CVE-2006-4343: Canonical Ubuntu Linux

Medium severity, CVSS 4.3. EPSS: 19.1% chance of exploitation in the next 30 days.

The get_server_hello function in the SSLv2 client code in OpenSSL 0.9.7 before 0.9.7l, 0.9.8 before 0.9.8d, and earlier versions allows remote servers to cause a denial of service (client crash) via unknown vectors that trigger a null pointer dereference.

Affected products

• Canonical Ubuntu Linux: version 5.04 only; version 5.10 only; version 6.06 only
• Debian Debian Linux: version 3.1 only
• OpenSSL OpenSSL: version 0.9.7 only; version 0.9.7a only; version 0.9.7b only; version 0.9.7c only; version 0.9.7d only; version 0.9.7e only; …

Published 2006-09-28. Last modified 2026-06-16.