CVE-2021-3481

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.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
qt4-x11	25.10 questing	Not in release
	25.04 plucky	Not in release
	24.10 oracular	Not in release
	24.04 LTS noble	Not in release
	23.10 mantic	Not in release
	23.04 lunar	Not in release
	22.10 kinetic	Not in release
	22.04 LTS jammy	Not in release
	21.10 impish	Not in release
	21.04 hirsute	Not in release
	20.10 groovy	Not in release
	20.04 LTS focal	Not in release
	18.04 LTS bionic	Needs evaluation
	16.04 LTS xenial	Needs evaluation
	14.04 LTS trusty	Needs evaluation
qtsvg-opensource-src	25.10 questing	Needs evaluation
	25.04 plucky	Needs evaluation
	24.10 oracular	Ignored end of life, was needs-triage
	24.04 LTS noble	Needs evaluation
	23.10 mantic	Ignored end of life, was needs-triage
	23.04 lunar	Ignored end of life, was needs-triage
	22.10 kinetic	Ignored end of life, was needs-triage
	22.04 LTS jammy	Needs evaluation
	21.10 impish	Ignored end of life
	21.04 hirsute	Ignored end of life
	20.10 groovy	Ignored end of life
	20.04 LTS focal	Needs evaluation
	18.04 LTS bionic	Fixed 5.9.5-0ubuntu1.1
	16.04 LTS xenial	Needs evaluation
	14.04 LTS trusty	Not in release

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
qtsvg-opensource-src	Upstream: https://codereview.qt-project.org/gitweb?p=qt%2Fqtsvg.git;a=commit;h=bfd6ee0d8cf34b63d32adf10ed93daa0086b359f Upstream: https://codereview.qt-project.org/gitweb?p=qt%2Fqtsvg.git;a=commit;h=0fa522904d65b73d48d5fadf690131e9ebb58d2a Upstream: https://codereview.qt-project.org/gitweb?p=qt%2Fqtsvg.git;a=commit;h=9f7ccbfc68d20d0dc2ddc1e7dee5572dcf7dcd48

Severity score breakdown

Parameter	Value
Base score	7.1 · High
Attack vector	Local
Attack complexity	Low
Privileges required	None
User interaction	Required
Scope	Unchanged
Confidentiality	High
Integrity impact	None
Availability impact	High
Vector	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H

References

Related Ubuntu Security Notices (USN)

USN-5241-1
QtSvg vulnerabilities
19 January 2022

Cvss 3 Severity Score