CVE-2009-2700

Severity: medium (CVSS 4.3 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.9% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2009-09-02 · updated 2026-06-16
Weakness: CWE-20

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.

Affected products

Qt: 4.0.0, 4.0.1, 4.1.0, 4.1.1, 4.1.2, 4.1.3 (+36)

References

http://qt.gitorious.org/qt/qt/commit/802d8c02eaa0aa9cd8d0c6cbd18cd814e6337bc6
http://secunia.com/advisories/36536
http://secunia.com/advisories/36702
http://www.mandriva.com/security/advisories?name=MDVSA-2009:225
http://www.securityfocus.com/bid/36203
http://www.ubuntu.com/usn/usn-829-1
http://www.vupen.com/english/advisories/2009/2499
http://qt.gitorious.org/qt/qt/commit/802d8c02eaa0aa9cd8d0c6cbd18cd814e6337bc6
http://secunia.com/advisories/36536
http://secunia.com/advisories/36702
http://www.mandriva.com/security/advisories?name=MDVSA-2009:225
http://www.securityfocus.com/bid/36203

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