Buffer overflow in Qt
CVE-2021-38593
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).
Vulnerability class: Buffer Overflow
EPSS: 0.031 (85.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Qt
- Fedoraproject Fedora — versions 35, 36
- N/a — versions n/a
Weakness classification (CWE)
References
- cve@mitre.org (Patch, Third Party Advisory)
- cve@mitre.org (Patch, Third Party Advisory)
- cve@mitre.org (Patch, Third Party Advisory)
- cve@mitre.org (Patch, Third Party Advisory, Issue Tracking)
- cve@mitre.org (Third Party Advisory)
- cve@mitre.org (Release Notes)
- cve@mitre.org (Release Notes, Issue Tracking, Vendor Advisory)
- cve@mitre.org (vendor-advisory)
- cve@mitre.org (vendor-advisory)
- cve@mitre.org (vendor-advisory)
Frequently asked questions
- What is CVE-2021-38593?
- CVE-2021-38593 is a high-severity vulnerability in Qt, classified under Out-of-bounds Write. CVSS score: 7.5/10. Published 2021-08-12.
- How severe is CVE-2021-38593?
- High severity. CVSS v3 base score is 7.5 out of 10.