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kernel32: Avoid unprotected sprintf on registry/user-supplied format string.

oldstable
Jörg Höhle 2009-07-01 09:53:15 +02:00 committed by Alexandre Julliard
parent 62a2196887
commit c3b8026789
1 changed files with 5 additions and 4 deletions
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9
dlls/kernel32/except.c
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@ -265,15 +265,16 @@ static BOOL start_debugger(PEXCEPTION_POINTERS epointers, HANDLE hEvent)
if (format)
{
cmdline = HeapAlloc(GetProcessHeap(), 0, strlen(format) + 2*20);
sprintf(cmdline, format, GetCurrentProcessId(), hEvent);
size_t format_size = strlen(format) + 2*20;
cmdline = HeapAlloc(GetProcessHeap(), 0, format_size);
snprintf(cmdline, format_size, format, (long)GetCurrentProcessId(), (long)HandleToLong(hEvent));
HeapFree(GetProcessHeap(), 0, format);
}
else
{
cmdline = HeapAlloc(GetProcessHeap(), 0, 80);
sprintf(cmdline, "winedbg --auto %d %ld",
GetCurrentProcessId(), (ULONG_PTR)hEvent);
snprintf(cmdline, 80, "winedbg --auto %ld %ld", /* as in tools/wine.inf */
(long)GetCurrentProcessId(), (long)HandleToLong(hEvent));
}
if (!bAuto)