Description
QSslSocket in Qt before 4.7.0-rc1 recognizes a wildcard IP address in the subject's Common Name field of an X.509 certificate, which might allow man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 6 | qt +10 | 1:4.6.2-24.el6 | RHSA-2012:0880 |
Advisories 1
- RHSA-2012:0880 Red Hat Security Advisory: qt security and bug fix update Red Hat Security Advisories (RHSA) · Jun 26, 2026
References
- USN-1504-1 vendor-advisory
- 49895 third-party-advisory
- RHSA-2012:0880 vendor-advisory
- 41236 third-party-advisory
- http://qt.gitorious.org/qt/qt/commit/846f1b44eea4bb34d080d055badb40a4a13d369e
- http://qt.gitorious.org/qt/qt/commit/5f6018564668d368f75e431c4cdac88d7421cff0
- 49604 third-party-advisory
- http://www.westpoint.ltd.uk/advisories/wp-10-0001.txt
- https://bugreports.qt-project.org/browse/QTBUG-4455