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freetype2
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Code Issues 4 Releases Wiki Activity

[truetype] Integer overflow. 

Reported as

  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2455

* src/truetype/ttinterp.c (Ins_SCFS): Use SUB_LONG.
This commit is contained in:
Werner Lemberg 2017-07-03 06:27:52 +02:00
parent abeb28f161
commit ca799e9be5
2 changed files with 11 additions and 1 deletions
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@ -1,3 +1,13 @@
2017-07-03 Werner Lemberg <wl@gnu.org>
[truetype] Integer overflow.
Reported as
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=2455
* src/truetype/ttinterp.c (Ins_SCFS): Use SUB_LONG.
2017-07-01 Alexei Podtelezhnikov <apodtele@gmail.com>
* src/sfnt/sfobjs.c (sfnt_load_face): Ignore No_Unicode_Glyph_Name.

2
src/truetype/ttinterp.c
View File

@ -4803,7 +4803,7 @@
K = FAST_PROJECT( &exc->zp2.cur[L] );
exc->func_move( exc, &exc->zp2, L, args[1] - K );
exc->func_move( exc, &exc->zp2, L, SUB_LONG( args[1], K ) );
/* UNDOCUMENTED! The MS rasterizer does that with */
/* twilight points (confirmed by Greg Hitchcock) */