Index: branches/2015Q3/archivers/p7zip/Makefile =================================================================== --- branches/2015Q3/archivers/p7zip/Makefile (revision 397082) +++ branches/2015Q3/archivers/p7zip/Makefile (revision 397083) @@ -1,60 +1,60 @@ # Created by: Juergen Lock # $FreeBSD$ PORTNAME= p7zip PORTVERSION= 9.38.1 -PORTREVISION?= 1 +PORTREVISION?= 2 CATEGORIES= archivers MASTER_SITES= SF DISTNAME= ${PORTNAME}_${DISTVERSION}_src_all MAINTAINER= rakuco@FreeBSD.org COMMENT?= File archiver with high compression ratio LICENSE?= LGPL21 ALL_TARGET?= all3 USES= cpe tar:bzip2 CPE_VENDOR= 7-zip MAKEFILE= makefile MAKE_ARGS= OPTFLAGS="${CXXFLAGS}" WRKSRC= ${WRKDIR}/${PORTNAME}_${PORTVERSION} CFLAGS_aarch64= -fPIC CFLAGS_amd64= -fPIC CFLAGS_ia64= -fPIC CFLAGS_powerpc= -fPIC CFLAGS_sparc64= -fPIC OPTIONS_DEFINE= DOCS post-patch: ${SED} -e 's!g\+\+!${CXX}!' \ -e 's!gcc!${CC}!' \ -e 's/ -s //' \ -e 's/-D_LARGEFILE_SOURCE//' \ -e 's/-D_FILE_OFFSET_BITS=64//' \ ${WRKSRC}/makefile.freebsd6 > ${WRKSRC}/makefile.machine ${REINPLACE_CMD} -e 's|{DEST_SHARE_DOC}|${DOCSDIR}|' \ ${WRKSRC}/man1/* ${MV} ${WRKSRC}/README ${WRKSRC}/DOC/readme.unix .if ! defined(PKGNAMESUFFIX) do-install: ${MKDIR} ${STAGEDIR}${PREFIX}/libexec/p7zip .for BINARY in 7z 7za 7zr 7zCon.sfx ${INSTALL_PROGRAM} ${WRKSRC}/bin/${BINARY} ${STAGEDIR}${PREFIX}/libexec/p7zip .endfor ${INSTALL_LIB} ${WRKSRC}/bin/7z.so ${STAGEDIR}${PREFIX}/libexec/p7zip ${INSTALL_SCRIPT} ${FILESDIR}/7z ${STAGEDIR}${PREFIX}/bin ${LN} -sf 7z ${STAGEDIR}${PREFIX}/bin/7za ${LN} -sf 7z ${STAGEDIR}${PREFIX}/bin/7zr (cd ${WRKSRC}/DOC && \ ${COPYTREE_SHARE} . ${STAGEDIR}${DOCSDIR}) (cd ${WRKSRC}/man1 && \ ${INSTALL_MAN} 7z*.1 ${STAGEDIR}${MAN1PREFIX}/man/man1) .endif .include Index: branches/2015Q3/archivers/p7zip/files/patch-CVE-2015-1038 =================================================================== --- branches/2015Q3/archivers/p7zip/files/patch-CVE-2015-1038 (nonexistent) +++ branches/2015Q3/archivers/p7zip/files/patch-CVE-2015-1038 (revision 397083) @@ -0,0 +1,283 @@ +Author: Ben Hutchings +Date: Tue, 19 May 2015 02:38:40 +0100 +Description: Delay creation of symlinks to prevent arbitrary file writes (CVE-2015-1038) +Bug: http://sourceforge.net/p/p7zip/bugs/147/ +Bug-Debian: https://bugs.debian.org/774660 + +Alexander Cherepanov discovered that 7zip is susceptible to a +directory traversal vulnerability. While extracting an archive, it +will extract symlinks and then follow them if they are referenced in +further entries. This can be exploited by a rogue archive to write +files outside the current directory. + +We have to create placeholder files (which we already do) and delay +creating symlinks until the end of extraction. + +Due to the possibility of anti-items (deletions) in the archive, it is +possible for placeholders to be deleted and replaced before we create +the symlinks. It's not clear that this can be used for mischief, but +GNU tar guards against similar problems by checking that the placeholder +still exists and is the same inode. XXX It also checks 'birth time' but +this isn't portable. We can probably get away with comparing ctime +since we don't support hard links. + +--- CPP/7zip/UI/Agent/Agent.cpp ++++ CPP/7zip/UI/Agent/Agent.cpp +@@ -1215,7 +1215,7 @@ STDMETHODIMP CAgentFolder::Extract(const + HRESULT result = _agentSpec->GetArchive()->Extract(&realIndices.Front(), + realIndices.Size(), testMode, extractCallback); + if (result == S_OK) +- result = extractCallbackSpec->SetDirsTimes(); ++ result = extractCallbackSpec->SetFinalAttribs(); + return result; + COM_TRY_END + } +--- CPP/7zip/UI/Client7z/Client7z.cpp ++++ CPP/7zip/UI/Client7z/Client7z.cpp +@@ -222,8 +222,11 @@ private: + COutFileStream *_outFileStreamSpec; + CMyComPtr _outFileStream; + ++ CObjectVector _delayedSymLinks; ++ + public: + void Init(IInArchive *archiveHandler, const FString &directoryPath); ++ HRESULT SetFinalAttribs(); + + UInt64 NumErrors; + bool PasswordIsDefined; +@@ -441,11 +444,23 @@ STDMETHODIMP CArchiveExtractCallback::Se + } + _outFileStream.Release(); + if (_extractMode && _processedFileInfo.AttribDefined) +- SetFileAttrib(_diskFilePath, _processedFileInfo.Attrib); ++ SetFileAttrib(_diskFilePath, _processedFileInfo.Attrib, &_delayedSymLinks); + PrintNewLine(); + return S_OK; + } + ++HRESULT CArchiveExtractCallback::SetFinalAttribs() ++{ ++ HRESULT result = S_OK; ++ ++ for (int i = 0; i != _delayedSymLinks.Size(); ++i) ++ if (!_delayedSymLinks[i].Create()) ++ result = E_FAIL; ++ ++ _delayedSymLinks.Clear(); ++ ++ return result; ++} + + STDMETHODIMP CArchiveExtractCallback::CryptoGetTextPassword(BSTR *password) + { +@@ -912,6 +927,8 @@ int MY_CDECL main(int numArgs, const cha + // extractCallbackSpec->PasswordIsDefined = true; + // extractCallbackSpec->Password = L"1"; + HRESULT result = archive->Extract(NULL, (UInt32)(Int32)(-1), false, extractCallback); ++ if (result == S_OK) ++ result = extractCallbackSpec->SetFinalAttribs(); + if (result != S_OK) + { + PrintError("Extract Error"); +--- CPP/7zip/UI/Common/ArchiveExtractCallback.cpp ++++ CPP/7zip/UI/Common/ArchiveExtractCallback.cpp +@@ -1083,7 +1083,7 @@ STDMETHODIMP CArchiveExtractCallback::Se + NumFiles++; + + if (_extractMode && _fi.AttribDefined) +- SetFileAttrib(_diskFilePath, _fi.Attrib); ++ SetFileAttrib(_diskFilePath, _fi.Attrib, &_delayedSymLinks); + RINOK(_extractCallback2->SetOperationResult(operationResult, _encrypted)); + return S_OK; + COM_TRY_END +@@ -1149,8 +1149,9 @@ static int GetNumSlashes(const FChar *s) + } + } + +-HRESULT CArchiveExtractCallback::SetDirsTimes() ++HRESULT CArchiveExtractCallback::SetFinalAttribs() + { ++ HRESULT result = S_OK; + CRecordVector pairs; + pairs.ClearAndSetSize(_extractedFolderPaths.Size()); + unsigned i; +@@ -1187,5 +1188,12 @@ HRESULT CArchiveExtractCallback::SetDirs + (WriteATime && ATimeDefined) ? &ATime : NULL, + (WriteMTime && MTimeDefined) ? &MTime : (_arc->MTimeDefined ? &_arc->MTime : NULL)); + } +- return S_OK; ++ ++ for (int i = 0; i != _delayedSymLinks.Size(); ++i) ++ if (!_delayedSymLinks[i].Create()) ++ result = E_FAIL; ++ ++ _delayedSymLinks.Clear(); ++ ++ return result; + } +--- CPP/7zip/UI/Common/ArchiveExtractCallback.h ++++ CPP/7zip/UI/Common/ArchiveExtractCallback.h +@@ -6,6 +6,8 @@ + #include "../../../Common/MyCom.h" + #include "../../../Common/Wildcard.h" + ++#include "../../../Windows/FileDir.h" ++ + #include "../../IPassword.h" + + #include "../../Common/FileStreams.h" +@@ -213,6 +215,8 @@ class CArchiveExtractCallback: + bool _saclEnabled; + #endif + ++ CObjectVector _delayedSymLinks; ++ + void CreateComplexDirectory(const UStringVector &dirPathParts, FString &fullPath); + HRESULT GetTime(int index, PROPID propID, FILETIME &filetime, bool &filetimeIsDefined); + HRESULT GetUnpackSize(); +@@ -293,7 +297,7 @@ public: + _baseParentFolder = indexInArc; + } + +- HRESULT SetDirsTimes(); ++ HRESULT SetFinalAttribs(); + }; + + #endif +--- CPP/7zip/UI/Common/Extract.cpp ++++ CPP/7zip/UI/Common/Extract.cpp +@@ -170,7 +170,7 @@ static HRESULT DecompressArchive( + else + result = archive->Extract(&realIndices.Front(), realIndices.Size(), testMode, ecs); + if (result == S_OK && !options.StdInMode) +- result = ecs->SetDirsTimes(); ++ result = ecs->SetFinalAttribs(); + return callback->ExtractResult(result); + } + +--- CPP/Windows/FileDir.cpp ++++ CPP/Windows/FileDir.cpp +@@ -343,7 +343,8 @@ static int convert_to_symlink(const char + return -1; + } + +-bool SetFileAttrib(CFSTR fileName, DWORD fileAttributes) ++bool SetFileAttrib(CFSTR fileName, DWORD fileAttributes, ++ CObjectVector *delayedSymLinks) + { + if (!fileName) { + SetLastError(ERROR_PATH_NOT_FOUND); +@@ -375,7 +376,9 @@ bool SetFileAttrib(CFSTR fileName, DWORD + stat_info.st_mode = fileAttributes >> 16; + #ifdef ENV_HAVE_LSTAT + if (S_ISLNK(stat_info.st_mode)) { +- if ( convert_to_symlink(name) != 0) { ++ if (delayedSymLinks) ++ delayedSymLinks->Add(CDelayedSymLink(name)); ++ else if ( convert_to_symlink(name) != 0) { + TRACEN((printf("SetFileAttrib(%s,%d) : false-3\n",(const char *)name,fileAttributes))) + return false; + } +@@ -885,6 +888,43 @@ bool CTempDir::Remove() + return !_mustBeDeleted; + } + ++#ifdef ENV_UNIX ++ ++CDelayedSymLink::CDelayedSymLink(const char * source) ++ : _source(source) ++{ ++ struct stat st; ++ ++ if (lstat(_source, &st) == 0) { ++ _dev = st.st_dev; ++ _ino = st.st_ino; ++ } else { ++ _dev = 0; ++ } ++} ++ ++bool CDelayedSymLink::Create() ++{ ++ struct stat st; ++ ++ if (_dev == 0) { ++ errno = EPERM; ++ return false; ++ } ++ if (lstat(_source, &st) != 0) ++ return false; ++ if (_dev != st.st_dev || _ino != st.st_ino) { ++ // Placeholder file has been overwritten or moved by another ++ // symbolic link creation ++ errno = EPERM; ++ return false; ++ } ++ ++ return convert_to_symlink(_source) == 0; ++} ++ ++#endif // ENV_UNIX ++ + }}} + + +--- CPP/Windows/FileDir.h ++++ CPP/Windows/FileDir.h +@@ -4,6 +4,7 @@ + #define __WINDOWS_FILE_DIR_H + + #include "../Common/MyString.h" ++#include "../Common/MyVector.h" + + #include "FileIO.h" + +@@ -11,11 +12,14 @@ namespace NWindows { + namespace NFile { + namespace NDir { + ++class CDelayedSymLink; ++ + bool GetWindowsDir(FString &path); + bool GetSystemDir(FString &path); + + bool SetDirTime(CFSTR path, const FILETIME *cTime, const FILETIME *aTime, const FILETIME *mTime); +-bool SetFileAttrib(CFSTR path, DWORD attrib); ++bool SetFileAttrib(CFSTR path, DWORD attrib, ++ CObjectVector *delayedSymLinks = 0); + bool MyMoveFile(CFSTR existFileName, CFSTR newFileName); + + #ifndef UNDER_CE +@@ -69,6 +73,31 @@ public: + bool Remove(); + }; + ++// Symbolic links must be created last so that they can't be used to ++// create or overwrite files above the extraction directory. ++class CDelayedSymLink ++{ ++#ifdef ENV_UNIX ++ // Where the symlink should be created. The target is specified in ++ // the placeholder file. ++ AString _source; ++ ++ // Device and inode of the placeholder file. Before creating the ++ // symlink, we must check that these haven't been changed by creation ++ // of another symlink. ++ dev_t _dev; ++ ino_t _ino; ++ ++public: ++ explicit CDelayedSymLink(const char * source); ++ bool Create(); ++#else // !ENV_UNIX ++public: ++ CDelayedSymLink(const char * source) {} ++ bool Create() { return true; } ++#endif // ENV_UNIX ++}; ++ + #if !defined(UNDER_CE) + class CCurrentDirRestorer + { Property changes on: branches/2015Q3/archivers/p7zip/files/patch-CVE-2015-1038 ___________________________________________________________________ Added: fbsd:nokeywords ## -0,0 +1 ## +yes \ No newline at end of property Added: svn:eol-style ## -0,0 +1 ## +native \ No newline at end of property Added: svn:mime-type ## -0,0 +1 ## +text/plain \ No newline at end of property Index: branches/2015Q3 =================================================================== --- branches/2015Q3 (revision 397082) +++ branches/2015Q3 (revision 397083) Property changes on: branches/2015Q3 ___________________________________________________________________ Modified: svn:mergeinfo ## -0,0 +0,1 ## Merged /head:r397079