Out-of-bounds Read in Qt
CVE-2023-33285
An issue was discovered in Qt 5.x before 5.15.14, 6.x before 6.2.9, and 6.3.x through 6.5.x before 6.5.1. QDnsLookup has a buffer over-read via a crafted reply from a DNS server.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.
EPSS exploit prediction
EPSS: 0.008 (55.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 55th percentile — 55.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000
Affected products
Weakness classification (CWE)
References
- codereview.qt-project.org/c/qt/qtbase/+/477644 (Vendor Advisory)
- lists.debian.org/debian-lts-announce/2024/04/msg00027.html (mailing-list)
Frequently asked questions
- What is CVE-2023-33285?
- CVE-2023-33285 is a medium-severity vulnerability in Qt, classified under Out-of-bounds Read. CVSS score: 5.3/10. Published 2023-05-22.
- How severe is CVE-2023-33285?
- Medium severity. CVSS v3 base score is 5.3 out of 10.