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[cff] Fix another segv in old engine.

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Reported as

  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9872

* src/psaux/cffdecode.c (cff_decoder_parse_charstrings)
[CFF_CONFIG_OPTION_OLD_ENGINE]: Disallow invalid T1 opcodes in
dictionaries.
This commit is contained in:
Werner Lemberg 2018-08-14 10:01:00 +02:00
parent 1937b55734
commit 44db1addd8
2 changed files with 22 additions and 1 deletions
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14
ChangeLog
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@ -1,3 +1,15 @@
2018-08-14 Werner Lemberg <wl@gnu.org>
[cff] Fix another segv in old engine.
Reported as
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9872
* src/psaux/cffdecode.c (cff_decoder_parse_charstrings)
[CFF_CONFIG_OPTION_OLD_ENGINE]: Disallow invalid T1 opcodes in
dictionaries.
2018-08-14 Werner Lemberg <wl@gnu.org>
[cff] Fix missing error handling.
@ -20,7 +32,7 @@
2018-08-14 Werner Lemberg <wl@gnu.org>
[cff] Fix segv.
[cff] Fix segv in old engine.
Reported as

9
src/psaux/cffdecode.c
View File

@ -860,6 +860,15 @@
case cff_op_flex1:
case cff_op_callsubr:
case cff_op_callgsubr:
/* depracated opcodes */
case cff_op_dotsection:
/* invalid Type 1 opcodes */
case cff_op_hsbw:
case cff_op_closepath:
case cff_op_callothersubr:
case cff_op_seac:
case cff_op_sbw:
case cff_op_setcurrentpoint:
goto MM_Error;
default: