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2 changed files with 27 additions and 129 deletions

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@ -1,78 +0,0 @@
Minimal patch for pip
diff -rU3 pip-22.3.1-orig/src/pip/_internal/utils/unpacking.py pip-22.3.1/src/pip/_internal/utils/unpacking.py
--- pip-22.3.1-orig/src/pip/_internal/utils/unpacking.py 2022-11-05 16:25:43.000000000 +0100
+++ pip-22.3.1/src/pip/_internal/utils/unpacking.py 2023-08-08 13:17:47.705613554 +0200
@@ -184,6 +184,13 @@
"outside target directory ({})"
)
raise InstallationError(message.format(filename, path, location))
+
+ # Call the `data` filter for its side effect (raising exception)
+ try:
+ tarfile.data_filter(member.replace(name=fn), location)
+ except tarfile.LinkOutsideDestinationError:
+ pass
+
if member.isdir():
ensure_dir(path)
elif member.issym():
Test from https://github.com/pypa/pip/pull/12214
diff -rU3 pip-22.3.1-orig/tests/unit/test_utils_unpacking.py pip-22.3.1/tests/unit/test_utils_unpacking.py
--- pip-22.3.1-orig/tests/unit/test_utils_unpacking.py 2022-11-05 16:25:43.000000000 +0100
+++ pip-22.3.1/tests/unit/test_utils_unpacking.py 2023-08-08 13:17:35.151540108 +0200
@@ -171,6 +171,23 @@
test_tar = self.make_tar_file("test_tar.tar", files)
untar_file(test_tar, self.tempdir)
+ def test_unpack_tar_filter(self) -> None:
+ """
+ Test that the tarfile.data_filter is used to disallow dangerous
+ behaviour (PEP-721)
+ """
+ test_tar = os.path.join(self.tempdir, "test_tar_filter.tar")
+ with tarfile.open(test_tar, "w") as mytar:
+ file_tarinfo = tarfile.TarInfo("bad-link")
+ file_tarinfo.type = tarfile.SYMTYPE
+ file_tarinfo.linkname = "../../../../pwn"
+ mytar.addfile(file_tarinfo, io.BytesIO(b""))
+ with pytest.raises(InstallationError) as e:
+ untar_file(test_tar, self.tempdir)
+
+ assert "is outside the destination" in str(e.value)
+
+
def test_unpack_tar_unicode(tmpdir: Path) -> None:
test_tar = tmpdir / "test.tar"
Patch for vendored distlib from https://github.com/pypa/distlib/pull/201
diff --git a/distlib/util.py b/distlib/util.py
index e0622e4..4349d0b 100644
--- a/src/pip/_vendor/distlib/util.py
+++ b/src/pip/_vendor/distlib/util.py
@@ -1249,6 +1249,19 @@ def check_path(path):
for tarinfo in archive.getmembers():
if not isinstance(tarinfo.name, text_type):
tarinfo.name = tarinfo.name.decode('utf-8')
+
+ # Limit extraction of dangerous items, if this Python
+ # allows it easily. If not, just trust the input.
+ # See: https://docs.python.org/3/library/tarfile.html#extraction-filters
+ def extraction_filter(member, path):
+ """Run tarfile.tar_fillter, but raise the expected ValueError"""
+ # This is only called if the current Python has tarfile filters
+ try:
+ return tarfile.tar_filter(member, path)
+ except tarfile.FilterError as exc:
+ raise ValueError(str(exc))
+ archive.extraction_filter = extraction_filter
+
archive.extractall(dest_dir)
finally:

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@ -12,7 +12,7 @@
Name: python%{python3_pkgversion}-%{srcname}
Version: %{base_version}%{?prerel:~%{prerel}}
Release: 5%{?dist}
Release: 2%{?dist}
Summary: A tool for installing and managing Python packages
# We bundle a lot of libraries with pip, which itself is under MIT license.
@ -81,14 +81,6 @@ Patch2: nowarn-pip._internal.main.patch
# Upstream issue: https://github.com/pypa/packaging/issues/368
Patch3: no-version-warning.patch
# CVE-2007-4559, PEP-721, PEP-706: Use tarfile.data_filter for extracting
# - Minimal downstream-only patch, to be replaced by upstream solution
# proposed in https://github.com/pypa/pip/pull/12214
# - Test patch submitted upstream in the above pull request
# - Patch for vendored distlib, accepted upstream:
# https://github.com/pypa/distlib/pull/201
Patch4: cve-2007-4559-tarfile.patch
# Downstream only patch
# Users might have local installations of pip from using
# `pip install --user --upgrade pip` on older/newer versions.
@ -207,9 +199,7 @@ Recommends: python%{python3_pkgversion}-setuptools
Requires(postun): alternatives >= 1.19.1-1
# python3.11 installs the alternatives master symlink to which we attach a slave
# pip has to require explicit version of python that provides
# filters in tarfile module (fix for CVE-2007-4559).
Requires: python%{python3_pkgversion} >= 3.11.4-3
Requires: python%{python3_pkgversion}
Requires(post): python%{python3_pkgversion}
Requires(postun): python%{python3_pkgversion}
@ -227,8 +217,6 @@ Packages" or "Pip Installs Python".
%package -n %{python_wheel_pkg_prefix}-%{srcname}-wheel
Summary: The pip wheel
Requires: ca-certificates
# Older Python does not provide tarfile filters (fix for CVE-2007-4559).
Conflicts: python%{python3_pkgversion} < 3.11.4-3
# Virtual provides for the packages bundled by pip:
%{bundled %{python3_pkgversion}}
@ -401,46 +389,34 @@ fi
%{python_wheel_dir}/%{python_wheel_name}
%changelog
* Wed Feb 14 2024 Tomáš Hrnčiar <thrnciar@redhat.com> - 22.3.1-5
- Require Python with tarfile filters
Resolves: RHEL-25453
* Tue Aug 08 2023 Petr Viktorin <pviktori@redhat.com> - 22.3.1-4
- Use tarfile.data_filter for extracting (CVE-2007-4559, PEP-721, PEP-706)
Resolves: RHBZ#2218249
* Mon Mar 06 2023 Lumír Balhar <lbalhar@redhat.com> - 22.3.1-3
- Fix changelog to contain Fedora contributors
Resolves: RHEL-232
* Mon Jan 30 2023 Charalampos Stratakis <cstratak@redhat.com> - 22.3.1-2
- Add BuildRequires on python3.11-rpm-macros
* Wed Aug 03 2022 Charalampos Stratakis <cstratak@redhat.com> - 22.3.1-1
- Initial package
- Fedora contributions by:
Bill Nottingham <notting@fedoraproject.org>
Charalampos Stratakis <cstratak@redhat.com>
David Malcolm <dmalcolm@redhat.com>
Dennis Gilmore <dennis@ausil.us>
Jon Ciesla <limburgher@gmail.com>
Karolina Surma <ksurma@redhat.com>
Kevin Fenzi <kevin@fedoraproject.org>
Kevin Kofler <Kevin@tigcc.ticalc.org>
Luke Macken <lmacken@redhat.com>
Lumir Balhar <lbalhar@redhat.com>
Marcel Plch <mplch@redhat.com>
Matej Stuchlik <mstuchli@redhat.com>
Michal Cyprian <m.cyprian@gmail.com>
Miro Hrončok <miro@hroncok.cz>
Orion Poplawski <orion@cora.nwra.com>
Pádraig Brady <P@draigBrady.com>
Peter Halliday <hoangelos@fedoraproject.org>
Petr Viktorin <pviktori@redhat.com>
Robert Kuska <rkuska@redhat.com>
Slavek Kabrda <bkabrda@redhat.com>
Tim Flink <tflink@fedoraproject.org>
Tomáš Hrnčiar <thrnciar@redhat.com>
Tomas Orsava <torsava@redhat.com>
Toshio Kuratomi <toshio@fedoraproject.org>
Ville Skyttä <ville.skytta@iki.fi>
# Bill Nottingham <notting@fedoraproject.org>
# Charalampos Stratakis <cstratak@redhat.com>
# David Malcolm <dmalcolm@redhat.com>
# Dennis Gilmore <dennis@ausil.us>
# Jon Ciesla <limburgher@gmail.com>
# Karolina Surma <ksurma@redhat.com>
# Kevin Fenzi <kevin@fedoraproject.org>
# Kevin Kofler <Kevin@tigcc.ticalc.org>
# Luke Macken <lmacken@redhat.com>
# Lumir Balhar <lbalhar@redhat.com>
# Marcel Plch <mplch@redhat.com>
# Matej Stuchlik <mstuchli@redhat.com>
# Michal Cyprian <m.cyprian@gmail.com>
# Miro Hrončok <miro@hroncok.cz>
# Orion Poplawski <orion@cora.nwra.com>
# Pádraig Brady <P@draigBrady.com>
# Peter Halliday <hoangelos@fedoraproject.org>
# Petr Viktorin <pviktori@redhat.com>
# Robert Kuska <rkuska@redhat.com>
# Slavek Kabrda <bkabrda@redhat.com>
# Tim Flink <tflink@fedoraproject.org>
# Tomáš Hrnčiar <thrnciar@redhat.com>
# Tomas Orsava <torsava@redhat.com>
# Toshio Kuratomi <toshio@fedoraproject.org>
# Ville Skyttä <ville.skytta@iki.fi>