An issue was discovered in the HTTP2 implementation in Qt before 5.15.17, 6.x before 6.2.11, 6.3.x through 6.5.x before 6.5.4, and 6.6.x before 6.6.2. network/access/http2/hpacktable.cpp has an incorrect HPack integer overflow check.
Fix
Patch, vendor advisory and mitigation references on NVD 4
- https://codereview.qt-project.org/c/qt/qtbase/+/524864 Patch, Product
- https://codereview.qt-project.org/c/qt/qtbase/+/524865/3 Patch, Product
- https://codereview.qt-project.org/c/qt/qtbase/+/524864 Patch, Product
- https://codereview.qt-project.org/c/qt/qtbase/+/524865/3 Patch, Product
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 9.8 · debian, qtNVD modified 2026-10-08 22:17
Affected (CPE criteria) 2
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*cpe:2.3:a:qt:qt:*:*:*:*:*:*:*:*
References 6
- https://codereview.qt-project.org/c/qt/qtbase/+/524864 Patch, Product
- https://codereview.qt-project.org/c/qt/qtbase/+/524865/3 Patch, Product
- https://lists.debian.org/debian-lts-announce/2024/04/msg00027.html Mailing List, Third Party Advisory
- https://codereview.qt-project.org/c/qt/qtbase/+/524864 Patch, Product
- https://codereview.qt-project.org/c/qt/qtbase/+/524865/3 Patch, Product
- https://lists.debian.org/debian-lts-announce/2024/04/msg00027.html Mailing List, Third Party Advisory