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.

CVSS v3.0 4.3 MEDIUM
CVSS v2.0 4.3 MEDIUM

4.3^/10

CVSS v3.0 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact LOW

Scope UNCHANGED

4.3^/10

CVSS v2.0 : MEDIUM

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

Exploitability : 8.6 / Impact : 2.9

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

Link	Resource
https://bugreports.qt.io/browse/QTBUG-77819	Permissions Required
https://bugs.launchpad.net/ubuntu/+source/qtbase-opensource-src/+bug/1848784	Issue Tracking Third Party Advisory
https://codereview.qt-project.org/c/qt/qtbase/+/271889	Patch Vendor Advisory
https://www.debian.org/security/2019/dsa-4556	Third Party Advisory
https://seclists.org/bugtraq/2019/Nov/4	Mailing List Third Party Advisory
https://usn.ubuntu.com/4275-1/
https://security.gentoo.org/glsa/202003-60

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Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:qt:qtbase::::::::
	cpe:2.3:a:qt:qtbase::::::::

Configuration 2 (hide)

OR	cpe:2.3:o:debian:debian_linux:9.0:::::::*
	cpe:2.3:o:debian:debian_linux:10.0:::::::*

Information

Published : 2019-10-23 08:15

Updated : 2020-02-18 12:15

NVD link : CVE-2019-18281

Mitre link : CVE-2019-18281

JSON object : View

CWE

CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer

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Products Affected

debian

debian_linux

qt

qtbase

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