qt: QSslSocket might report inappropriate errors when certificate verification fails
Published Feb 24, 2013
4.3
MEDIUMCVSS 2.0
EPSS 1.78%
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
No data.
Configuration 1
Configuration 2
Configuration 3
Configuration 4
- 10.04
- 11.10
- 12.04
- 12.10
- 11.4
- 12.2
No data.
Red Hat Enterprise Linux 5
qt
Not affected
Red Hat Enterprise Linux 5
qt4
Not affected
Red Hat Enterprise Linux 6
qt
Not affected
Red Hat Enterprise Linux 6
qt3
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | qt | Not affected | n/a |
| Red Hat Enterprise Linux 5 | qt4 | Not affected | n/a |
| Red Hat Enterprise Linux 6 | qt | Not affected | n/a |
| Red Hat Enterprise Linux 6 | qt3 | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
Not vulnerable. This issue did not affect the versions of Qt as shipped with Red Hat Enterprise Linux 5 and 6.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:N/AC:M/Au:N/C:P/I:N/A:N
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (13 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.78% (0.01778) | 77.41th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.78% (0.01778) | 75.26th | v5 (v2026.06.15) |
| Nov 7, 2025 | 2.28% (0.02277) | 84.11th | v4 (v2025.03.14) |
| Mar 30, 2025 | 1.09% (0.01095) | 75.98th | v4 (v2025.03.14) |
| Mar 29, 2025 | 2.58% (0.02583) | 75.92th | v4 (v2025.03.14) |
| Mar 17, 2025 | 1.09% (0.01095) | 76.43th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.32% (0.00318) | 71.32th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.32% (0.00318) | 69.66th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.32% (0.00318) | 65.71th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.54% (0.01537) | 74.52th | v2 (v2022.01.01) |
| Feb 23, 2023 | 1.54% (0.01537) | 74.48th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.54% (0.01537) | 72.41th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.54% (0.01537) | 51.33th | v2 (v2022.01.01) |
References (15)
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=697582 x_refsource_MISC
- http://lists.opensuse.org/opensuse-updates/2013-01/msg00086.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-updates/2013-01/msg00089.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-updates/2013-02/msg00014.html vendor-advisoryx_refsource_SUSE
- http://lists.qt-project.org/pipermail/announce/2013-January/000020.html mailing-listx_refsource_MLISTVendor Advisory
- http://qt.gitorious.org/qt/qt/commit/3b14dc93cf0ef06f1424d7d6319a1af4505faa53%20%284.7%29 x_refsource_CONFIRM
- http://qt.gitorious.org/qt/qt/commit/691e78e5061d4cbc0de212d23b06c5dffddf2098%20%284.8%29 x_refsource_CONFIRM
- http://secunia.com/advisories/52217 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://www.openwall.com/lists/oss-security/2013/01/04/6 mailing-listx_refsource_MLIST
- http://www.ubuntu.com/usn/USN-1723-1 vendor-advisoryx_refsource_UBUNTU
- https://access.redhat.com/security/cve/CVE-2012-6093 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=891955 x_refsource_MISCIssue Tracking
- https://codereview.qt-project.org/#change%2C42461 x_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2012-6093
- https://www.cve.org/CVERecord?id=CVE-2012-6093
Change history (0)
No recorded changes yet.