M gnu/local.mk => gnu/local.mk +1 -0
@@ 797,6 797,7 @@ dist_patch_DATA = \
%D%/packages/patches/openssl-c-rehash-in.patch \
%D%/packages/patches/orpheus-cast-errors-and-includes.patch \
%D%/packages/patches/ots-no-include-missing-file.patch \
+ %D%/packages/patches/p7zip-CVE-2016-9296.patch \
%D%/packages/patches/p7zip-remove-unused-code.patch \
%D%/packages/patches/patchelf-page-size.patch \
%D%/packages/patches/patchelf-rework-for-arm.patch \
M gnu/packages/compression.scm => gnu/packages/compression.scm +2 -1
@@ 924,7 924,8 @@ for most inputs, but the resulting compressed files are anywhere from 20% to
(delete-file-recursively "CPP/7zip/Archive/Rar")
(delete-file-recursively "CPP/7zip/Compress/Rar")
#t))
- (patches (search-patches "p7zip-remove-unused-code.patch"))))
+ (patches (search-patches "p7zip-CVE-2016-9296.patch"
+ "p7zip-remove-unused-code.patch"))))
(build-system gnu-build-system)
(arguments
`(#:make-flags
A gnu/packages/patches/p7zip-CVE-2016-9296.patch => gnu/packages/patches/p7zip-CVE-2016-9296.patch +24 -0
@@ 0,0 1,24 @@
+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
+---
+ 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;
+ }
+