The bdfReadCharacters function in bitmap/bdfread.c in X.Org libXfont before 1.4.9 and 1.5.x before 1.5.1 does not properly handle character bitmaps it cannot read, which allows remote authenticated users to cause a denial of service (NULL pointer dereference and crash) and possibly execute arbitrary code via a crafted BDF font file.
Name | Vendor | Start Version | End Version |
---|---|---|---|
Ubuntu_linux | Canonical | 12.04 | 12.04 |
Debian_linux | Debian | 7.0 | 7.0 |
Ubuntu_linux | Canonical | 14.10 | 14.10 |
Ubuntu_linux | Canonical | 14.04 | 14.04 |
Ubuntu_linux | Canonical | 10.04 | 10.04 |