The gfilecopy function in glib 2.0 sets the permissions of a target file to the permissions of a symbolic link (777), which allows user-assisted local users to modify files of other users, as demonstrated by using Nautilus to modify the permissions of the user home directory.

DISPUTED GLib 2.31.8 and earlier, when the gstrhash function is used, computes hash values without restricting the ability to trigger hash collisions predictably, which allows context-dependent attackers to cause a denial of service (CPU consumption) via crafted input to an application that maintains a hash table. NOTE: this issue may be disputed by the vendor; the existence of the gstrhash function is not a vulnerability in the library, because callers of ghashtablenew and ghashtablenewfull can specify an arbitrary hash function that is appropriate for the application.