CVE-2012-6093: Canonical Ubuntu Linux

Medium severity, CVSS 4.3. EPSS: 1.8% chance of exploitation in the next 30 days.

The QSslSocket::sslErrors function in Qt before 4.6.5, 4.7.x before 4.7.6, 4.8.x before 4.8.5, when using certain versions of openSSL, uses an "incompatible structure layout" that can read memory from the wrong location, which causes Qt to report an incorrect error when certificate validation fails and might cause users to make unsafe security decisions to accept a certificate.

Affected products

• Canonical Ubuntu Linux: version 10.04 only; version 11.10 only; version 12.04 only; version 12.10 only
• Opensuse Opensuse: version 11.4 only; version 12.2 only
• Qt Qt: up to and including 4.6.5; version 4.6.0 only; version 4.6.1 only; version 4.6.2 only; version 4.6.3 only; version 4.6.4 only; …

Published 2013-02-24. Last modified 2026-06-16.