Vulnerability Description
An out-of-bounds memory access in the generateDirectionalRuns() function in qtextengine.cpp in Qt qtbase 5.11.x and 5.12.x before 5.12.5 allows attackers to cause a denial of service by crashing an application via a text file containing many directional characters.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Qt | Qtbase | >= 5.11.0, <= 5.11.3 |
| Debian | Debian Linux | 9.0 |
Related Weaknesses (CWE)
References
- https://bugreports.qt.io/browse/QTBUG-77819Permissions Required
- https://bugs.launchpad.net/ubuntu/+source/qtbase-opensource-src/+bug/1848784Issue TrackingThird Party Advisory
- https://codereview.qt-project.org/c/qt/qtbase/+/271889PatchVendor Advisory
- https://seclists.org/bugtraq/2019/Nov/4Mailing ListThird Party Advisory
- https://security.gentoo.org/glsa/202003-60
- https://usn.ubuntu.com/4275-1/
- https://www.debian.org/security/2019/dsa-4556Third Party Advisory
- https://bugreports.qt.io/browse/QTBUG-77819Permissions Required
- https://bugs.launchpad.net/ubuntu/+source/qtbase-opensource-src/+bug/1848784Issue TrackingThird Party Advisory
- https://codereview.qt-project.org/c/qt/qtbase/+/271889PatchVendor Advisory
- https://seclists.org/bugtraq/2019/Nov/4Mailing ListThird Party Advisory
- https://security.gentoo.org/glsa/202003-60
- https://usn.ubuntu.com/4275-1/
- https://www.debian.org/security/2019/dsa-4556Third Party Advisory
FAQ
What is CVE-2019-18281?
CVE-2019-18281 is a vulnerability with a CVSS score of 4.3 (MEDIUM). An out-of-bounds memory access in the generateDirectionalRuns() function in qtextengine.cpp in Qt qtbase 5.11.x and 5.12.x before 5.12.5 allows attackers to cause a denial of service by crashing an ap...
How severe is CVE-2019-18281?
CVE-2019-18281 has been rated MEDIUM with a CVSS base score of 4.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2019-18281?
Check the references section above for vendor advisories and patch information. Affected products include: Qt Qtbase, Debian Debian Linux.