In Qt through 5.14.1, the WebSocket implementation accepts up to 2GB for frames and 2GB for messages. Smaller limits cannot be configured. This makes it easier for attackers to cause a denial of service (memory consumption).
CVSS Score
8.6
EPSS Score
0.004
Published
2020-02-28
An issue was discovered in Qt before 5.11.3. A malformed SVG image causes a segmentation fault in qsvghandler.cpp.
CVSS Score
6.5
EPSS Score
0.009
Published
2018-12-26
An issue was discovered in Qt before 5.11.3. A malformed GIF image causes a NULL pointer dereference in QGifHandler resulting in a segmentation fault.
CVSS Score
8.8
EPSS Score
0.026
Published
2018-12-26
An issue was discovered in Qt before 5.11.3. There is QTgaFile Uncontrolled Resource Consumption.
CVSS Score
6.5
EPSS Score
0.015
Published
2018-12-26
An issue was discovered in Qt before 5.11.3. QBmpHandler has a buffer overflow via BMP data.
CVSS Score
9.8
EPSS Score
0.134
Published
2018-12-26
The Google V8 engine, as used in Google Chrome before 44.0.2403.89 and QtWebEngineCore in Qt before 5.5.1, allows remote attackers to cause a denial of service (memory corruption) or execute arbitrary code via a crafted web site.
CVSS Score
8.8
EPSS Score
0.011
Published
2018-01-09
The GIF decoder in QtGui in Qt before 5.3 allows remote attackers to cause a denial of service (NULL pointer dereference) via invalid width and height values in a GIF image.
CVSS Score
4.3
EPSS Score
0.011
Published
2014-05-08
The XMLHttpRequest object in Qt before 4.8.4 enables http redirection to the file scheme, which allows man-in-the-middle attackers to force the read of arbitrary local files and possibly obtain sensitive information via a file: URL to a QML application.
CVSS Score
4.3
EPSS Score
0.015
Published
2013-02-24
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.
CVSS Score
4.3
EPSS Score
0.011
Published
2013-02-24
The QSharedMemory class in Qt 5.0.0, 4.8.x before 4.8.5, 4.7.x before 4.7.6, and other versions including 4.4.0 uses weak permissions (world-readable and world-writable) for shared memory segments, which allows local users to read sensitive information or modify critical program data, as demonstrated by reading a pixmap being sent to an X server.
CVSS Score
3.6
EPSS Score
0.001
Published
2013-02-06