CVE-2023-32762
published 2023-05-28CVE-2023-32762: An issue was discovered in Qt before 5.15.14, 6.x before 6.2.9, and 6.3.x through 6.5.x before 6.5.1. Qt Network incorrectly parses the…
PriorityP427medium5.3CVSS 3.1
AVNACLPRNUINSUCNILAN
EPSS
0.88%
54.4th percentile
An issue was discovered in Qt before 5.15.14, 6.x before 6.2.9, and 6.3.x through 6.5.x before 6.5.1. Qt Network incorrectly parses the strict-transport-security (HSTS) header, allowing unencrypted connections to be established, even when explicitly prohibited by the server. This happens if the case used for this header does not exactly match.
Affected
13 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | debian_linux | — | — |
| debian | qt6-base | < qt6-base 6.4.2+dfsg-9 (bookworm) | qt6-base 6.4.2+dfsg-9 (bookworm) |
| debian | qtbase-opensource-src | < qt6-base 6.4.2+dfsg-9 (bookworm) | qt6-base 6.4.2+dfsg-9 (bookworm) |
| debian | qtbase-opensource-src-gles | < qt6-base 6.4.2+dfsg-9 (bookworm) | qt6-base 6.4.2+dfsg-9 (bookworm) |
| msrc | cbl2_qt5-qtbase_5.12.11-8_on_cbl_mariner_2.0 | — | — |
| msrc | cbl_mariner_1.0_arm | — | — |
| msrc | cbl_mariner_1.0_x64 | — | — |
| msrc | cbl_mariner_2.0_arm | — | — |
| msrc | cbl_mariner_2.0_x64 | — | — |
| msrc | cm1_qt5-qtbase_5.12.11-7_on_cbl_mariner_1.0 | — | — |
| qt | qt | >= 5.9.0 < 5.15.14 | 5.15.14 |
| qt | qt | >= 6.0.0 < 6.2.9 | 6.2.9 |
| qt | qt | >= 6.3.0 < 6.5.1 | 6.5.1 |
CVSS provenance
nvdv3.15.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
osv7.5HIGH
vendor_ubuntu7.5HIGH
vendor_debian5.3MEDIUM
vendor_msrc5.3MEDIUM
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Ubuntu
Qt vulnerabilities
vendor_ubuntu·2025-09-28·CVSS 7.5
CVE-2023-24607 [HIGH] Qt vulnerabilities
Title: Qt vulnerabilities
Summary: Several security issues were fixed in Qt.
It was discovered that Qt did not correctly handle certain inputs when
using the SQL ODBC driver plugin. An attacker could possibly use this issue
to cause a denial of service. (CVE-2023-24607)
It was discovered that Qt did not correctly parse certain strict-transport-
security headers. An attacker could possibly use this issue to leak
sensitive information. This issue only affected Ubuntu 20.04 LTS and Ubuntu
22.04 LTS. (CVE-2023-32762)
It was discovered that Qt did not correctly handle certain inputs from DNS
servers. A remote attacker could possibly use this issue to execute
arbitrary code or cause a denial of service. (CVE-2023-33285)
It was discovered that Qt did not correctly validate certain CA
certifi
Microsoft
An issue was discovered in Qt before 5.15.14 6.x before 6.2.9 and 6.3.x through 6.5.x before 6.5.1. Qt Network incorrectly parses the strict-transport-security (HSTS) header allowing unencrypted conne
vendor_msrc·2023-05-09·CVSS 5.3
CVE-2023-32762 [MEDIUM] An issue was discovered in Qt before 5.15.14 6.x before 6.2.9 and 6.3.x through 6.5.x before 6.5.1. Qt Network incorrectly parses the strict-transport-security (HSTS) header allowing unencrypted conne
An issue was discovered in Qt before 5.15.14 6.x before 6.2.9 and 6.3.x through 6.5.x before 6.5.1. Qt Network incorrectly parses the strict-transport-security (HSTS) header allowing unencrypted connections to be established even when explicitly prohibited by the server. This happens if the case used for this header does not exactly match.
FAQ: Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability?
One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the most recent and most secure versions of the open source libraries with which the distro is composed. Microsoft is committed to transparency in this work which is why we began pub
Debian
CVE-2023-32762: qt6-base - An issue was discovered in Qt before 5.15.14, 6.x before 6.2.9, and 6.3.x throug...
vendor_debian·2023·CVSS 5.3
CVE-2023-32762 [MEDIUM] CVE-2023-32762: qt6-base - An issue was discovered in Qt before 5.15.14, 6.x before 6.2.9, and 6.3.x throug...
An issue was discovered in Qt before 5.15.14, 6.x before 6.2.9, and 6.3.x through 6.5.x before 6.5.1. Qt Network incorrectly parses the strict-transport-security (HSTS) header, allowing unencrypted connections to be established, even when explicitly prohibited by the server. This happens if the case used for this header does not exactly match.
Scope: local
bookworm: resolved (fixed in 6.4.2+dfsg-9)
forky: resolved (fixed in 6.4.2+dfsg-9)
sid: resolved (fixed in 6.4.2+dfsg-9)
trixie: resolved (fixed in 6.4.2+dfsg-9)
OSV
qtbase-opensource-src vulnerabilities
osv·2025-09-28·CVSS 7.5
CVE-2023-24607 [HIGH] qtbase-opensource-src vulnerabilities
qtbase-opensource-src vulnerabilities
It was discovered that Qt did not correctly handle certain inputs when
using the SQL ODBC driver plugin. An attacker could possibly use this issue
to cause a denial of service. (CVE-2023-24607)
It was discovered that Qt did not correctly parse certain strict-transport-
security headers. An attacker could possibly use this issue to leak
sensitive information. This issue only affected Ubuntu 20.04 LTS and Ubuntu
22.04 LTS. (CVE-2023-32762)
It was discovered that Qt did not correctly handle certain inputs from DNS
servers. A remote attacker could possibly use this issue to execute
arbitrary code or cause a denial of service. (CVE-2023-33285)
It was discovered that Qt did not correctly validate certain CA
certificates for TLS. An attacker could possibl
GHSA
GHSA-j8jh-fhfw-jx2c: An issue was discovered in Qt before 5
ghsa_unreviewed·2023-05-29
CVE-2023-32762 [MEDIUM] GHSA-j8jh-fhfw-jx2c: An issue was discovered in Qt before 5
An issue was discovered in Qt before 5.15.14, 6.x before 6.2.9, and 6.3.x through 6.5.x before 6.5.1. Qt Network incorrectly parses the strict-transport-security (HSTS) header, allowing unencrypted connections to be established, even when explicitly prohibited by the server. This happens if the case used for this header does not exactly match.
OSV
CVE-2023-32762: An issue was discovered in Qt before 5
osv·2023-05-28·CVSS 5.3
CVE-2023-32762 [MEDIUM] CVE-2023-32762: An issue was discovered in Qt before 5
An issue was discovered in Qt before 5.15.14, 6.x before 6.2.9, and 6.3.x through 6.5.x before 6.5.1. Qt Network incorrectly parses the strict-transport-security (HSTS) header, allowing unencrypted connections to be established, even when explicitly prohibited by the server. This happens if the case used for this header does not exactly match.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
https://codereview.qt-project.org/c/qt/qtbase/+/476140https://github.com/qt/qtbase/commit/1b736a815be0222f4b24289cf17575fc15707305https://lists.debian.org/debian-lts-announce/2024/04/msg00027.htmlhttps://lists.qt-project.org/pipermail/announce/2023-May/000414.htmlhttps://codereview.qt-project.org/c/qt/qtbase/+/476140https://github.com/qt/qtbase/commit/1b736a815be0222f4b24289cf17575fc15707305https://lists.debian.org/debian-lts-announce/2024/04/msg00027.htmlhttps://lists.qt-project.org/pipermail/announce/2023-May/000414.html
2023-05-28
Published