[Libreoffice-commits] core.git: sw/source

[Caolán McNamara]

 sw/source/filter/ww8/ww8par.cxx |   12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

New commits:
commit f5c0d7508b972898153bbf4069c9ea48f53d64d5
Author: Caolán McNamara <caolanm at redhat.com>
Date:   Sun May 7 14:56:51 2017 +0100

    ofz check against expected struct size
    
    don't copy vector and const up as well
    
    Change-Id: Ia9c9dd9e0dee2300f8f60eec15b67e4a349c8a93

diff --git a/sw/source/filter/ww8/ww8par.cxx b/sw/source/filter/ww8/ww8par.cxx
index e6c87cf0d852..aa22f3a9e6da 100644
--- a/sw/source/filter/ww8/ww8par.cxx
+++ b/sw/source/filter/ww8/ww8par.cxx
@@ -4979,10 +4979,14 @@ sal_uLong SwWW8ImplReader::CoreLoad(WW8Glossary *pGloss)
 
     for (size_t i=0; i < aLinkStrings.size() && i < aStringIds.size(); ++i)
     {
-        ww::bytes stringId = aStringIds[i];
-        WW8_STRINGID *stringIdStruct = reinterpret_cast<WW8_STRINGID*>(&stringId[0]);
-        m_aLinkStringMap[SVBT16ToShort(stringIdStruct->nStringId)] =
-            aLinkStrings[i];
+        const ww::bytes& stringId = aStringIds[i];
+        if (stringId.size() < sizeof(WW8_STRINGID))
+        {
+            SAL_WARN("sw.ww8", "SwWW8ImplReader::CoreLoad: WW8_STRINGID is too short");
+            continue;
+        }
+        const WW8_STRINGID *stringIdStruct = reinterpret_cast<const WW8_STRINGID*>(stringId.data());
+        m_aLinkStringMap[SVBT16ToShort(stringIdStruct->nStringId)] = aLinkStrings[i];
     }
 
     ReadDocVars(); // import document variables as meta information.