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| author | Sebastian Rasmussen <sebras@gmail.com> | 2016-03-29 15:22:02 +0200 |
|---|---|---|
| committer | Sebastian Rasmussen <sebras@gmail.com> | 2016-03-29 15:23:30 +0200 |
| commit | afef491c2f4651d84315bbaf41daa750854f6fe5 (patch) | |
| tree | 0e34a051bd4475f8fd8330edb1a103d1205164e0 /source/pdf/pdf-crypt.c | |
| parent | 7f0c59655e837b337e652e48c36453a995e55960 (diff) | |
| download | mupdf-afef491c2f4651d84315bbaf41daa750854f6fe5.tar.xz | |
pdf-crypt: Crypt filer keys must be at least of length 40.
This is stated in table 3.22 in PDF Reference 1.7.
Fixes valgrind errors for SIGABRT-090214-045131-116.pdf from bug 695040.
Diffstat (limited to 'source/pdf/pdf-crypt.c')
| -rw-r--r-- | source/pdf/pdf-crypt.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/source/pdf/pdf-crypt.c b/source/pdf/pdf-crypt.c index a26f91a3..bdfdd672 100644 --- a/source/pdf/pdf-crypt.c +++ b/source/pdf/pdf-crypt.c @@ -332,7 +332,7 @@ pdf_parse_crypt_filter(fz_context *ctx, pdf_crypt_filter *cf, pdf_crypt *crypt, fz_throw(ctx, FZ_ERROR_GENERIC, "invalid key length: %d", cf->length); if ((crypt->r == 1 || crypt->r == 2 || crypt->r == 3 || crypt->r == 4) && - (cf->length < 0 || cf->length > 128)) + (cf->length < 40 || cf->length > 128)) fz_throw(ctx, FZ_ERROR_GENERIC, "invalid key length: %d", cf->length); if ((crypt->r == 5 || crypt->r == 6) && cf->length != 256) fz_throw(ctx, FZ_ERROR_GENERIC, "invalid key length: %d", cf->length); |