Integer Overflow caused by out-of-range left shift in listfdb (master, libming 0.4.8 and earlier)

[hlef]

The readUInt32 function (util/listfdb.c) in libming through 0.4.8 is vulnerable to an integer overflow caused by an out-of-range left shift. This issue also affects the master branch.

Reproduce:
$ listfdb out-of-range-left-shift-in-readUInt32-poc-1.fdb

Output:

Font Name: f
number of glyphs: 1

listfdb.c:160:95: runtime error: left shift of 255 by 24 places cannot be represented in type 'int'

You can find the reproducer here.

[hlef]

Same as #106: This issue is identical to #98 because the code itself is identical (very likely to be duplicate code).