Description
The BMP decoder in QtGui in QT before 5.5 does not properly calculate the masks used to extract the color components, which allows remote attackers to cause a denial of service (divide-by-zero and crash) via a crafted BMP file.
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 | 5.3.2+dfsg-5 | — |
| Debian 13 | qtbase-opensource-src | 5.3.2+dfsg-5 | — |
| Debian 12 | qtbase-opensource-src | 5.3.2+dfsg-5 | — |
| Debian 6.0 | qt4-x11 | 4:4.6.3-4+squeeze3 | DLA-210-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 14.04 LTS | qt4-x11 | 4:4.8.5+git192-g085f851+dfsg-2ubuntu4.1 | USN-2626-1 |
| Ubuntu 14.04 LTS | qtbase-opensource-src | 5.2.1+dfsg-1ubuntu14.3 | USN-2626-1 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 | libqt4 | 4.8.6-4.2 | SUSE-SU-2015:1359-1 |
| SLES 12 | libqt4-devel-doc | 4.8.6-4.6 | SUSE-SU-2015:1359-1 |
| SLES 12 | libqt4-sql-plugins | 4.8.6-4.1 | SUSE-SU-2015:1359-1 |
| SLES 12 | libqt5-qtbase | 5.3.1-4.4.2 | SUSE-SU-2015:1383-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 | libqt4 | 4.8.6-4.2 | SUSE-SU-2015:1359-1 |
| SLES for SAP 12 | libqt4-devel-doc | 4.8.6-4.6 | SUSE-SU-2015:1359-1 |
| SLES for SAP 12 | libqt4-sql-plugins | 4.8.6-4.1 | SUSE-SU-2015:1359-1 |
| SLES for SAP 12 | libqt5-qtbase | 5.3.1-4.4.2 | SUSE-SU-2015:1383-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | libqt5-qtbase | 5.7.0-2.2 | openSUSE-SU-2024:10456-1 |
| openSUSE Tumbleweed | qt3 | 3.3.8c-140.6 | openSUSE-SU-2024:10287-1 |
Advisories 6
- USN-2626-1 qt4-x11, qtbase-opensource-src vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- DLA-210-1 qt4-x11 - security update Debian Security (DSA / DLA) · Mar 9, 2026
- openSUSE-SU-2024:10456-1 libQt5Bootstrap-devel-static-32bit-5.7.0-2.2 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2015:1383-1 Security update for libqt5-qtbase SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2015:1359-1 Security update for libqt4 SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:10287-1 qt3-3.3.8c-140.6 on GA media SUSE / openSUSE Security Updates · May 7, 2025
References
- 73029 vdb-entry
- [Announce] 20150227 Qt Security Advisory: DoS vulnerability in the BMP image handler mailing-list
- FEDORA-2015-2866 vendor-advisory
- FEDORA-2015-2901 vendor-advisory
- openSUSE-SU-2015:0573 vendor-advisory
- FEDORA-2015-2886 vendor-advisory
- FEDORA-2015-2895 vendor-advisory
- USN-2626-1 vendor-advisory
- FEDORA-2015-2897 vendor-advisory
- FEDORA-2015-2869 vendor-advisory