Debian DLA-117-1 : qt4-x11 security update
High Nessus Plugin ID 82100
SynopsisThe remote Debian host is missing a security update.
Check for buffer overflow in Lookup_MarkMarkPos that may cause crash in this function with certain fonts.
Fix tiff reader to handle TIFFTAG_SAMPLESPERPIXEL for grayscale images. The reader uses QImage::Format_Indexed8, but since the samples per pixel value this should be (non-existent) QImage::Format_Indexed16, causing memory corruption. The fix falls back to the 'normal' way of reading tiff images.
NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
SolutionUpgrade the affected packages.