Vulnerability Details CVE-2019-18281
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.017
EPSS Ranking 81.5%
CVSS Severity
CVSS v3 Score 4.3
CVSS v2 Score 4.3
References
- https://bugreports.qt.io/browse/QTBUG-77819
- https://bugs.launchpad.net/ubuntu/+source/qtbase-opensource-src/+bug/1848784
- https://codereview.qt-project.org/c/qt/qtbase/+/271889
- https://seclists.org/bugtraq/2019/Nov/4
- https://security.gentoo.org/glsa/202003-60
- https://usn.ubuntu.com/4275-1/
- https://www.debian.org/security/2019/dsa-4556
- https://bugreports.qt.io/browse/QTBUG-77819
- https://bugs.launchpad.net/ubuntu/+source/qtbase-opensource-src/+bug/1848784
- https://codereview.qt-project.org/c/qt/qtbase/+/271889
- https://seclists.org/bugtraq/2019/Nov/4
- https://security.gentoo.org/glsa/202003-60
- https://usn.ubuntu.com/4275-1/
- https://www.debian.org/security/2019/dsa-4556
Products affected by CVE-2019-18281
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cpe:2.3:a:qt:qtbase:5.11.0
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cpe:2.3:a:qt:qtbase:5.11.1
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cpe:2.3:a:qt:qtbase:5.11.2
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cpe:2.3:a:qt:qtbase:5.11.3
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cpe:2.3:a:qt:qtbase:5.12.0
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cpe:2.3:a:qt:qtbase:5.12.1
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cpe:2.3:a:qt:qtbase:5.12.2
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cpe:2.3:a:qt:qtbase:5.12.3
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cpe:2.3:a:qt:qtbase:5.12.4
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cpe:2.3:o:debian:debian_linux:10.0
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cpe:2.3:o:debian:debian_linux:9.0