Vulnerability Description
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).
CVSS Score
7.5
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Qt | Qt | >= 5.0.0, < 5.15.6 |
| Fedoraproject | Fedora | 35 |
Related Weaknesses (CWE)
References
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35566Issue TrackingPatchThird Party Advisory
- https://github.com/google/oss-fuzz-vulns/blob/main/vulns/qt/OSV-2021-903.yamlThird Party Advisory
- https://github.com/qt/qtbase/commit/1ca02cf2879a5e1511a2f2109f0925cf4c892862PatchThird Party Advisory
- https://github.com/qt/qtbase/commit/202143ba41f6ac574f1858214ed8bf4a38b73ccdPatchThird Party Advisory
- https://github.com/qt/qtbase/commit/6b400e3147dcfd8cc3a393ace1bd118c93762e0cPatchThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://security.gentoo.org/glsa/202402-03
- https://wiki.qt.io/Qt_5.15_Release#Known_IssuesIssue TrackingRelease NotesVendor Advisory
- https://www.qt.io/blog/qt-5.15-extended-support-for-subscription-license-holdersRelease Notes
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35566Issue TrackingPatchThird Party Advisory
- https://github.com/google/oss-fuzz-vulns/blob/main/vulns/qt/OSV-2021-903.yamlThird Party Advisory
- https://github.com/qt/qtbase/commit/1ca02cf2879a5e1511a2f2109f0925cf4c892862PatchThird Party Advisory
- https://github.com/qt/qtbase/commit/202143ba41f6ac574f1858214ed8bf4a38b73ccdPatchThird Party Advisory
- https://github.com/qt/qtbase/commit/6b400e3147dcfd8cc3a393ace1bd118c93762e0cPatchThird Party Advisory
FAQ
What is CVE-2021-38593?
CVE-2021-38593 is a vulnerability with a CVSS score of 7.5 (HIGH). 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).
How severe is CVE-2021-38593?
CVE-2021-38593 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-38593?
Check the references section above for vendor advisories and patch information. Affected products include: Qt Qt, Fedoraproject Fedora.