p7zip: Fix for CVE-2016-9296

Add patch to fix CVE-2016-9296

Signed-off-by: Virendra Thakur <virendra.thakur@kpit.com>
Signed-off-by: Armin Kuster <akuster808@gmail.com>
Signed-off-by: Peter Marko <peter.marko@siemens.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>

1 files changed, 27 insertions, 0 deletions

diff --git a/meta-oe/recipes-extended/p7zip/files/CVE-2016-9296.patch b/meta-oe/recipes-extended/p7zip/files/CVE-2016-9296.patch
new file mode 100644
index 0000000000..98e186cbf0
--- /dev/null
+++ b/meta-oe/recipes-extended/p7zip/files/CVE-2016-9296.patch
@@ -0,0 +1,27 @@
+p7zip: Update CVE-2016-9296 patch URL.
+From: Robert Luberda <robert@debian.org>
+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/
+This patch file taken from Debian's patch set for p7zip
+
+Upstream-Status: Backport [https://sourceforge.net/p/p7zip/bugs/185/]
+CVE: CVE-2016-9296
+
+Signed-off-by: Virendra Thakur <virendra.thakur@kpit.com>
+
+Index: p7zip_16.02/CPP/7zip/Archive/7z/7zIn.cpp
+===================================================================
+--- p7zip_16.02.orig/CPP/7zip/Archive/7z/7zIn.cpp
++++ p7zip_16.02/CPP/7zip/Archive/7z/7zIn.cpp
+@@ -1097,7 +1097,8 @@ HRESULT CInArchive::ReadAndDecodePackedS
+       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;
+ }
+