CVE-2009-2474: Apple Mac OS X

Medium severity, CVSS 5.8. EPSS: 1.5% chance of exploitation in the next 30 days.

neon before 0.28.6, when OpenSSL or GnuTLS is used, 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 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

• Apple Mac OS X: before 10.6.5 (fixed in 10.6.5)
• Canonical Ubuntu Linux: version 6.06 only; version 8.04 only; version 8.10 only; version 9.04 only
• Fedoraproject Fedora: version 10 only; version 11 only
• Webdav Neon: before 0.28.6 (fixed in 0.28.6)

Published 2009-08-21. Last modified 2026-06-16.