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authorJustin Lecher <jlec@gentoo.org>2015-10-28 14:44:09 +0100
committerJustin Lecher <jlec@gentoo.org>2015-10-28 14:44:09 +0100
commit2b72affac85585328eb48f5933ea13345aa733bf (patch)
tree1ce9057fdebb6a1bd58d76b167c158cc9d9b93b2 /app-arch/p7zip/files
parentsys-devel/clang: Prefix love (diff)
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app-arch/p7zip: Version Bump
Gentoo-Bug: https://bugs.gentoo.org/show_bug.cgi?id=564266 Package-Manager: portage-2.2.23 Signed-off-by: Justin Lecher <jlec@gentoo.org>
Diffstat (limited to 'app-arch/p7zip/files')
-rw-r--r--app-arch/p7zip/files/p7zip-15.09-CVE-2015-1038.patch284
1 files changed, 284 insertions, 0 deletions
diff --git a/app-arch/p7zip/files/p7zip-15.09-CVE-2015-1038.patch b/app-arch/p7zip/files/p7zip-15.09-CVE-2015-1038.patch
new file mode 100644
index 000000000000..dc813174fb39
--- /dev/null
+++ b/app-arch/p7zip/files/p7zip-15.09-CVE-2015-1038.patch
@@ -0,0 +1,284 @@
+ CPP/7zip/UI/Agent/Agent.cpp | 2 +-
+ CPP/7zip/UI/Client7z/Client7z.cpp | 19 ++++++++++-
+ CPP/7zip/UI/Common/ArchiveExtractCallback.cpp | 14 +++++++--
+ CPP/7zip/UI/Common/ArchiveExtractCallback.h | 6 +++-
+ CPP/7zip/UI/Common/Extract.cpp | 2 +-
+ CPP/Windows/FileDir.cpp | 45 +++++++++++++++++++++++++--
+ CPP/Windows/FileDir.h | 31 +++++++++++++++++-
+ 7 files changed, 109 insertions(+), 10 deletions(-)
+
+diff --git a/CPP/7zip/UI/Agent/Agent.cpp b/CPP/7zip/UI/Agent/Agent.cpp
+index 201e82c..b0b8316 100644
+--- a/CPP/7zip/UI/Agent/Agent.cpp
++++ b/CPP/7zip/UI/Agent/Agent.cpp
+@@ -1515,7 +1515,7 @@ STDMETHODIMP CAgentFolder::Extract(const UInt32 *indices,
+ 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
+ }
+diff --git a/CPP/7zip/UI/Client7z/Client7z.cpp b/CPP/7zip/UI/Client7z/Client7z.cpp
+index c6522fe..1919389 100644
+--- a/CPP/7zip/UI/Client7z/Client7z.cpp
++++ b/CPP/7zip/UI/Client7z/Client7z.cpp
+@@ -230,8 +230,11 @@ private:
+ COutFileStream *_outFileStreamSpec;
+ CMyComPtr<ISequentialOutStream> _outFileStream;
+
++ CObjectVector<NWindows::NFile::NDir::CDelayedSymLink> _delayedSymLinks;
++
+ public:
+ void Init(IInArchive *archiveHandler, const FString &directoryPath);
++ HRESULT SetFinalAttribs();
+
+ UInt64 NumErrors;
+ bool PasswordIsDefined;
+@@ -449,11 +452,23 @@ STDMETHODIMP CArchiveExtractCallback::SetOperationResult(Int32 operationResult)
+ }
+ _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)
+ {
+@@ -914,6 +929,8 @@ int MY_CDECL main(int numArgs, const char *args[])
+ // 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");
+diff --git a/CPP/7zip/UI/Common/ArchiveExtractCallback.cpp b/CPP/7zip/UI/Common/ArchiveExtractCallback.cpp
+index 877326b..05b13f3 100644
+--- a/CPP/7zip/UI/Common/ArchiveExtractCallback.cpp
++++ b/CPP/7zip/UI/Common/ArchiveExtractCallback.cpp
+@@ -1502,7 +1502,7 @@ STDMETHODIMP CArchiveExtractCallback::SetOperationResult(Int32 opRes)
+ NumFiles++;
+
+ if (!_stdOutMode && _extractMode && _fi.AttribDefined)
+- SetFileAttrib(_diskFilePath, _fi.Attrib);
++ SetFileAttrib(_diskFilePath, _fi.Attrib, &_delayedSymLinks);
+
+ RINOK(_extractCallback2->SetOperationResult(opRes, BoolToInt(_encrypted)));
+
+@@ -1584,8 +1584,9 @@ static unsigned GetNumSlashes(const FChar *s)
+ }
+ }
+
+-HRESULT CArchiveExtractCallback::SetDirsTimes()
++HRESULT CArchiveExtractCallback::SetFinalAttribs()
+ {
++ HRESULT result = S_OK;
+ CRecordVector<CExtrRefSortPair> pairs;
+ pairs.ClearAndSetSize(_extractedFolderPaths.Size());
+ unsigned i;
+@@ -1622,5 +1623,12 @@ HRESULT CArchiveExtractCallback::SetDirsTimes()
+ (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;
+ }
+diff --git a/CPP/7zip/UI/Common/ArchiveExtractCallback.h b/CPP/7zip/UI/Common/ArchiveExtractCallback.h
+index 1e9f0b6..b51d78f 100644
+--- a/CPP/7zip/UI/Common/ArchiveExtractCallback.h
++++ b/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"
+@@ -237,6 +239,8 @@ class CArchiveExtractCallback:
+ bool _saclEnabled;
+ #endif
+
++ CObjectVector<NWindows::NFile::NDir::CDelayedSymLink> _delayedSymLinks;
++
+ void CreateComplexDirectory(const UStringVector &dirPathParts, FString &fullPath);
+ HRESULT GetTime(int index, PROPID propID, FILETIME &filetime, bool &filetimeIsDefined);
+ HRESULT GetUnpackSize();
+@@ -330,7 +334,7 @@ public:
+ }
+ #endif
+
+- HRESULT SetDirsTimes();
++ HRESULT SetFinalAttribs();
+ };
+
+ bool CensorNode_CheckPath(const NWildcard::CCensorNode &node, const CReadArcItem &item);
+diff --git a/CPP/7zip/UI/Common/Extract.cpp b/CPP/7zip/UI/Common/Extract.cpp
+index 5b96071..98192fa 100644
+--- a/CPP/7zip/UI/Common/Extract.cpp
++++ b/CPP/7zip/UI/Common/Extract.cpp
+@@ -207,7 +207,7 @@ 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);
+ }
+
+diff --git a/CPP/Windows/FileDir.cpp b/CPP/Windows/FileDir.cpp
+index 422edfc..baa6255 100644
+--- a/CPP/Windows/FileDir.cpp
++++ b/CPP/Windows/FileDir.cpp
+@@ -347,7 +347,8 @@ static int convert_to_symlink(const char * name) {
+ return -1;
+ }
+
+-bool SetFileAttrib(CFSTR fileName, DWORD fileAttributes)
++bool SetFileAttrib(CFSTR fileName, DWORD fileAttributes,
++ CObjectVector<CDelayedSymLink> *delayedSymLinks)
+ {
+ if (!fileName) {
+ SetLastError(ERROR_PATH_NOT_FOUND);
+@@ -379,7 +380,9 @@ bool SetFileAttrib(CFSTR fileName, DWORD fileAttributes)
+ 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;
+ }
+@@ -814,6 +817,44 @@ 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
++
++
+ }}}
+
+ #ifndef _SFX
+diff --git a/CPP/Windows/FileDir.h b/CPP/Windows/FileDir.h
+index b13d1cc..7429a81 100644
+--- a/CPP/Windows/FileDir.h
++++ b/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<CDelayedSymLink> *delayedSymLinks = 0);
+ bool MyMoveFile(CFSTR existFileName, CFSTR newFileName);
+
+ #ifndef UNDER_CE
+@@ -76,6 +80,31 @@ 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
+ {