Description
Multiple buffer overflows in plugins/imageformats/ico/qicohandler.cpp in the QtBase module in Qt before 4.8.7 and 5.x before 5.4.2 allow remote attackers to cause a denial of service (segmentation fault and crash) and possibly execute arbitrary code via a crafted ICO image.
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 |
Advisories 4
- 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
- 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
References
- FEDORA-2015-6114 vendor-advisory
- 74307 vdb-entry
- FEDORA-2015-6123 vendor-advisory
- 74310 vdb-entry
- GLSA-201603-10 vendor-advisory
- FEDORA-2015-6315 vendor-advisory
- FEDORA-2015-6364 vendor-advisory
- USN-2626-1 vendor-advisory
- [Announce] 20150413 Qt Project Security Advisory - Multiple Vulnerabilities in Qt Image Format Handling mailing-list
- FEDORA-2015-6252 vendor-advisory