Description
An issue was discovered in Qt before 5.15.15, 6.x before 6.2.9, and 6.3.x through 6.5.x before 6.5.1. When a SVG file with an image inside it is rendered, a QTextLayout buffer overflow can be triggered.
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-base | 6.4.2+dfsg-8 | — |
| Debian 14 | qtbase-opensource-src | 5.15.8+dfsg-10 | — |
| Debian 14 | qtbase-opensource-src-gles | 5.15.8+dfsg-3 | — |
| Debian 13 | qt6-base | 6.4.2+dfsg-8 | — |
| Debian 13 | qtbase-opensource-src | 5.15.8+dfsg-10 | — |
| Debian 13 | qtbase-opensource-src-gles | 5.15.8+dfsg-3 | — |
| Debian 12 | qt6-base | 6.4.2+dfsg-8 | — |
| Debian 12 | qtbase-opensource-src | 5.15.8+dfsg-10 | — |
| Debian 12 | qtbase-opensource-src-gles | 5.15.8+dfsg-3 | — |
| Debian 10 | qt4-x11 | 4:4.8.7+dfsg-18+deb10u2 | DLA-3539-1 |
| Debian 10 | qtbase-opensource-src | 5.11.3+dfsg1-1+deb10u6 | DLA-3805-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | qt6-base +1 | No fix yet | — |
| Ubuntu 26.04 LTS | qt6-base +1 | No fix yet | — |
| Ubuntu 25.10 | qt6-base +1 | No fix yet | — |
| Ubuntu 24.04 LTS | qt6-base +1 | No fix yet | — |
| Ubuntu 22.04 LTS | qt6-base +2 | No fix yet | — |
Show 4 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | qtbase-opensource-src-gles | No fix yet | — |
| Ubuntu 16.04 LTS | qtbase-opensource-src-gles | No fix yet | — |
| Ubuntu Pro 20.04 LTS | qtbase-opensource-src | No fix yet | — |
| Ubuntu Pro 18.04 LTS | qtbase-opensource-src | No fix yet | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP5 | libqt5-qtbase | 5.15.8+kde185-150500.4.3.1 | SUSE-SU-2023:2824-1 |
| SLES 15 SP5 | qt6-base | 6.4.2-150500.3.3.1 | SUSE-SU-2023:2780-1 |
| SLES 15 SP4 | libqt5-qtbase | 5.15.2+kde294-150400.6.6.1 | SUSE-SU-2023:2982-1 |
| SLES 15 SP4 | qt6-base | 6.2.2-150400.4.6.1 | SUSE-SU-2023:3380-1 |
| SLES 15 SP3 | libqt5-qtbase | 5.12.7-150200.4.20.1 | SUSE-SU-2023:2860-1 |
| SLES 15 SP2 | libqt5-qtbase | 5.12.7-150200.4.20.1 | SUSE-SU-2023:2860-1 |
| 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-qtbase | 5.6.2-6.33.1 | SUSE-SU-2023:2816-1 |
Show 14 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP4 | libqt5-qtbase | 5.6.2-6.33.1 | SUSE-SU-2023:2816-1 |
| SLES for SAP 15 SP3 | libqt5-qtbase | 5.12.7-150200.4.20.1 | SUSE-SU-2023:2860-1 |
| SLES for SAP 15 SP2 | libqt5-qtbase | 5.12.7-150200.4.20.1 | SUSE-SU-2023:2860-1 |
| SLES for SAP 12 SP5 | libqt4 +2 | 4.8.7-8.19.1 | SUSE-SU-2023:4622-1 |
| SLES for SAP 12 SP5 | libqt5-qtbase | 5.6.2-6.33.1 | SUSE-SU-2023:2816-1 |
| SLES for SAP 12 SP4 | libqt5-qtbase | 5.6.2-6.33.1 | SUSE-SU-2023:2816-1 |
| SLE Real Time 15 SP3 | libqt5-qtbase | 5.12.7-150200.4.20.1 | SUSE-SU-2023:2860-1 |
| SLE HPC 15 SP3 | libqt5-qtbase | 5.12.7-150200.4.20.1 | SUSE-SU-2023:2860-1 |
| SLE HPC 15 SP2 | libqt5-qtbase | 5.12.7-150200.4.20.1 | SUSE-SU-2023:2860-1 |
| SUSE OpenStack Cloud Crowbar 9 | libqt5-qtbase | 5.6.2-6.33.1 | SUSE-SU-2023:2816-1 |
| SUSE OpenStack Cloud 9 | libqt5-qtbase | 5.6.2-6.33.1 | SUSE-SU-2023:2816-1 |
| SUSE Manager Server 4.2 | libqt5-qtbase | 5.12.7-150200.4.20.1 | SUSE-SU-2023:2860-1 |
| SUSE Manager Proxy 4.2 | libqt5-qtbase | 5.12.7-150200.4.20.1 | SUSE-SU-2023:2860-1 |
| SUSE Enterprise Storage 7.1 | libqt5-qtbase | 5.12.7-150200.4.20.1 | SUSE-SU-2023:2860-1 |
| SUSE Enterprise Storage 7 | libqt5-qtbase | 5.12.7-150200.4.20.1 | SUSE-SU-2023:2860-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | libqt5-qtbase | 5.15.9+kde154-1.1 | openSUSE-SU-2024:12955-1 |
| openSUSE Tumbleweed | qt6-base | 6.5.2-2.1 | openSUSE-SU-2024:13147-1 |
| openSUSE Leap 15.5 | libqt5-qtbase | 5.15.8+kde185-150500.4.3.1 | SUSE-SU-2023:2824-1 |
| openSUSE Leap 15.5 | qt6-base +1 | 6.4.2-150500.3.3.1 | SUSE-SU-2023:2780-1 |
| openSUSE Leap 15.4 | libqt5-qtbase | 5.15.2+kde294-150400.6.6.1 | SUSE-SU-2023:2982-1 |
| openSUSE Leap 15.4 | qt6-base +1 | 6.2.2-150400.4.6.1 | SUSE-SU-2023:3380-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | qt5-qtbase | 5.15.9_git20230505-r0 | — |
| Alpine v3.24 | qt6-qtbase | 6.5.0-r5 | — |
| Alpine v3.23 | qt5-qtbase | 5.15.9_git20230505-r0 | — |
| Alpine v3.23 | qt6-qtbase | 6.5.0-r5 | — |
| Alpine v3.22 | qt5-qtbase | 5.15.9_git20230505-r0 | — |
| Alpine v3.22 | qt6-qtbase | 6.5.0-r5 | — |
| Alpine v3.21 | qt5-qtbase | 5.15.9_git20230505-r0 | — |
| Alpine v3.21 | qt6-qtbase | 6.5.0-r5 | — |
| Alpine v3.20 | qt5-qtbase | 5.15.9_git20230505-r0 | — |
| Alpine v3.20 | qt6-qtbase | 6.5.0-r5 | — |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | qt5-qtbase | 5.15.9_git20230505-r0 | — |
| Alpine v3.19 | qt6-qtbase | 6.5.0-r5 | — |
| Alpine v3.18 | qt5-qtbase | 5.15.9_git20230505-r0 | — |
| Alpine v3.18 | qt6-qtbase | 6.5.0-r5 | — |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2 | qt5-qtbase +10 | 5.9.2-3.amzn2.0.8 | ALAS2-2023-2159 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 2 (CBL-Mariner) | qt5-qtbase | 5.12.11-8 | — |
Advisories 15
- WID-SEC-2023-2917 Xerox FreeFlow Print Server: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jun 30, 2026
- DLA-3539-1 qt4-x11 - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-3805-1 qtbase-opensource-src - security update Debian Security (DSA / DLA) · Mar 9, 2026
- openSUSE-SU-2024:12955-1 libQt5Bootstrap-devel-static-32bit-5.15.9+kde154-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:2780-1 Security update for qt6-base 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-2023:3380-1 Security update for qt6-base SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:2982-1 Security update for libqt5-qtbase SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:2824-1 Security update for libqt5-qtbase SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:2860-1 Security update for libqt5-qtbase SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2025:02968-1 Security update for libqt4 SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:13147-1 libQt6Concurrent6-6.5.2-2.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2023-1294 QT: Mehrere Schwachstellen BSI CERT-Bund (WID) · Sep 28, 2025
- SUSE-SU-2023:2816-1 Security update for libqt5-qtbase SUSE / openSUSE Security Updates · May 2, 2025
- ALAS2-2023-2159 Moderate: qt5-qtbase security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Jul 25, 2023
References
- https://codereview.qt-project.org/c/qt/qtbase/+/476125
- https://lists.qt-project.org/pipermail/announce/2023-May/000413.html
- [debian-lts-announce] 20230822 [SECURITY] [DLA 3539-1] qt4-x11 security update mailing-list
- GLSA-202402-03 vendor-advisory
- [debian-lts-announce] 20240430 [SECURITY] [DLA 3805-1] qtbase-opensource-src security update mailing-list