CVE-2012-6093
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.
Key facts
- CVSS score
- 4.3 (v2.0)
- Severity
- MEDIUM
- CVSS vector
AV:N/AC:M/Au:N/C:P/I:N/A:N- Weakness (CWE)
- CWE-310
- EPSS score
- 1.8% (78th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2012-5963)
- Published
- February 24, 2013
- NVD last modified
- June 16, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2012-5963 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.
View on the EU Vulnerability DatabaseAffected products
- canonical / ubuntu linux
- canonical / ubuntu linux
- canonical / ubuntu linux
- canonical / ubuntu linux
- opensuse / opensuse
- opensuse / opensuse
- qt / qt
- qt / qt
- qt / qt
- qt / qt
- qt / qt
- qt / qt
- qt / qt
- qt / qt
- qt / qt
- qt / qt
- qt / qt
- qt / qt
- qt / qt
- qt / qt
- qt / qt
- qt / qt
- qt / qt
- qt / qt
- qt / qt
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(Vendor Advisory)
- 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(Vendor Advisory)
- 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
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
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