search for: bdfreadproperti

...visory about BDF font parsing bugs. Like libXfont 1.5.0, it requires fontsproto 2.1.3 or later and will not build cleanly with older versions. Alan Coopersmith (6): Remove unneeded checks for #ifndef X_NOT_POSIX Use 'imdent' to realign cpp indentation levels in fslibos.h bdfReadProperties: property count needs range check [CVE-2015-1802] bdfReadCharacters: bailout if a char's bitmap cannot be read [CVE-2015-1803] bdfReadCharacters: ensure metrics fit into xCharInfo struct [CVE-2015-1804] libXfont 1.5.1 Christos Zoulas (1): Set close-on-exec for font fi...

This release of libXfont provides the fixes for today's security advisory about BDF font parsing bugs. Like libXfont 1.4.8, it requires fontsproto 2.1.2 or earlier and will not build cleanly with newer versions. Alan Coopersmith (4): bdfReadProperties: property count needs range check [CVE-2015-1802] bdfReadCharacters: bailout if a char's bitmap cannot be read [CVE-2015-1803] bdfReadCharacters: ensure metrics fit into xCharInfo struct [CVE-2015-1804] libXfont 1.4.9 Christos Zoulas (1): Set close-on-exec for font fi...

...leged user with access to the X server can tell the X server to read a given font file from a path of their choosing, these vulnerabilities have the potential to allow unprivileged users to run code with the privileges of the X server (often root access). The vulnerabilities are: - CVE-2015-1802: bdfReadProperties: property count needs range check The bdf parser reads a count for the number of properties defined in a font from the font file, and allocates arrays with entries for each property based on that count. It never checked to see if that count was negative, or large enough to overf...