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Disallow negative size values in BinaryBlob

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This commit is contained in:
Ethan Lee 2020-06-14 22:43:58 -04:00
parent 4894639b3a
commit bd71fb8a68
1 changed files with 4 additions and 0 deletions
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4
desktop_version/src/BinaryBlob.cpp
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@ -105,6 +105,10 @@ bool binaryBlob::unPackBinary(const char* name)
{ {
continue; /* Must be EXACTLY 1 or 0 */ continue; /* Must be EXACTLY 1 or 0 */
} }
if (size < 1)
{
continue; /* Must be nonzero and positive */
}
if ((offset + m_headers[i].size) > size) if ((offset + m_headers[i].size) > size)
{ {
continue; /* Bogus size value */ continue; /* Bogus size value */