python-setuptools/SOURCES/CVE-2025-47273.patch

30 lines
873 B
Diff

From 19d6fa7fcb22aef8192dcbc0adb920c12cb6a648 Mon Sep 17 00:00:00 2001
From: "Jason R. Coombs" <jaraco@jaraco.com>
Date: Sat, 19 Apr 2025 13:03:47 -0400
Subject: [PATCH] Add a check to ensure the name resolves relative to the
tmpdir.
Closes #4946
---
setuptools/package_index.py | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/setuptools/package_index.py b/setuptools/package_index.py
index f52592a..ebafe9f 100644
--- a/setuptools/package_index.py
+++ b/setuptools/package_index.py
@@ -828,6 +828,10 @@ class PackageIndex(Environment):
filename = os.path.join(tmpdir, name)
+ # ensure path resolves within the tmpdir
+ if not filename.startswith(str(tmpdir)):
+ raise ValueError(f"Invalid filename {filename}")
+
# Download the file
#
if scheme == 'svn' or scheme.startswith('svn+'):
--
2.49.0