CVE-2021-3481

Public Exploit

Description

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.

Category

7.1
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.03%
Vendor Advisory qt.io Vendor Advisory qt-project.org
Affected: n/a qt
Published at:
Updated at:

References

Link Tags
https://bugreports.qt.io/browse/QTBUG-91507 vendor advisory exploit
https://codereview.qt-project.org/c/qt/qtsvg/+/337646 vendor advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1931444 third party advisory issue tracking
https://access.redhat.com/security/cve/CVE-2021-3481 third party advisory
https://lists.debian.org/debian-lts-announce/2023/08/msg00028.html mailing list

Frequently Asked Questions

What is the severity of CVE-2021-3481?
CVE-2021-3481 has been scored as a high severity vulnerability.
How to fix CVE-2021-3481?
To fix CVE-2021-3481, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-3481 being actively exploited in the wild?
It is possible that CVE-2021-3481 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-3481?
CVE-2021-3481 affects n/a qt.
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