REDHAT-BUG-269001: Buffer Overflow
First published: Thu Aug 30 2007(Updated: )
Dirk Mueller reported an off by one buffer overflow flaw in the way QT parses certain unicode strings. To quote Dirk: I`ve found a off-by-one buffer overflow in QUtf8Decoder::toUnicode(). It is not exploitable with Qt 4.x or above because there is an additional QChar(0) being allocated in QString, however it is still a bug there, as the array returned by utf16() etc is no longer terminated properly.
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Trolltech Qt | <4.x |
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Reference Links
- https://bugzilla.redhat.com/show_bug.cgi/attachment.cgi?id=181821&action=diff
- https://bugzilla.redhat.com/show_bug.cgi/attachment.cgi?id=181821&action=edit
- https://bugzilla.redhat.com/show_bug.cgi/attachment.cgi?id=181841&action=diff
- https://bugzilla.redhat.com/show_bug.cgi/attachment.cgi?id=181841&action=edit
- http://trolltech.com/company/newsroom/announcements/press.2007-09-03.7564032119
- http://rhn.redhat.com/errata/RHSA-2007-0883.html
- https://admin.fedoraproject.org/updates/F7/FEDORA-2007-2216
- https://bugzilla.redhat.com/show_bug.cgi?id=269001
Frequently Asked Questions
What is the severity of REDHAT-BUG-269001?
The severity of REDHAT-BUG-269001 is classified as a buffer overflow vulnerability.
How do I fix REDHAT-BUG-269001?
To fix REDHAT-BUG-269001, ensure you are using Qt version 4.x or above, as it includes mitigations for this vulnerability.
What software is affected by REDHAT-BUG-269001?
REDHAT-BUG-269001 affects Qt versions below 4.x.
Can REDHAT-BUG-269001 be exploited?
REDHAT-BUG-269001 is not exploitable in Qt 4.x or higher due to additional checks implemented in those versions.
Who reported the vulnerability REDHAT-BUG-269001?
The vulnerability REDHAT-BUG-269001 was reported by Dirk Mueller.
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