app-arch/p7zip: for CVE-2017-17969, CVE-2018-5996

Bug: https://bugs.gentoo.org/645500
Package-Manager: Portage-2.3.19, Repoman-2.3.6

3 files changed, 410 insertions, 0 deletions

diff --git a/app-arch/p7zip/files/CVE-2017-17969.patch b/app-arch/p7zip/files/CVE-2017-17969.patch
new file mode 100644
index 000000000000..9a820af73067
--- /dev/null
+++ b/app-arch/p7zip/files/CVE-2017-17969.patch
@@ -0,0 +1,26 @@
+From: =?utf-8?q?Antoine_Beaupr=C3=A9?= <anarcat@debian.org>
+Date: Sun, 28 Jan 2018 21:19:50 +0100
+Subject: backport of the CVE-2017-17969 fix from 7zip 18.00-beta
+
+---
+ CPP/7zip/Compress/ShrinkDecoder.cpp | 7 ++++++-
+ 1 file changed, 6 insertions(+), 1 deletion(-)
+
+diff --git a/CPP/7zip/Compress/ShrinkDecoder.cpp b/CPP/7zip/Compress/ShrinkDecoder.cpp
+index 80b7e67..4acdce5 100644
+--- a/CPP/7zip/Compress/ShrinkDecoder.cpp
++++ b/CPP/7zip/Compress/ShrinkDecoder.cpp
+@@ -121,7 +121,12 @@ HRESULT CDecoder::CodeReal(ISequentialInStream *inStream, ISequentialOutStream *
+     {
+       _stack[i++] = _suffixes[cur];
+       cur = _parents[cur];
+-    }
++      if (i >= kNumItems)
++        break;
++     }
++
++    if (i >= kNumItems)
++      break;
+     
+     _stack[i++] = (Byte)cur;
+     lastChar2 = (Byte)cur;
diff --git a/app-arch/p7zip/files/CVE-2018-5996.patch b/app-arch/p7zip/files/CVE-2018-5996.patch
new file mode 100644
index 000000000000..6733bff91895
--- /dev/null
+++ b/app-arch/p7zip/files/CVE-2018-5996.patch
@@ -0,0 +1,221 @@
+From: Robert Luberda <robert@debian.org>
+Date: Sun, 28 Jan 2018 23:47:40 +0100
+Subject: CVE-2018-5996
+
+Hopefully fix Memory Corruptions via RAR PPMd (CVE-2018-5996) by
+applying a few changes from 7Zip 18.00-beta.
+
+Bug-Debian: https://bugs.debian.org/#888314
+---
+ CPP/7zip/Compress/Rar1Decoder.cpp | 13 +++++++++----
+ CPP/7zip/Compress/Rar1Decoder.h   |  1 +
+ CPP/7zip/Compress/Rar2Decoder.cpp | 10 +++++++++-
+ CPP/7zip/Compress/Rar2Decoder.h   |  1 +
+ CPP/7zip/Compress/Rar3Decoder.cpp | 23 ++++++++++++++++++++---
+ CPP/7zip/Compress/Rar3Decoder.h   |  2 ++
+ 6 files changed, 42 insertions(+), 8 deletions(-)
+
+diff --git a/CPP/7zip/Compress/Rar1Decoder.cpp b/CPP/7zip/Compress/Rar1Decoder.cpp
+index 1aaedcc..68030c7 100644
+--- a/CPP/7zip/Compress/Rar1Decoder.cpp
++++ b/CPP/7zip/Compress/Rar1Decoder.cpp
+@@ -29,7 +29,7 @@ public:
+ };
+ */
+ 
+-CDecoder::CDecoder(): m_IsSolid(false) { }
++CDecoder::CDecoder(): m_IsSolid(false), _errorMode(false) { }
+ 
+ void CDecoder::InitStructures()
+ {
+@@ -406,9 +406,14 @@ HRESULT CDecoder::CodeReal(ISequentialInStream *inStream, ISequentialOutStream *
+   InitData();
+   if (!m_IsSolid)
+   {
++    _errorMode = false;
+     InitStructures();
+     InitHuff();
+   }
++
++  if (_errorMode)
++    return S_FALSE;
++
+   if (m_UnpackSize > 0)
+   {
+     GetFlagsBuf();
+@@ -477,9 +482,9 @@ STDMETHODIMP CDecoder::Code(ISequentialInStream *inStream, ISequentialOutStream
+     const UInt64 *inSize, const UInt64 *outSize, ICompressProgressInfo *progress)
+ {
+   try { return CodeReal(inStream, outStream, inSize, outSize, progress); }
+-  catch(const CInBufferException &e) { return e.ErrorCode; }
+-  catch(const CLzOutWindowException &e) { return e.ErrorCode; }
+-  catch(...) { return S_FALSE; }
++  catch(const CInBufferException &e) { _errorMode = true; return e.ErrorCode; }
++  catch(const CLzOutWindowException &e) { _errorMode = true; return e.ErrorCode; }
++  catch(...) { _errorMode = true; return S_FALSE; }
+ }
+ 
+ STDMETHODIMP CDecoder::SetDecoderProperties2(const Byte *data, UInt32 size)
+diff --git a/CPP/7zip/Compress/Rar1Decoder.h b/CPP/7zip/Compress/Rar1Decoder.h
+index 630f089..01b606b 100644
+--- a/CPP/7zip/Compress/Rar1Decoder.h
++++ b/CPP/7zip/Compress/Rar1Decoder.h
+@@ -39,6 +39,7 @@ public:
+ 
+   Int64 m_UnpackSize;
+   bool m_IsSolid;
++  bool _errorMode;
+ 
+   UInt32 ReadBits(int numBits);
+   HRESULT CopyBlock(UInt32 distance, UInt32 len);
+diff --git a/CPP/7zip/Compress/Rar2Decoder.cpp b/CPP/7zip/Compress/Rar2Decoder.cpp
+index b3f2b4b..0580c8d 100644
+--- a/CPP/7zip/Compress/Rar2Decoder.cpp
++++ b/CPP/7zip/Compress/Rar2Decoder.cpp
+@@ -80,7 +80,8 @@ static const UInt32 kHistorySize = 1 << 20;
+ static const UInt32 kWindowReservSize = (1 << 22) + 256;
+ 
+ CDecoder::CDecoder():
+-  m_IsSolid(false)
++  m_IsSolid(false),
++  m_TablesOK(false)
+ {
+ }
+ 
+@@ -100,6 +101,8 @@ UInt32 CDecoder::ReadBits(unsigned numBits) { return m_InBitStream.ReadBits(numB
+ 
+ bool CDecoder::ReadTables(void)
+ {
++  m_TablesOK = false;
++
+   Byte levelLevels[kLevelTableSize];
+   Byte newLevels[kMaxTableSize];
+   m_AudioMode = (ReadBits(1) == 1);
+@@ -170,6 +173,8 @@ bool CDecoder::ReadTables(void)
+   }
+   
+   memcpy(m_LastLevels, newLevels, kMaxTableSize);
++  m_TablesOK = true;
++
+   return true;
+ }
+ 
+@@ -344,6 +349,9 @@ HRESULT CDecoder::CodeReal(ISequentialInStream *inStream, ISequentialOutStream *
+       return S_FALSE;
+   }
+ 
++  if (!m_TablesOK)
++    return S_FALSE;
++
+   UInt64 startPos = m_OutWindowStream.GetProcessedSize();
+   while (pos < unPackSize)
+   {
+diff --git a/CPP/7zip/Compress/Rar2Decoder.h b/CPP/7zip/Compress/Rar2Decoder.h
+index 3a0535c..0e9005f 100644
+--- a/CPP/7zip/Compress/Rar2Decoder.h
++++ b/CPP/7zip/Compress/Rar2Decoder.h
+@@ -139,6 +139,7 @@ class CDecoder :
+ 
+   UInt64 m_PackSize;
+   bool m_IsSolid;
++  bool m_TablesOK;
+ 
+   void InitStructures();
+   UInt32 ReadBits(unsigned numBits);
+diff --git a/CPP/7zip/Compress/Rar3Decoder.cpp b/CPP/7zip/Compress/Rar3Decoder.cpp
+index 3bf2513..6cb8a6a 100644
+--- a/CPP/7zip/Compress/Rar3Decoder.cpp
++++ b/CPP/7zip/Compress/Rar3Decoder.cpp
+@@ -92,7 +92,8 @@ CDecoder::CDecoder():
+   _writtenFileSize(0),
+   _vmData(0),
+   _vmCode(0),
+-  m_IsSolid(false)
++  m_IsSolid(false),
++  _errorMode(false)
+ {
+   Ppmd7_Construct(&_ppmd);
+ }
+@@ -545,6 +546,9 @@ HRESULT CDecoder::ReadTables(bool &keepDecompressing)
+     return InitPPM();
+   }
+ 
++  TablesRead = false;
++  TablesOK = false;
++
+   _lzMode = true;
+   PrevAlignBits = 0;
+   PrevAlignCount = 0;
+@@ -606,6 +610,9 @@ HRESULT CDecoder::ReadTables(bool &keepDecompressing)
+       }
+     }
+   }
++  if (InputEofError())
++    return S_FALSE;
++
+   TablesRead = true;
+ 
+   // original code has check here:
+@@ -623,6 +630,9 @@ HRESULT CDecoder::ReadTables(bool &keepDecompressing)
+   RIF(m_LenDecoder.Build(&newLevels[kMainTableSize + kDistTableSize + kAlignTableSize]));
+ 
+   memcpy(m_LastLevels, newLevels, kTablesSizesSum);
++
++  TablesOK = true;
++
+   return S_OK;
+ }
+ 
+@@ -824,7 +834,12 @@ HRESULT CDecoder::CodeReal(ICompressProgressInfo *progress)
+     PpmEscChar = 2;
+     PpmError = true;
+     InitFilters();
++    _errorMode = false;
+   }
++
++  if (_errorMode)
++    return S_FALSE;
++
+   if (!m_IsSolid || !TablesRead)
+   {
+     bool keepDecompressing;
+@@ -838,6 +853,8 @@ HRESULT CDecoder::CodeReal(ICompressProgressInfo *progress)
+     bool keepDecompressing;
+     if (_lzMode)
+     {
++      if (!TablesOK)
++        return S_FALSE;
+       RINOK(DecodeLZ(keepDecompressing))
+     }
+     else
+@@ -901,8 +918,8 @@ STDMETHODIMP CDecoder::Code(ISequentialInStream *inStream, ISequentialOutStream
+     _unpackSize = outSize ? *outSize : (UInt64)(Int64)-1;
+     return CodeReal(progress);
+   }
+-  catch(const CInBufferException &e)  { return e.ErrorCode; }
+-  catch(...) { return S_FALSE; }
++  catch(const CInBufferException &e)  { _errorMode = true; return e.ErrorCode; }
++  catch(...) { _errorMode = true; return S_FALSE; }
+   // CNewException is possible here. But probably CNewException is caused
+   // by error in data stream.
+ }
+diff --git a/CPP/7zip/Compress/Rar3Decoder.h b/CPP/7zip/Compress/Rar3Decoder.h
+index c130cec..2f72d7d 100644
+--- a/CPP/7zip/Compress/Rar3Decoder.h
++++ b/CPP/7zip/Compress/Rar3Decoder.h
+@@ -192,6 +192,7 @@ class CDecoder:
+   UInt32 _lastFilter;
+ 
+   bool m_IsSolid;
++  bool _errorMode;
+ 
+   bool _lzMode;
+   bool _unsupportedFilter;
+@@ -200,6 +201,7 @@ class CDecoder:
+   UInt32 PrevAlignCount;
+ 
+   bool TablesRead;
++  bool TablesOK;
+ 
+   CPpmd7 _ppmd;
+   int PpmEscChar;
diff --git a/app-arch/p7zip/p7zip-16.02-r2.ebuild b/app-arch/p7zip/p7zip-16.02-r2.ebuild
new file mode 100644
index 000000000000..4bcce4045328
--- /dev/null
+++ b/app-arch/p7zip/p7zip-16.02-r2.ebuild
@@ -0,0 +1,163 @@
+# Copyright 1999-2018 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=6
+
+WX_GTK_VER="3.0"
+
+inherit toolchain-funcs wxwidgets
+
+DESCRIPTION="Port of 7-Zip archiver for Unix"
+HOMEPAGE="http://p7zip.sourceforge.net/"
+SRC_URI="mirror://sourceforge/${PN}/${PN}_${PV}_src_all.tar.bz2"
+
+LICENSE="LGPL-2.1 rar? ( unRAR )"
+SLOT="0"
+KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ia64 ~ppc ~ppc64 ~s390 ~sparc ~x86 ~x86-fbsd ~amd64-linux ~x86-linux ~ppc-macos ~x64-macos ~x86-macos ~sparc-solaris"
+IUSE="abi_x86_x32 doc kde +pch rar static wxwidgets"
+
+REQUIRED_USE="kde? ( wxwidgets )"
+
+RDEPEND="wxwidgets? ( x11-libs/wxGTK:${WX_GTK_VER}[X] )"
+DEPEND="${RDEPEND}
+	abi_x86_x32? ( >=dev-lang/yasm-1.2.0-r1 )
+	amd64? ( dev-lang/yasm )
+	x86? ( dev-lang/nasm )"
+
+S=${WORKDIR}/${PN}_${PV}
+
+DOCS=( ChangeLog README TODO )
+
+PATCHES=(
+	"${FILESDIR}"/${P}-darwin.patch
+	"${FILESDIR}"/CVE-2017-17969.patch
+	"${FILESDIR}"/CVE-2018-5996.patch
+)
+
+src_prepare() {
+	default
+
+	if ! use pch; then
+		sed "s:PRE_COMPILED_HEADER=StdAfx.h.gch:PRE_COMPILED_HEADER=:g" -i makefile.* || die
+	fi
+
+	sed \
+		-e 's:-m32 ::g' \
+		-e 's:-m64 ::g' \
+		-e 's:-pipe::g' \
+		-e '/ALLFLAGS/s:-s ::' \
+		-e "/OPTFLAGS=/s:=.*:=${CXXFLAGS}:" \
+		-i makefile* || die
+
+	# remove non-free RAR codec
+	if use rar; then
+		ewarn "Enabling nonfree RAR decompressor"
+	else
+		sed \
+			-e '/Rar/d' \
+			-e '/RAR/d' \
+			-i makefile* CPP/7zip/Bundles/Format7zFree/makefile || die
+		rm -rf CPP/7zip/Compress/Rar || die
+	fi
+
+	if use abi_x86_x32; then
+		sed -i -e "/^ASM=/s:amd64:x32:" makefile* || die
+		cp -f makefile.linux_amd64_asm makefile.machine || die
+	elif use amd64; then
+		cp -f makefile.linux_amd64_asm makefile.machine || die
+	elif use x86; then
+		cp -f makefile.linux_x86_asm_gcc_4.X makefile.machine || die
+	elif [[ ${CHOST} == *-darwin* ]] ; then
+		# Mac OS X needs this special makefile, because it has a non-GNU
+		# linker, it doesn't matter so much for bitwidth, for it doesn't
+		# do anything with it
+		cp -f makefile.macosx_llvm_64bits makefile.machine
+		# bundles have extension .bundle but don't die because USE=-rar
+		# removes the Rar directory
+		sed -i -e '/strcpy(name/s/\.so/.bundle/' \
+			CPP/Windows/DLL.cpp || die
+		sed -i -e '/^PROG=/s/\.so/.bundle/' \
+			CPP/7zip/Bundles/Format7zFree/makefile.list \
+			$(use rar && echo CPP/7zip/Compress/Rar/makefile.list) || die
+	elif use x86-fbsd; then
+		# FreeBSD needs this special makefile, because it hasn't -ldl
+		sed -e 's/-lc_r/-pthread/' makefile.freebsd > makefile.machine
+	fi
+
+	if use static; then
+		sed -i -e '/^LOCAL_LIBS=/s/LOCAL_LIBS=/&-static /' makefile.machine || die
+	fi
+
+	if use kde || use wxwidgets; then
+		need-wxwidgets unicode
+		einfo "Preparing dependency list"
+		emake depend
+	fi
+}
+
+src_compile() {
+	emake CC=$(tc-getCC) CXX=$(tc-getCXX) all3
+	if use kde || use wxwidgets; then
+		emake CC=$(tc-getCC) CXX=$(tc-getCXX) -- 7zG
+#		emake -- 7zFM
+	fi
+}
+
+src_test() {
+	emake test test_7z test_7zr
+}
+
+src_install() {
+	# this wrappers can not be symlinks, p7zip should be called with full path
+	make_wrapper 7zr "/usr/$(get_libdir)/${PN}/7zr"
+	make_wrapper 7za "/usr/$(get_libdir)/${PN}/7za"
+	make_wrapper 7z "/usr/$(get_libdir)/${PN}/7z"
+
+	if use kde || use wxwidgets; then
+		make_wrapper 7zG "/usr/$(get_libdir)/${PN}/7zG"
+#		make_wrapper 7zFM "/usr/$(get_libdir)/${PN}/7zFM"
+
+#		make_desktop_entry 7zFM "${PN} FM" ${PN} "GTK;Utility;Archiving;Compression"
+
+		dobin GUI/p7zipForFilemanager
+		exeinto /usr/$(get_libdir)/${PN}
+#		doexe bin/7z{G,FM}
+		doexe bin/7zG
+
+		insinto /usr/$(get_libdir)/${PN}
+		doins -r GUI/Lang
+		doins -r DOC/MANUAL
+
+		insinto /usr/share/icons/hicolor/16x16/apps/
+		newins GUI/p7zip_16_ok.png p7zip.png
+
+		if use kde; then
+			rm GUI/kde4/p7zip_compress.desktop || die
+			insinto /usr/share/kservices5/ServiceMenus
+			doins GUI/kde4/*.desktop
+			dodir /usr/share/kde4/services/ServiceMenus # drop these lines after konqueror:4/krusader:4 are gone
+			for item in "${ED}"usr/share/kservices5/ServiceMenus/*.desktop; do
+				item="$(basename ${item})"
+				dosym "/usr/share/kservices5/ServiceMenus/${item}" "/usr/share/kde4/services/ServiceMenus/${item}"
+			done
+		fi
+	fi
+
+	dobin contrib/gzip-like_CLI_wrapper_for_7z/p7zip
+	doman contrib/gzip-like_CLI_wrapper_for_7z/man1/p7zip.1
+
+	exeinto /usr/$(get_libdir)/${PN}
+	doexe bin/7z bin/7za bin/7zr bin/7zCon.sfx
+	doexe bin/*$(get_modname)
+	if use rar; then
+		exeinto /usr/$(get_libdir)/${PN}/Codecs/
+		doexe bin/Codecs/*$(get_modname)
+	fi
+
+	doman man1/7z.1 man1/7za.1 man1/7zr.1
+
+	if use doc; then
+		dodoc DOC/*.txt
+		dohtml -r DOC/MANUAL/*
+	fi
+}