CVE Vulnerability

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.

4.3 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 8.6 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

Scope

4.3 /10

CVSS v3.0 : MEDIUM

V3 Legend

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

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
Configurations

Configuration 1

cpe:2.3:a:qt:qtbase:*:*:*:*:*:*:*:*
cpe:2.3:a:qt:qtbase:*:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
Information

Published : 2019-10-23 03:15

Updated : 2020-02-18 08:15

NVD link : CVE-2019-18281

Mitre link : CVE-2019-18281

Products Affected
No products.
CWE
CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer