CVE-2021-45930
MEDIUMCVSS 5.5/10EPSS 1.34%
Last modified
CVE-2021-45930 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. Qt SVG in Qt 5.0.0 through 5.15.2 and 6.0.0 through 6.2.1 has an out-of-bounds write in QtPrivate::QCommonArrayOps<QPainterPath::Element>::growAppend (called from QPainterPath::addPath and QPathClipper::intersect).. EPSS estimates a 1.34% chance of exploitation in the next 30 days.
Description
Qt SVG in Qt 5.0.0 through 5.15.2 and 6.0.0 through 6.2.1 has an out-of-bounds write in QtPrivate::QCommonArrayOps<QPainterPath::Element>::growAppend (called from QPainterPath::addPath and QPathClipper::intersect).
Metrics
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Qt | Qtsvg | >= 5.0.0, <= 5.15.2 |
| Qt | Qtsvg | >= 6.0.0, <= 6.2.1 |
| Fedoraproject | Fedora | 34 |
| Fedoraproject | Fedora | 35 |
| Debian | Debian Linux | 9.0 |
References
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=37025Exploit, Issue Tracking, Third Party Advisory
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=37306Exploit, Issue Tracking, Third Party Advisory
- https://github.com/google/oss-fuzz-vulns/blob/main/vulns/qt/OSV-2021-1121.yamlExploit, Third Party Advisory
- https://github.com/qt/qtsvg/commit/36cfd9efb9b22b891adee9c48d30202289cfa620Patch, Third Party Advisory
- https://github.com/qt/qtsvg/commit/79bb9f51fa374106a612d17c9d98d35d807be670Patch, Third Party Advisory
- https://github.com/qt/qtsvg/commit/a3b753c2d077313fc9eb93af547051b956e383fcPatch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/01/msg00020.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/01/msg00022.htmlMailing List, Third Party Advisory
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=37025Exploit, Issue Tracking, Third Party Advisory
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=37306Exploit, Issue Tracking, Third Party Advisory
- https://github.com/google/oss-fuzz-vulns/blob/main/vulns/qt/OSV-2021-1121.yamlExploit, Third Party Advisory
- https://github.com/qt/qtsvg/commit/36cfd9efb9b22b891adee9c48d30202289cfa620Patch, Third Party Advisory
- https://github.com/qt/qtsvg/commit/79bb9f51fa374106a612d17c9d98d35d807be670Patch, Third Party Advisory
- https://github.com/qt/qtsvg/commit/a3b753c2d077313fc9eb93af547051b956e383fcPatch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/01/msg00020.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/01/msg00022.htmlMailing List, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-45930?
Qt SVG in Qt 5.0.0 through 5.15.2 and 6.0.0 through 6.2.1 has an out-of-bounds write in QtPrivate::QCommonArrayOps<QPainterPath::Element>::growAppend (called from QPainterPath::addPath and QPathClipper::intersect).
How severe is CVE-2021-45930?
CVE-2021-45930 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 1.34% probability of exploitation in the next 30 days.
How do I fix CVE-2021-45930?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2021-45930?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST