CVE-2015-0295

The builtin BMP decoder in QtGui prior to Qt 5.5 contained a bug that would lead to a divsion by zero when loading certain corrupt BMP files (CVE-2015-0295). This in turn would cause the application loading these hand crafted BMPs to crash. Qt3, Qt4 and qtbase5 have been patched to prevent this division by zero.

These are all security issues fixed in the libqt4-32bit-4.8.7-5.4 package on the GA media of openSUSE Tumbleweed.

These are all security issues fixed in the qt3-3.3.8c-140.6 package on the GA media of openSUSE Tumbleweed.

These are all security issues fixed in the libQt5Bootstrap-devel-static-32bit-5.7.0-2.2 package on the GA media of openSUSE Tumbleweed.

The libqt4 library was updated to fix several security issues:

* CVE-2015-0295: Division by zero when processing malformed BMP files.
  (bsc#921999)
* CVE-2015-1858: Segmentation fault in BMP Qt Image Format Handling.
  (bsc#927806)
* CVE-2015-1859: Segmentation fault in ICO Qt Image Format Handling.
  (bsc#927807)
* CVE-2015-1860: Segmentation fault in GIF Qt Image Format Handling.
  (bsc#927808)

Security Issues:

* CVE-2015-1858
  <http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-1858>
* CVE-2015-1859
  <http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-1859>
* CVE-2015-1860
  <http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-1860>
* CVE-2015-0295
  <http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-0295>

The libqt4 library was updated to fix several security and non security issues.

The following vulnerabilities were fixed:

• bsc#921999: CVE-2015-0295: division by zero when processing malformed BMP files
• bsc#927806: CVE-2015-1858: segmentation fault in BMP Qt Image Format Handling
• bsc#927807: CVE-2015-1859: segmentation fault in ICO Qt Image Format Handling
• bsc#927808: CVE-2015-1860: segmentation fault in GIF Qt Image Format Handling

The following non-secuirty issues were fixed:

• bsc#929688: Critical Problem in Qt Network Stack
• bsc#847880: kde/qt rendering error in qemu cirrus i586
• Update use-freetype-default.diff to use same method as with libqt5-qtbase package: Qt itself already does runtime check whether subpixel rendering is available, but only when FT_CONFIG_OPTION_SUBPIXEL_RENDERING is defined. Thus it is enough to only remove that condition
• The -devel subpackage requires Mesa-devel, not only at build time
• Fixed compilation on SLE_11_SP3 by making it build against Mesa-devel on that system
• Replace patch l-qclipboard_fix_recursive.patch with qtcore-4.8.5-qeventdispatcher-recursive.patch. The later one seems to work better and really resolves the issue in LibreOffice
• Added kde4_qt_plugin_path.patch, so kde4 plugins are magically found/known outside kde4 enviroment/session
• added _constraints. building took up to 7GB of disk space on s390x, and more than 6GB on x86_64
• Add 3 patches for Qt bugs to make LibreOffice KDE4 file picker work properly again:
  • Add glib-honor-ExcludeSocketNotifiers-flag.diff (QTBUG-37380)
  • Add l-qclipboard_fix_recursive.patch (QTBUG-34614)
  • Add l-qclipboard_delay.patch (QTBUG-38585)

This security update fixes the following issues:

• Add libqt5-Fix-a-division-by-zero-processing-malformed-BMP.patch
  • QTBUG-44547, bsc#921999 (CVE-2015-0295)
• Add libqt5-Fixes-crash-in-bmp-and-ico-image-decoding.patch
  • bsc#927806 (CVE-2015-1858), bsc#927807 (CVE-2015-1859)
• Add libqt5-Fixes-crash-in-gif-image-decoder.patch
  • bsc#927808 (CVE-2015-1860)
• Add libqt5-fix-use-after-free-bug.patch from upstream
  • fixes the use-after-free bug in backingstore, boo#870151

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.

Wolfgang Schenk discovered that Qt incorrectly handled certain malformed GIF images. If a user or automated system were tricked into opening a specially crafted GIF image, a remote attacker could use this issue to cause Qt to crash, resulting in a denial of service. This issue only applied to Ubuntu 12.04 LTS and Ubuntu 14.04 LTS. (CVE-2014-0190)

Fabian Vogt discovered that Qt incorrectly handled certain malformed BMP images. If a user or automated system were tricked into opening a specially crafted BMP image, a remote attacker could use this issue to cause Qt to crash, resulting in a denial of service. (CVE-2015-0295)

Richard Moore and Fabian Vogt discovered that Qt incorrectly handled certain malformed BMP images. If a user or automated system were tricked into opening a specially crafted BMP image, a remote attacker could use this issue to cause Qt to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2015-1858)

Richard Moore and Fabian Vogt discovered that Qt incorrectly handled certain malformed ICO images. If a user or automated system were tricked into opening a specially crafted ICO image, a remote attacker could use this issue to cause Qt to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2015-1859)

Richard Moore and Fabian Vogt discovered that Qt incorrectly handled certain malformed GIF images. If a user or automated system were tricked into opening a specially crafted GIF image, a remote attacker could use this issue to cause Qt to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2015-1860)