Bug 1764742 (CVE-2019-18281) - CVE-2019-18281 qt5-qtbase: Out-of-bounds access in generateDirectionalRuns() function in qtextengine.cpp
Summary: CVE-2019-18281 qt5-qtbase: Out-of-bounds access in generateDirectionalRuns() ...
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2019-18281
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1764743 1764744 1764745 1764746 1790901
Blocks: 1764747
TreeView+ depends on / blocked
 
Reported: 2019-10-23 17:17 UTC by Pedro Sampaio
Modified: 2021-12-13 13:56 UTC (History)
7 users (show)

Fixed In Version: qt5-qtbase v-5.12.5
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2021-10-25 22:12:37 UTC
Embargoed:

Attachments (Terms of Use)

Description Pedro Sampaio 2019-10-23 17:17:50 UTC 
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.

Upstream patch:

https://codereview.qt-project.org/c/qt/qtbase/+/271889
Comment 1 Pedro Sampaio 2019-10-23 17:18:21 UTC 
Created mingw-qt5-qtbase tracking bugs for this issue:

Affects: epel-7 [bug 1764746]
Affects: fedora-all [bug 1764745]


Created qt5-qtbase tracking bugs for this issue:

Affects: epel-6 [bug 1764744]
Affects: fedora-all [bug 1764743]
Comment 2 Marco Benatto 2020-01-14 13:57:41 UTC 
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.
Note You need to log in before you can comment on or make changes to this bug.