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| author | Caolán McNamara <caolanm@redhat.com> | 2018-02-07 12:29:32 +0000 |
|---|---|---|
| committer | Thorsten Behrens <Thorsten.Behrens@CIB.de> | 2018-06-01 14:40:19 +0200 |
| commit | 91590515fc5261e506892a94dc8d1e6429cffa1e (patch) | |
| tree | 6195bd5dc4108adb90ef29809abc7714efcd538b | |
| parent | 6fbb3777c099f6186a3a460d9879e80bded76d81 (diff) | |
sanity check cmap table size
Change-Id: I010c2fd221bcd86a62efd9996a0c34930828cb6d
Reviewed-on: https://gerrit.libreoffice.org/49350
Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Michael Stahl <mstahl@redhat.com>
| -rw-r--r-- | vcl/source/fontsubset/sft.cxx | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/vcl/source/fontsubset/sft.cxx b/vcl/source/fontsubset/sft.cxx index 2385d2676033..0d24beaf4428 100644 --- a/vcl/source/fontsubset/sft.cxx +++ b/vcl/source/fontsubset/sft.cxx @@ -1245,6 +1245,12 @@ static void FindCmap(TrueTypeFont *ttf) { const sal_uInt8* table = getTable(ttf, O_cmap); sal_uInt32 table_size = getTableSize(ttf, O_cmap); + if (table_size < 4) + { + SAL_WARN("vcl.fonts", "Parsing error in " << OUString::createFromAscii(ttf->fname) << + "cmap table size too short"); + return; + } sal_uInt16 ncmaps = GetUInt16(table, 2, 1); sal_uInt32 AppleUni = 0; // Apple Unicode sal_uInt32 ThreeZero = 0; /* MS Symbol */ |