CVE-2019-18281

medium

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.

References

https://www.debian.org/security/2019/dsa-4556

https://usn.ubuntu.com/4275-1/

https://security.gentoo.org/glsa/202003-60

https://seclists.org/bugtraq/2019/Nov/4

https://codereview.qt-project.org/c/qt/qtbase/+/271889

https://bugs.launchpad.net/ubuntu/+source/qtbase-opensource-src/+bug/1848784

https://bugreports.qt.io/browse/QTBUG-77819

Details

Source: Mitre, NVD

Published: 2019-10-23

Updated: 2020-02-18

Risk Information

CVSS v2

Base Score: 4.3

Vector: CVSS2#AV:N/AC:M/Au:N/C:N/I:N/A:P

Severity: Medium

CVSS v3

Base Score: 4.3

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L

Severity: Medium