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Fixed missing input checks for file contents request 

reported by Valentino Ricotta (Thalium)
This commit is contained in:
Armin Novak 2021-07-22 10:20:52 +02:00 committed by akallabeth
parent fb3f85779b
commit 0d79670a28
1 changed files with 4 additions and 0 deletions
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4
client/Windows/wf_cliprdr.c
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@ -2363,6 +2363,8 @@ wf_cliprdr_server_file_contents_request(CliprdrClientContext* context,
{
if (fileContentsRequest->dwFlags == FILECONTENTS_SIZE)
{
if (clipboard->nFiles <= fileContentsRequest->listIndex)
goto error;
*((UINT32*)&pData[0]) =
clipboard->fileDescriptor[fileContentsRequest->listIndex]->nFileSizeLow;
*((UINT32*)&pData[4]) =
@ -2372,6 +2374,8 @@ wf_cliprdr_server_file_contents_request(CliprdrClientContext* context,
else if (fileContentsRequest->dwFlags == FILECONTENTS_RANGE)
{
BOOL bRet;
if (clipboard->nFiles <= fileContentsRequest->listIndex)
goto error;
bRet = wf_cliprdr_get_file_contents(
clipboard->file_names[fileContentsRequest->listIndex], pData,
fileContentsRequest->nPositionLow, fileContentsRequest->nPositionHigh, cbRequested,