nixpkgs/pkgs/desktops/kde-4.4/network/kget-cve.patch
Yury G. Kudryashov 43106b4d04 Apply upstream security patch to kget
svn path=/nixpkgs/trunk/; revision=21769
2010-05-13 22:05:08 +00:00

213 lines
6.9 KiB
Diff

Index: kget/transfer-plugins/metalink/metalink.cpp
===================================================================
--- a/kget/transfer-plugins/metalink/metalink.cpp (revision 1124973)
+++ b/kget/transfer-plugins/metalink/metalink.cpp (revision 1124974)
@@ -99,6 +99,7 @@
void Metalink::metalinkInit(const KUrl &src, const QByteArray &data)
{
kDebug(5001);
+
bool justDownloaded = !m_localMetalinkLocation.isValid();
if (!src.isEmpty())
{
@@ -121,7 +122,9 @@
//error
if (!m_metalink.isValid())
{
- kDebug(5001) << "Unknown error when trying to load the .metalink-file";
+ kError(5001) << "Unknown error when trying to load the .metalink-file. Metalink is not valid.";
+ setStatus(Job::Aborted);
+ setTransferChange(Tc_Status, true);
return;
}
@@ -202,7 +205,7 @@
if (!m_dataSourceFactory.size())
{
KMessageBox::error(0, i18n("Download failed, no working URLs were found."), i18n("Error"));
- setStatus(Job::Aborted, i18n("An error occurred...."), SmallIcon("document-preview"));
+ setStatus(Job::Aborted);
setTransferChange(Tc_Status, true);
return;
}
@@ -227,16 +230,29 @@
ui.treeView->hideColumn(FileItem::SignatureVerified);
dialog->setMainWidget(widget);
dialog->setCaption(i18n("File Selection"));
- dialog->setButtons(KDialog::Ok);
- connect(dialog, SIGNAL(finished()), this, SLOT(filesSelected()));
+ dialog->setButtons(KDialog::Ok | KDialog::Cancel);
+ connect(dialog, SIGNAL(finished(int)), this, SLOT(fileDlgFinished(int)));
dialog->show();
}
}
-void Metalink::filesSelected()
+void Metalink::fileDlgFinished(int result)
{
+ //BEGIN HACK if the dialog was not accepted untick every file, so that the download does not start
+ //generally setStatus should do the job as well, but does not as it appears
+ if (result != QDialog::Accepted) {
+ for (int row = 0; row < fileModel()->rowCount(); ++row) {
+ QModelIndex index = fileModel()->index(row, FileItem::File);
+ if (index.isValid()) {
+ fileModel()->setData(index, Qt::Unchecked, Qt::CheckStateRole);
+ }
+ }
+ }
+ //END
+
QModelIndexList files = fileModel()->fileIndexes(FileItem::File);
+ int numFilesSelected = 0;
foreach (const QModelIndex &index, files)
{
const KUrl dest = fileModel()->getUrl(index);
@@ -244,6 +260,9 @@
if (m_dataSourceFactory.contains(dest))
{
m_dataSourceFactory[dest]->setDoDownload(doDownload);
+ if (doDownload) {
+ ++numFilesSelected;
+ }
}
}
@@ -252,9 +271,15 @@
processedSizeChanged();
speedChanged();
+ //no files selected to download or dialog rejected, stop the download
+ if (!numFilesSelected || (result != QDialog::Accepted)) {
+ setStatus(Job::Stopped);//FIXME
+ setTransferChange(Tc_Status, true);
+ return;
+ }
+
//some files may be set to download, so start them as long as the transfer is not stopped
- if (status() != Job::Stopped)
- {
+ if (status() != Job::Stopped) {
startMetalink();
}
}
Index: kget/transfer-plugins/metalink/metalink.h
===================================================================
--- a/kget/transfer-plugins/metalink/metalink.h (revision 1124973)
+++ b/kget/transfer-plugins/metalink/metalink.h (revision 1124974)
@@ -81,7 +81,7 @@
private Q_SLOTS:
void metalinkInit(const KUrl &url = KUrl(), const QByteArray &data = QByteArray());
- void filesSelected();
+ void fileDlgFinished(int result);
void totalSizeChanged(KIO::filesize_t size);
void processedSizeChanged();
void speedChanged();
Index: kget/ui/metalinkcreator/metalinker.h
===================================================================
--- a/kget/ui/metalinkcreator/metalinker.h (revision 1124973)
+++ b/kget/ui/metalinkcreator/metalinker.h (revision 1124974)
@@ -259,6 +259,14 @@
KIO::filesize_t size;
CommonData data;
Resources resources;
+
+ private:
+ /**
+ * Controlls if the name attribute is valid, i.e. it is not empty and
+ * does not contain any directory traversal directives or information,
+ * as described in the Metalink 4.0 specification 4.1.2.1.
+ */
+ bool isValidNameAttribute() const;
};
class Files
Index: kget/ui/metalinkcreator/metalinker.cpp
===================================================================
--- a/kget/ui/metalinkcreator/metalinker.cpp (revision 1124973)
+++ b/kget/ui/metalinkcreator/metalinker.cpp (revision 1124974)
@@ -528,14 +528,14 @@
bool KGetMetalink::File::isValid() const
{
- return !name.isEmpty() && resources.isValid();
+ return isValidNameAttribute() && resources.isValid();
}
void KGetMetalink::File::load(const QDomElement &e)
{
data.load(e);
- name = e.attribute("name");
+ name = QUrl::fromPercentEncoding(e.attribute("name").toAscii());
size = e.firstChildElement("size").text().toULongLong();
verification.load(e);
@@ -575,6 +575,22 @@
resources.clear();
}
+
+bool KGetMetalink::File::isValidNameAttribute() const
+{
+ if (name.isEmpty()) {
+ kError(5001) << "Name attribute of Metalink::File is empty.";
+ return false;
+ }
+
+ if (name.contains(QRegExp("$(\\.\\.?)?/")) || name.contains("/../") || name.endsWith("/..")) {
+ kError(5001) << "Name attribute of Metalink::File contains directory traversal directives:" << name;
+ return false;
+ }
+
+ return true;
+}
+
#ifdef HAVE_NEPOMUK
QHash<QUrl, Nepomuk::Variant> KGetMetalink::File::properties() const
{
@@ -584,13 +600,28 @@
bool KGetMetalink::Files::isValid() const
{
- bool isValid = !files.empty();
- foreach (const File &file, files)
- {
- isValid &= file.isValid();
+ if (files.isEmpty()) {
+ return false;
}
- return isValid;
+ QStringList fileNames;
+ foreach (const File &file, files) {
+ fileNames << file.name;
+ if (!file.isValid()) {
+ return false;
+ }
+ }
+
+ //The value of name must be unique for each file
+ while (!fileNames.isEmpty()) {
+ const QString fileName = fileNames.takeFirst();
+ if (fileNames.contains(fileName)) {
+ kError(5001) << "Metalink::File name" << fileName << "exists multiple times.";
+ return false;
+ }
+ }
+
+ return true;
}
void KGetMetalink::Files::load(const QDomElement &e)
@@ -751,7 +782,7 @@
for (QDomElement elem = filesElem.firstChildElement("file"); !elem.isNull(); elem = elem.nextSiblingElement("file")) {
File file;
- file.name = elem.attribute("name");
+ file.name = QUrl::fromPercentEncoding(elem.attribute("name").toAscii());
file.size = elem.firstChildElement("size").text().toULongLong();
file.data = parseCommonData(elem);