Description
An issue was discovered in Qt before 5.11.3. A malformed GIF image causes a NULL pointer dereference in QGifHandler resulting in a segmentation fault.
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 | qtbase-opensource-src | 5.11.3+dfsg-2 | — |
| Debian 13 | qtbase-opensource-src | 5.11.3+dfsg-2 | — |
| Debian 12 | qtbase-opensource-src | 5.11.3+dfsg-2 | — |
| Debian 9 | qt4-x11 | 4:4.8.7+dfsg-11+deb9u1 | DLA-2377-1 |
| Debian 9 | qtbase-opensource-src | 5.7.1+dfsg-3+deb9u1 | DSA-4374-1 |
| Debian 8 | qt4-x11 | 4:4.8.6+git64-g5dc8b2b+dfsg-3+deb8u2 | DLA-1786-1 |
| Debian 8 | qtbase-opensource-src | 5.3.2+dfsg-4+deb8u3 | DLA-1627-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | qtbase-opensource-src | 5.9.5+dfsg-0ubuntu2.1 | USN-4003-1 |
| Ubuntu 16.04 LTS | qtbase-opensource-src | 5.5.1+dfsg-16ubuntu7.6 | USN-4003-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 8 | qt5-qtbase +8 | 5.11.1-7.el8 | RHSA-2019:3390 |
| RHEL 8 | qt5-qttools +12 | 5.11.1-9.el8 | RHSA-2019:3390 |
| RHEL 7 | qt +13 | 1:4.8.7-8.el7 | RHSA-2020:1172 |
| RHEL 7 | qt5-qt3d +89 | 5.9.7-1.el7 | RHSA-2019:2135 |
| RHEL 7 | qt5-qtbase +10 | 5.9.7-2.el7 | RHSA-2019:2135 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 | libqt5-qtbase | 5.9.4-8.18.2 | SUSE-SU-2019:0927-1 |
| SLES 12 SP5 | libqt5-qtbase | 5.6.2-6.22.1 | SUSE-SU-2020:0317-1 |
| SLES 12 SP4 | libqt5-qtbase | 5.6.2-6.22.1 | SUSE-SU-2020:0317-1 |
| SLES 12 SP3 | libqt5-qtbase | 5.6.2-6.22.1 | SUSE-SU-2020:0317-1 |
| SLES 12 SP2 | libqt5-qtbase | 5.6.1-17.13.1 | SUSE-SU-2020:0318-1 |
Show 9 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP1 | libqt5-qtbase | 5.5.1-8.10.1 | SUSE-SU-2020:0319-1 |
| SLES for SAP 12 SP5 | libqt5-qtbase | 5.6.2-6.22.1 | SUSE-SU-2020:0317-1 |
| SLES for SAP 12 SP4 | libqt5-qtbase | 5.6.2-6.22.1 | SUSE-SU-2020:0317-1 |
| SLES for SAP 12 SP3 | libqt5-qtbase | 5.6.2-6.22.1 | SUSE-SU-2020:0317-1 |
| SLES for SAP 12 SP2 | libqt5-qtbase | 5.6.1-17.13.1 | SUSE-SU-2020:0318-1 |
| SLES for SAP 12 SP1 | libqt5-qtbase | 5.5.1-8.10.1 | SUSE-SU-2020:0319-1 |
| SUSE OpenStack Cloud 8 | libqt5-qtbase | 5.6.2-6.22.1 | SUSE-SU-2020:0317-1 |
| SUSE OpenStack Cloud 7 | libqt5-qtbase | 5.6.1-17.13.1 | SUSE-SU-2020:0318-1 |
| SUSE Enterprise Storage 5 | libqt5-qtbase | 5.6.2-6.22.1 | SUSE-SU-2020:0317-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.0 | libqt5-qtbase | 5.9.4-lp150.11.1 | openSUSE-SU-2019:1239-1 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2 | qt +13 | 1:4.8.5-15.amzn2.0.4 | ALAS2-2020-1458 |
| Amazon Linux 2 | qt5-qtbase +10 | 5.9.2-3.amzn2.0.2 | ALAS2-2020-1397 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 8 | qt5-qtbase +8 | 5.11.1-7.el8 | ELSA-2019-3390 |
| Oracle Linux 8 | qt5-qttools +12 | 5.11.1-9.el8 | ELSA-2019-3390 |
| Oracle Linux 7 | qt +13 | 1:4.8.7-8.el7 | ELSA-2020-1172 |
| Oracle Linux 7 | qt5-qt3d +89 | 5.9.7-1.el7 | ELSA-2019-2135 |
| Oracle Linux 7 | qt5-qtbase +10 | 5.9.7-2.el7 | ELSA-2019-2135 |
Advisories 19
- RHSA-2020:1172 Red Hat Security Advisory: qt security update Red Hat Security Advisories (RHSA) · Jun 27, 2026
- RHSA-2019:3390 Red Hat Security Advisory: qt5-qtbase security and bug fix update Red Hat Security Advisories (RHSA) · Jun 27, 2026
- RHSA-2019:2135 Red Hat Security Advisory: qt5 security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Jun 27, 2026
- WID-SEC-2026-1718 QT: Mehrere Schwachstellen BSI CERT-Bund (WID) · May 28, 2026
- USN-4003-1 qtbase-opensource-src vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- DSA-4374-1 qtbase-opensource-src - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-2377-1 qt4-x11 - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-1627-1 qtbase-opensource-src - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-1786-1 qt4-x11 - security update Debian Security (DSA / DLA) · Mar 9, 2026
- openSUSE-SU-2019:1239-1 Security update for libqt5-qtbase SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:0318-1 Security update for libqt5-qtbase SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:0317-1 Security update for libqt5-qtbase SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:0927-1 Security update for libqt5-qtbase SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:0319-1 Security update for libqt5-qtbase SUSE / openSUSE Security Updates · May 2, 2025
- ALAS2-2020-1458 Moderate: qt security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Jul 17, 2020
- ELSA-2020-1172 Moderate: qt security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Apr 6, 2020
- ALAS2-2020-1397 Moderate: qt5-qtbase security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Feb 27, 2020
- ELSA-2019-3390 Moderate: qt5-qtbase security and bug fix update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Nov 14, 2019
- ELSA-2019-2135 Moderate: qt5 security, bug fix, and enhancement update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Aug 13, 2019
References
- https://codereview.qt-project.org/#/c/235998/
- DSA-4374 vendor-advisory
- [debian-lts-announce] 20190103 [SECURITY] [DLA 1627-1] qtbase-opensource-src security update mailing-list
- https://blog.qt.io/blog/2018/12/04/qt-5-11-3-released-important-security-updates/
- openSUSE-SU-2019:1239 vendor-advisory
- [debian-lts-announce] 20190514 [SECURITY] [DLA 1786-1] qt4-x11 security update mailing-list
- USN-4003-1 vendor-advisory
- RHSA-2019:2135 vendor-advisory
- RHSA-2019:3390 vendor-advisory
- [debian-lts-announce] 20200928 [SECURITY] [DLA 2377-1] qt4-x11 security update mailing-list