CVE-2021-38593
First published: Thu Aug 12 2021(Updated: )
Qt 5.x before 5.15.6 and 6.x through 6.1.2 has an out-of-bounds write in QOutlineMapper::convertPath (called from QRasterPaintEngine::fill and QPaintEngineEx::stroke).
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Qt Qt | >=5.0.0<5.15.6 | |
| Qt Qt | >=6.0.0<=6.1.2 | |
| Fedoraproject Fedora | =35 | |
| Fedoraproject Fedora | =36 |
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Reference Links
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35566
- https://github.com/google/oss-fuzz-vulns/blob/main/vulns/qt/OSV-2021-903.yaml
- https://github.com/qt/qtbase/commit/1ca02cf2879a5e1511a2f2109f0925cf4c892862
- https://github.com/qt/qtbase/commit/202143ba41f6ac574f1858214ed8bf4a38b73ccd
- https://github.com/qt/qtbase/commit/6b400e3147dcfd8cc3a393ace1bd118c93762e0c
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/36VN2WKMNQUSTF6ZW2X52NPAJVXJ4S5I/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HY5YCSDCTLHVMP3OXOM6HNTWHV6DBHDX/
- https://wiki.qt.io/Qt_5.15_Release#Known_Issues
- https://www.qt.io/blog/qt-5.15-extended-support-for-subscription-license-holders
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/36VN2WKMNQUSTF6ZW2X52NPAJVXJ4S5I/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HY5YCSDCTLHVMP3OXOM6HNTWHV6DBHDX/
- https://security.gentoo.org/glsa/202402-03
Frequently Asked Questions
What is the severity of CVE-2021-38593?
The severity of CVE-2021-38593 is high with a severity value of 7.5.
Which software versions are affected by CVE-2021-38593?
Qt 5.x before 5.15.6 and 6.x through 6.1.2 are affected by CVE-2021-38593.
What is the vulnerability in CVE-2021-38593?
CVE-2021-38593 is an out-of-bounds write vulnerability in QOutlineMapper::convertPath.
How can I fix CVE-2021-38593?
To fix CVE-2021-38593, update Qt to version 5.15.6 or later for Qt 5.x, and update to version 6.1.2 or later for Qt 6.x.
Is Fedora affected by CVE-2021-38593?
Yes, Fedora versions 35 and 36 are affected by CVE-2021-38593.
- collector/nvd-index
- agent/type
- agent/remedy
- agent/softwarecombine
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- agent/author
- agent/severity
- agent/references
- agent/tags
- agent/weakness
- agent/description
- agent/first-publish-date
- agent/event
- collector/nvd-api
- source/NVD
- agent/software-canonical-lookup
- vendor/qt
- canonical/qt qt
- version/qt qt/5.0.0
- version/qt qt/6.0.0
- version/qt qt/6.1.2
- vendor/fedoraproject
- canonical/fedoraproject fedora
- version/fedoraproject fedora/35
- version/fedoraproject fedora/36