A vulnerability has been reported in Qt, which can potentially be exploited by malicious people to cause a DoS (Denial of Service) or to compromise an application using the library.
The vulnerability is caused due to an off-by-one error within the "QUtf8Decoder::toUnicode()" function ("QUtf8Codec::convertToUnicode()" in Qt 4.x) in codecs/qutfcodec.cpp. This can be exploited to cause a one-byte heap-based buffer overflow via a specially crafted unicode string.
The vulnerability is reported in Qt versions 3.x and 4.x.
NOTE: The vulnerability is reportedly not exploitable in Qt 4.x.
Do you have additional information related to this advisory?
Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this
information to email@example.com
Subject: Qt QUtf8Decoder Off-By-One Vulnerability
No posts yet
You must be logged in to post a comment.
Secunia Customer Login
Not a customer already?
Learn more about how our market leading Vulnerability Management solutions can help you manage risk and ensure compliance.