From: Robert Luberda Date: Sat, 19 Nov 2016 08:48:08 +0100 Subject: Fix nullptr dereference (CVE-2016-9296) Patch taken from https://sourceforge.net/p/p7zip/bugs/185/ Signed-off-by: André Hentschel --- CPP/7zip/Archive/7z/7zIn.cpp | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/CPP/7zip/Archive/7z/7zIn.cpp b/CPP/7zip/Archive/7z/7zIn.cpp index b0c6b98..7c6dde2 100644 --- a/CPP/7zip/Archive/7z/7zIn.cpp +++ b/CPP/7zip/Archive/7z/7zIn.cpp @@ -1097,7 +1097,8 @@ HRESULT CInArchive::ReadAndDecodePackedStreams( if (CrcCalc(data, unpackSize) != folders.FolderCRCs.Vals[i]) ThrowIncorrect(); } - HeadersSize += folders.PackPositions[folders.NumPackStreams]; + if (folders.PackPositions) + HeadersSize += folders.PackPositions[folders.NumPackStreams]; return S_OK; }