CVE-2012-6093

Severity: medium (CVSS 4.3 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.8% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2013-02-24 · updated 2026-06-16
Weakness: CWE-310

Description

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: 10.04, 11.10, 12.04, 12.10
Opensuse: 11.4, 12.2
Qt: through 4.6.5; 4.6.0, 4.6.0-rc1, 4.6.1, 4.6.2, 4.6.3, 4.6.4 (+12)

References

http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=697582
http://lists.opensuse.org/opensuse-updates/2013-01/msg00086.html
http://lists.opensuse.org/opensuse-updates/2013-01/msg00089.html
http://lists.opensuse.org/opensuse-updates/2013-02/msg00014.html
http://lists.qt-project.org/pipermail/announce/2013-January/000020.html
http://qt.gitorious.org/qt/qt/commit/3b14dc93cf0ef06f1424d7d6319a1af4505faa53%20%284.7%29
http://qt.gitorious.org/qt/qt/commit/691e78e5061d4cbc0de212d23b06c5dffddf2098%20%284.8%29
http://secunia.com/advisories/52217
http://www.openwall.com/lists/oss-security/2013/01/04/6
http://www.ubuntu.com/usn/USN-1723-1
https://bugzilla.redhat.com/show_bug.cgi?id=891955
https://codereview.qt-project.org/#change%2C42461

Get alerted when CVE-2012-6093 or the next vulnerability affects your stack