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This commit is contained in:
Igor Pavlov
2017-08-29 20:49:43 +01:00
committed by Kornel
parent 2efa10565a
commit b5dc853b24
110 changed files with 4714 additions and 1700 deletions
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11
CPP/7zip/Archive/Zip/ZipIn.cpp
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@@ -459,7 +459,16 @@ API_FUNC_IsArc IsArc_Zip(const Byte *p, size_t size)
extraSize -= 4;
p += 4;
if (dataSize > extraSize)
return k_IsArc_Res_NO;
{
// It can be error on header.
// We want to support such rare case bad archives.
// We use additional checks to reduce false-positive probability.
if (nameSize == 0
|| nameSize > (1 << 9)
|| extraSize > (1 << 9))
return k_IsArc_Res_NO;
return k_IsArc_Res_YES;
}
if (dataSize > size)
return k_IsArc_Res_NEED_MORE;
size -= dataSize;