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setuptools is a package that allows users to download, build, install, upgrade, and uninstall Python packages. A path traversal vulnerability in `PackageIndex` is present in setuptools prior to version 78.1.1. An attacker would be allowed to write files to arbitrary locations on the filesystem with the permissions of the process running the Python code, which could escalate to remote code execution depending on the context. Version 78.1.1 fixes the issue. Reference: https://nvd.nist.gov/vuln/detail/CVE-2025-47273 Upstream-patch:d8390feaa9250a6d1797(From OE-Core rev: cfb2d77f841ae21cae0ba7d6263dc3e1e0280400) Signed-off-by: Praveen Kumar <praveen.kumar@windriver.com> Signed-off-by: Steve Sakoman <steve@sakoman.com>
56 lines
2.0 KiB
Diff
56 lines
2.0 KiB
Diff
From d8390feaa99091d1ba9626bec0e4ba7072fc507a Mon Sep 17 00:00:00 2001
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From: "Jason R. Coombs" <jaraco@jaraco.com>
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Date: Sat, 19 Apr 2025 12:49:55 -0400
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Subject: [PATCH] Extract _resolve_download_filename with test.
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CVE: CVE-2025-47273 #Dependency Patch
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Upstream-Status: Backport [https://github.com/pypa/setuptools/commit/d8390feaa99091d1ba9626bec0e4ba7072fc507a]
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Signed-off-by: Praveen Kumar <praveen.kumar@windriver.com>
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---
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setuptools/package_index.py | 20 ++++++++++++++++----
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1 file changed, 16 insertions(+), 4 deletions(-)
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diff --git a/setuptools/package_index.py b/setuptools/package_index.py
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index 1a6abeb..b317735 100644
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--- a/setuptools/package_index.py
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+++ b/setuptools/package_index.py
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@@ -807,9 +807,16 @@ class PackageIndex(Environment):
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else:
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raise DistutilsError(f"Download error for {url}: {v}") from v
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- def _download_url(self, url, tmpdir):
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- # Determine download filename
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- #
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+ @staticmethod
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+ def _resolve_download_filename(url, tmpdir):
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+ """
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+ >>> du = PackageIndex._resolve_download_filename
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+ >>> root = getfixture('tmp_path')
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+ >>> url = 'https://files.pythonhosted.org/packages/a9/5a/0db.../setuptools-78.1.0.tar.gz'
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+ >>> import pathlib
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+ >>> str(pathlib.Path(du(url, root)).relative_to(root))
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+ 'setuptools-78.1.0.tar.gz'
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+ """
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name, _fragment = egg_info_for_url(url)
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if name:
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while '..' in name:
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@@ -820,8 +827,13 @@ class PackageIndex(Environment):
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if name.endswith('.egg.zip'):
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name = name[:-4] # strip the extra .zip before download
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- filename = os.path.join(tmpdir, name)
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+ return os.path.join(tmpdir, name)
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+ def _download_url(self, url, tmpdir):
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+ """
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+ Determine the download filename.
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+ """
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+ filename = self._resolve_download_filename(url, tmpdir)
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return self._download_vcs(url, filename) or self._download_other(url, filename)
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@staticmethod
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--
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2.40.0
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