CVE-2021-45930
qt: out-of-bounds write may lead to DoS
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · December 31, 2021
Updated · November 22, 2025
Description
A flaw was found in qtsvg's qsvghandler.cpp module. An attacker who is able to submit a crafted image file to an application that uses qsvghandler could cause an out-of-bounds write and potential denial of service to occur, depending on the application.
Statement
This flaw is out of support scope for versions of qt shipped with Red Hat Enterprise Linux 6 and 7 as it does not affect qt3, which does not have the qsvghandler.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-787 · Out-of-bounds Write