Description
In Qt before 5.15.14, 6.0.x through 6.2.x before 6.2.9, and 6.3.x through 6.5.x before 6.5.1, QtSvg QSvgFont m_unitsPerEm initialization is mishandled.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | qt6-svg | 6.4.2-2 | — |
| Debian 14 | qtsvg-opensource-src | 5.15.8-3 | — |
| Debian 13 | qt6-svg | 6.4.2-2 | — |
| Debian 13 | qtsvg-opensource-src | 5.15.8-3 | — |
| Debian 12 | qt6-svg | 6.4.2-2 | — |
| Debian 12 | qtsvg-opensource-src | 5.15.8-3 | — |
| Debian 10 | qt4-x11 | 4:4.8.7+dfsg-18+deb10u2 | DLA-3539-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | qt6-svg | No fix yet | — |
| Ubuntu 26.04 LTS | qt6-svg | No fix yet | — |
| Ubuntu 25.10 | qt6-svg | No fix yet | — |
| Ubuntu 24.04 LTS | qt6-svg | No fix yet | — |
| Ubuntu 22.04 LTS | qt6-svg | No fix yet | — |
Show 4 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 22.04 LTS | qtsvg-opensource-src | 5.15.3-1ubuntu0.1~esm1 | USN-8337-1 |
| Ubuntu Pro 20.04 LTS | qtsvg-opensource-src | 5.12.8-0ubuntu1+esm1 | USN-8337-1 |
| Ubuntu Pro 18.04 LTS | qtsvg-opensource-src | 5.9.5-0ubuntu1.1+esm1 | USN-8337-1 |
| Ubuntu Pro 16.04 LTS | qtsvg-opensource-src | 5.5.1-2ubuntu0.1~esm1 | USN-8337-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9 | qt5 +3 | 5.15.9-1.el9 | RHSA-2023:6369 |
| RHEL 9 | qt5-qtbase +9 | 5.15.9-7.el9 | RHSA-2023:6369 |
| RHEL 8 | qt5-qtsvg +2 | 5.15.3-2.el8 | RHSA-2023:6961 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 9 | qt5 +3 | 5.15.9-1.el9 | ALSA-2023:6369 |
| AlmaLinux 9 | qt5-qtbase +9 | 5.15.9-7.el9 | ALSA-2023:6369 |
| AlmaLinux 8 | qt5-qtsvg +2 | 5.15.3-2.el8 | ALSA-2023:6961 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 9 | adwaita-qt | 1.4.2-1.el9 | RLSA-2023:6369 |
| Rocky Linux 9 | python-pyqt5-sip | 12.11.1-1.el9.0.1 | RLSA-2023:6369 |
| Rocky Linux 9 | qgnomeplatform | 0.9.0-1.el9 | RLSA-2023:6369 |
| Rocky Linux 9 | qt5 +17 | 5.15.9-1.el9 | RLSA-2023:6369 |
| Rocky Linux 9 | qt5-qtdeclarative | 5.15.9-3.el9 | RLSA-2023:6369 |
| Rocky Linux 9 | qt5-qtsvg +3 | 5.15.9-2.el9 | RLSA-2023:6369 |
| Rocky Linux 8 | qt5-qtsvg | 5.15.3-2.el8 | RLSA-2023:6961 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP5 | libqt5-qtsvg | 5.15.8+kde8-150500.3.3.1 | SUSE-SU-2023:2969-1 |
| SLES 15 SP4 | libqt5-qtsvg | 5.15.2+kde16-150400.3.3.1 | SUSE-SU-2023:2981-1 |
| SLES 12 SP5 | libqt4 +2 | 4.8.7-8.19.1 | SUSE-SU-2025:02968-1, SUSE-SU-2023:4622-1 |
| SLES 12 SP5 | libqt5-qtsvg | 5.6.2-3.11.1 | SUSE-SU-2023:2967-1 |
Show 5 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 SP5 | libqt4 +2 | 4.8.7-8.19.1 | SUSE-SU-2023:4622-1 |
| SLES for SAP 12 SP5 | libqt5-qtsvg | 5.6.2-3.11.1 | SUSE-SU-2023:2967-1 |
| SLE Real Time 15 SP3 | libqt5-qtsvg | 5.12.7-150200.3.8.1 | SUSE-SU-2023:3209-1 |
| SUSE Package Hub 15 SP4 | qt6-svg +1 | 6.2.2-bp154.2.3.1 | openSUSE-SU-2023:0111-1 |
| SUSE Manager Server 4.2 | libqt5-qtsvg | 5.12.7-150200.3.8.1 | SUSE-SU-2023:3209-1 |
| SUSE Manager Proxy 4.2 | libqt5-qtsvg | 5.12.7-150200.3.8.1 | SUSE-SU-2023:3209-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.5 | libqt5-qtsvg | 5.15.8+kde8-150500.3.3.1 | SUSE-SU-2023:2969-1 |
| openSUSE Leap 15.4 | libqt5-qtsvg | 5.15.2+kde16-150400.3.3.1 | SUSE-SU-2023:2981-1 |
| openSUSE Leap 15.4 | qt6-svg +1 | 6.2.2-bp154.2.3.1 | openSUSE-SU-2023:0111-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | qt6-qtsvg | 6.5.0-r1 | — |
| Alpine v3.23 | qt6-qtsvg | 6.5.0-r1 | — |
| Alpine v3.22 | qt6-qtsvg | 6.5.0-r1 | — |
| Alpine v3.21 | qt6-qtsvg | 6.5.0-r1 | — |
| Alpine v3.20 | qt6-qtsvg | 6.5.0-r1 | — |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | qt6-qtsvg | 6.5.0-r1 | — |
| Alpine v3.18 | qt6-qtsvg | 6.5.0-r1 | — |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2 | qt +13 | 1:4.8.5-15.amzn2.0.8 | ALAS2-2025-2847 |
| Amazon Linux 2 | qt5-qtsvg +3 | 5.9.2-1.amzn2.0.3 | ALAS2-2023-2092 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 2 (CBL-Mariner) | qt5-qtsvg | 5.15.9-1 | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 9 | adwaita-qt5 +1 | 1.4.2-1.el9 | ELSA-2023-6369 |
| Oracle Linux 9 | python3-pyqt5-sip | 12.11.1-1.el9 | ELSA-2023-6369 |
| Oracle Linux 9 | qgnomeplatform | 0.9.0-1.el9 | ELSA-2023-6369 |
| Oracle Linux 9 | qt5 +66 | 5.15.9-1.el9 | ELSA-2023-6369 |
| Oracle Linux 9 | qt5-qtbase +9 | 5.15.9-7.el9 | ELSA-2023-6369 |
| Oracle Linux 9 | qt5-qtsvg +11 | 5.15.9-2.el9 | ELSA-2023-6369 |
| Oracle Linux 9 | qt5-qttools +16 | 5.15.9-3.el9 | ELSA-2023-6369 |
| Oracle Linux 8 | qt5-qtsvg +2 | 5.15.3-2.el8 | ELSA-2023-6961 |
Advisories 23
- ALSA-2023:6369 Moderate: qt5 security and bug fix update AlmaLinux Security Advisories · Nov 9, 2026
- WID-SEC-2023-1187 QT: Schwachstelle ermöglicht nicht spezifizierten Angriff BSI CERT-Bund (WID) · Nov 8, 2026
- RLSA-2023:6961 Low: qt5-qtsvg security update Rocky Linux Security Advisories · Nov 7, 2026
- ALSA-2023:6961 Low: qt5-qtsvg security update AlmaLinux Security Advisories · Oct 29, 2026
- WID-SEC-2023-2917 Xerox FreeFlow Print Server: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jun 30, 2026
- RHSA-2023:6369 Red Hat Security Advisory: qt5 security and bug fix update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- RLSA-2023:6369 Moderate: qt5 security and bug fix update Rocky Linux Security Advisories · Jun 25, 2026
- USN-8337-1 qtsvg-opensource-src vulnerabilities Ubuntu Security Notices (USN) · May 28, 2026
- DLA-3539-1 qt4-x11 - security update Debian Security (DSA / DLA) · Mar 9, 2026
- openSUSE-SU-2023:0111-1 Security update for qt6-svg SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:2969-1 Security update for libqt5-qtsvg SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:3209-1 Security update for libqt5-qtsvg SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:4622-1 Security update for libqt4 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2025:02968-1 Security update for libqt4 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:2981-1 Security update for libqt5-qtsvg SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:2967-1 Security update for libqt5-qtsvg SUSE / openSUSE Security Updates · Feb 4, 2026
- RHSA-2023:6961 Red Hat Security Advisory: qt5-qtsvg security update Red Hat Security Advisories (RHSA) · Nov 22, 2025
- ALAS2-2025-2847 Moderate: qt security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Apr 30, 2025
- ICSA-24-046-11 Siemens SCALANCE XCM-/XRM-300 CISA ICS & IT advisories · Feb 13, 2024
- SSA-806742 SSA-806742: Multiple Vulnerabilities in SCALANCE XCM-/XRM-300 before V2.4 Siemens ProductCERT · Feb 13, 2024
- ELSA-2023-6961 Low: qt5-qtsvg security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Nov 17, 2023
- ELSA-2023-6369 Moderate: qt5 security and bug fix update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Nov 12, 2023
- ALAS2-2023-2092 Moderate: qt5-qtsvg security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Jun 29, 2023