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[type1] Fix heap buffer overflow. 

Reported as

  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=36

* src/type1/t1load.c (parse_charstrings): Reject fonts that don't
contain glyph names.
This commit is contained in:
Werner Lemberg 2016-08-26 00:23:27 +02:00
parent 69ce97391c
commit a660e3de42
2 changed files with 17 additions and 0 deletions
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11
ChangeLog
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@ -1,3 +1,14 @@
2016-08-26 Werner Lemberg <wl@gnu.org>
[type1] Fix heap buffer overflow.
Reported as
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=36
* src/type1/t1load.c (parse_charstrings): Reject fonts that don't
contain glyph names.
2016-08-25 Werner Lemberg <wl@gnu.org> 2016-08-25 Werner Lemberg <wl@gnu.org>
[sfnt] Fix previous commit (#48901). [sfnt] Fix previous commit (#48901).

6
src/type1/t1load.c
View File

@ -1776,6 +1776,12 @@
} }
} }
if ( !n )
{
error = FT_THROW( Invalid_File_Format );
goto Fail;
}
loader->num_glyphs = n; loader->num_glyphs = n;
/* if /.notdef is found but does not occupy index 0, do our magic. */ /* if /.notdef is found but does not occupy index 0, do our magic. */