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python3-zipp: fix CVE-2024-5569
According to [1] which provided the fix link [2], but upstream author reworked it later [3][4][5] Backport and rebase all the patches for tracing [1] https://nvd.nist.gov/vuln/detail/CVE-2024-5569 [2]fd604bd34f[3]3cb5609002[4]f89b93f037[5]cc61e6140f(From OE-Core rev: 13bd99e17f0aca108839e81e9aa0b14351116fdf) Signed-off-by: Hongxu Jia <hongxu.jia@windriver.com> Signed-off-by: Steve Sakoman <steve@sakoman.com>
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Steve Sakoman
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@@ -0,0 +1,89 @@
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From ef2227e35d1ae833b7bfa1674a45f58c732ae1a6 Mon Sep 17 00:00:00 2001
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From: "Jason R. Coombs" <jaraco@jaraco.com>
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Date: Wed, 27 Nov 2024 23:27:57 -0800
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Subject: [PATCH 1/5] Add SanitizedNames mixin.
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Upstream-Status: Backport [https://github.com/jaraco/zipp/commit/564fcc10cdbfdaecdb33688e149827465931c9e0]
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CVE: CVE-2024-5569
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Rebase to v3.7.0
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Signed-off-by: Hongxu Jia <hongxu.jia@windriver.com>
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---
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zipp.py | 62 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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1 file changed, 62 insertions(+)
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diff --git a/zipp.py b/zipp.py
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index 26b723c..8f0950f 100644
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--- a/zipp.py
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+++ b/zipp.py
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@@ -68,6 +68,68 @@ def _difference(minuend, subtrahend):
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return itertools.filterfalse(set(subtrahend).__contains__, minuend)
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+class SanitizedNames:
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+ """
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+ ZipFile mix-in to ensure names are sanitized.
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+ """
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+
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+ def namelist(self):
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+ return list(map(self._sanitize, super().namelist()))
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+
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+ @staticmethod
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+ def _sanitize(name):
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+ r"""
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+ Ensure a relative path with posix separators and no dot names.
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+
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+ Modeled after
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+ https://github.com/python/cpython/blob/bcc1be39cb1d04ad9fc0bd1b9193d3972835a57c/Lib/zipfile/__init__.py#L1799-L1813
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+ but provides consistent cross-platform behavior.
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+
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+ >>> san = SanitizedNames._sanitize
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+ >>> san('/foo/bar')
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+ 'foo/bar'
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+ >>> san('//foo.txt')
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+ 'foo.txt'
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+ >>> san('foo/.././bar.txt')
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+ 'foo/bar.txt'
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+ >>> san('foo../.bar.txt')
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+ 'foo../.bar.txt'
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+ >>> san('\\foo\\bar.txt')
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+ 'foo/bar.txt'
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+ >>> san('D:\\foo.txt')
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+ 'D/foo.txt'
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+ >>> san('\\\\server\\share\\file.txt')
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+ 'server/share/file.txt'
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+ >>> san('\\\\?\\GLOBALROOT\\Volume3')
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+ '?/GLOBALROOT/Volume3'
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+ >>> san('\\\\.\\PhysicalDrive1\\root')
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+ 'PhysicalDrive1/root'
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+
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+ Retain any trailing slash.
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+ >>> san('abc/')
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+ 'abc/'
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+
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+ Raises a ValueError if the result is empty.
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+ >>> san('../..')
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+ Traceback (most recent call last):
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+ ...
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+ ValueError: Empty filename
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+ """
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+
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+ def allowed(part):
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+ return part and part not in {'..', '.'}
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+
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+ # Remove the drive letter.
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+ # Don't use ntpath.splitdrive, because that also strips UNC paths
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+ bare = re.sub('^([A-Z]):', r'\1', name, flags=re.IGNORECASE)
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+ clean = bare.replace('\\', '/')
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+ parts = clean.split('/')
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+ joined = '/'.join(filter(allowed, parts))
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+ if not joined:
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+ raise ValueError("Empty filename")
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+ return joined + '/' * name.endswith('/')
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+
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+
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class CompleteDirs(zipfile.ZipFile):
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"""
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A ZipFile subclass that ensures that implied directories
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--
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2.25.1
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