#VU66866 Out-of-bounds read in Qt - CVE-2021-3481
Published: August 30, 2022
Vulnerability identifier: #VU66866
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2021-3481
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Qt
Qt
Software vendor:
Trolltech
Trolltech
Description
The vulnerability allows a remote attacker to gain access to potentially sensitive information or crash the application.
The vulnerability exists due to a boundary condition within the QRadialFetchSimd in qt/qtbase/src/gui/painting/qdrawhelper_p.h in Qt/Qtbase when rendering and displaying a crafted Scalable Vector Graphics (SVG) file. A remote attacker can create a specially crafted SVG file, trick the victim into opening it, trigger out-of-bounds read error and read contents of memory on the system or crash the application.
Remediation
Install updates from vendor's website.