Description
Buffer overflow in the TIFF reader in gui/image/qtiffhandler.cpp in Qt 4.7.4 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via the TIFFTAG_SAMPLESPERPIXEL tag in a greyscale TIFF image with multiple samples per pixel.
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 6.0 | qt4-x11 | 4:4.6.3-4+squeeze2 | DLA-117-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 6 | qt +10 | 1:4.6.2-17.el6_1.1 | RHSA-2011:1328, RHSA-2011:1323 |
Advisories 3
- RHSA-2011:1323 Red Hat Security Advisory: qt security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- RHSA-2011:1328 Red Hat Security Advisory: qt security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- DLA-117-1 qt4-x11 - security update Debian Security (DSA / DLA) · Mar 9, 2026
References
- 46371 third-party-advisory
- USN-1504-1 vendor-advisory
- 46140 third-party-advisory
- [oss-security] 20120824 Re: CVE request: libqt4: two memory issues mailing-list
- GLSA-201206-02 vendor-advisory
- openSUSE-SU-2011:1119 vendor-advisory
- 46410 third-party-advisory
- qt-grayscale-bo(69975) vdb-entry
- [oss-security] 20120822 CVE request: libqt4: two memory issues mailing-list
- https://qt.gitorious.org/qt/qt/commit/cb6380beb81ab9571c547270c144988781fed465
- 46128 third-party-advisory
- 46187 third-party-advisory
- 49895 third-party-advisory
- https://bugzilla.novell.com/show_bug.cgi?id=637275
- 49383 third-party-advisory
- 49724 vdb-entry
- FEDORA-2011-12145 vendor-advisory
- RHSA-2011:1323 vendor-advisory
- SUSE-SU-2011:1113 vendor-advisory
- RHSA-2011:1328 vendor-advisory
- 75653 vdb-entry
- openSUSE-SU-2011:1120 vendor-advisory