Buffer overflow in Qt Qtsvg
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).
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.014 (70.5th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 70th percentile — 70.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.014 · newest: 0.014 · change: 0.000
Affected products
- Qt Qtsvg
- Debian Linux — versions 9.0
- Fedoraproject Fedora — versions 34, 35
Weakness classification (CWE)
References
- github.com/google/oss-fuzz-vulns/blob/main/vulns/qt/OSV-2021-1121.yaml (Exploit, Third Party Advisory)
- bugs.chromium.org/p/oss-fuzz/issues/detail (Exploit, Third Party Advisory, Issue Tracking)
- github.com/qt/qtsvg/commit/a3b753c2d077313fc9eb93af547051b956e383fc (Patch, Third Party Advisory)
- github.com/qt/qtsvg/commit/79bb9f51fa374106a612d17c9d98d35d807be670 (Patch, Third Party Advisory)
- github.com/qt/qtsvg/commit/36cfd9efb9b22b891adee9c48d30202289cfa620 (Patch, Third Party Advisory)
- bugs.chromium.org/p/oss-fuzz/issues/detail (Exploit, Third Party Advisory, Issue Tracking)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.debian.org/debian-lts-announce/2022/01/msg00020.html (mailing-list, Mailing List, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2022/01/msg00022.html (mailing-list, Mailing List, Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
Frequently asked questions
- What is CVE-2021-45930?
- CVE-2021-45930 is a medium-severity vulnerability in Qt Qtsvg, classified under Out-of-bounds Write. CVSS score: 5.5/10. Published 2022-01-01.
- How severe is CVE-2021-45930?
- Medium severity. CVSS v3 base score is 5.5 out of 10.