CVE-2009-2700 Security feature bypass in n/a

Medium 4.3 Published 2 Sep 2009 Updated 7 Aug 2024

Man-in-the-middle attackers can spoof SSL servers by exploiting improper null character handling in Qt's X.509 certificate validation.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: Available

What is CVE-2009-2700?

CVE-2009-2700 is a medium-severity vulnerability in Qt Qt, published on 2 Sep 2009. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

src/network/ssl/qsslcertificate.cpp in Nokia Trolltech Qt 4.x does not properly handle a '\0' character in a domain name in the Subject Alternative Name field of an X.509 certificate, which allows 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.

Weakness: CWE-20

Which versions are affected by CVE-2009-2700?

It affects 1 product.

Products include Qt Qt.

How do I fix CVE-2009-2700?

Upgrade to a fixed version.

Is CVE-2009-2700 being exploited?

There is no known exploitation of CVE-2009-2700 in the wild and no public exploit code.

All Qt Qt vulnerabilities

Sources

Also known as GHSA-xcxh-pxhq-2wrw.