CVE-2021-3481

A flaw was found in Qt. An out-of-bounds read vulnerability was found in QRadialFetchSimd in qt/qtbase/src/gui/painting/qdrawhelper_p.h in Qt/Qtbase. While rendering and displaying a crafted Scalable Vector Graphics (SVG) file this flaw may lead to an unauthorized memory access. The highest threat from this vulnerability is to data confidentiality and the application availability.

• CWE-125
• CWE-125

• https://access.redhat.com/security/cve/CVE-2021-3481Third Party Advisory
• https://bugreports.qt.io/browse/QTBUG-91507Exploit, Vendor Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=1931444Issue Tracking, Third Party Advisory
• https://codereview.qt-project.org/c/qt/qtsvg/+/337646Vendor Advisory
• https://lists.debian.org/debian-lts-announce/2023/08/msg00028.html
• https://access.redhat.com/security/cve/CVE-2021-3481Third Party Advisory
• https://bugreports.qt.io/browse/QTBUG-91507Exploit, Vendor Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=1931444Issue Tracking, Third Party Advisory
• https://codereview.qt-project.org/c/qt/qtsvg/+/337646Vendor Advisory
• https://lists.debian.org/debian-lts-announce/2023/08/msg00028.html

Published

Aug 22, 2022

Last Modified

Jun 17, 2026

Status

Modified

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