CVE-2019-18281

qt5-qtbase: Out-of-bounds access in generateDirectionalRuns() function in qtextengine.cpp

Loading…

Severity

Low

Red Hat Product Security

4.3

CVSS 3.0

Review impact separately from score.

Published · October 23, 2019

Updated · June 27, 2026

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.

Statement

Red Hat Enterprise Linux 7 is not affected by this issue as qt5-base version as shipped with it doesn't have the code which contains the bug.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.0 · 4.3
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L

CWE-119 · Improper Restriction of Operations within the Bounds of a Memory Buffer