse.org Vendor Advisory redhat.com Vendor Advisory mandriva.com Vendor Advisory postgresql.org Vendor Advisory postgresql.org Vendor Advisory postgresql.org Vendor Advisory postgresql.org Vendor Advisory postgresql.org Vendor Advisory postgresql.org Vendor Advisory postgresql.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://osvdb.org/61038 vdb entry
http://marc.info/?l=bugtraq&m=134124585221119&w=2 vendor advisory
http://www.postgresql.org/docs/current/static/release-8-2-15.html patch vendor advisory
https://www.redhat.com/archives/fedora-package-announce/2009-December/msg01035.html vendor advisory
http://www.postgresql.org/support/security.html vendor advisory
http://www.postgresql.org/docs/current/static/release-8-4-2.html patch vendor advisory
http://www.postgresql.org/docs/current/static/release-8-0-23.html patch vendor advisory
http://www.securityfocus.com/archive/1/509917/100/0/threaded mailing list
http://lists.opensuse.org/opensuse-security-announce/2010-01/msg00007.html vendor advisory
http://www.postgresql.org/docs/current/static/release-8-3-9.html patch vendor advisory
https://www.redhat.com/archives/fedora-package-announce/2009-December/msg01056.html vendor advisory
http://www.securitytracker.com/id?1023325 vdb entry
http://www.mandriva.com/security/advisories?name=MDVSA-2009:333 vendor advisory
http://www.postgresql.org/docs/current/static/release-7-4-27.html patch vendor advisory
http://www.securityfocus.com/bid/37334 vdb entry
http://www.vupen.com/english/advisories/2009/3519 vdb entry
http://www.postgresql.org/docs/current/static/release-8-1-19.html patch vendor advisory
http://secunia.com/advisories/37663 third party advisory
http://wiki.rpath.com/wiki/Advisories:rPSA-2010-0012

Frequently Asked Questions

What is the severity of CVE-2009-4034?
CVE-2009-4034 has been scored as a medium severity vulnerability.
How to fix CVE-2009-4034?
To fix CVE-2009-4034, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2009-4034 being actively exploited in the wild?
It is possible that CVE-2009-4034 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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