#VU22483 Out-of-bounds read in Qt - CVE-2019-18281

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Main Vulnerability Database Vulnerabilities #VU22483

#VU22483 Out-of-bounds read in Qt - CVE-2019-18281

Published: November 2, 2019


Vulnerability identifier: #VU22483
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2019-18281
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
Qt
Software vendor:
Trolltech

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary condition within the generateDirectionalRuns() function in qtextengine.cpp in Qt qtbase. A remote attacker can create a specially crafted file, containing many directional characters, trick the victim into opening it, trigger out-of-bounds read error and crash the affected application.


Remediation

Install updates from vendor's website.

External links