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python39/CVE-2024-9287-venv_path_unquoted.patch
Matej Cepl 0e5b96eafc - Update to 3.9.21: 
- Tests
    - gh-125041: Re-enable skipped tests for zlib on the
      s390x architecture: only skip checks of the compressed
      bytes, which can be different between zlib’s software
      implementation and the hardware-accelerated implementation.
    - gh-109396: Fix test_socket.test_hmac_sha1() in FIPS
      mode. Use a longer key: FIPS mode requires at least of at
      least 112 bits. The previous key was only 32 bits. Patch by
      Victor Stinner.
    - gh-100454: Fix SSL tests CI for OpenSSL 3.1+
  - Security
    - gh-126623: Upgrade libexpat to 2.6.4
    - gh-122792: Changed IPv4-mapped ipaddress.IPv6Address to
      consistently use the mapped IPv4 address value for deciding
      properties. Properties which have their behavior fixed are
      is_multicast, is_reserved, is_link_local, is_global, and
      is_unspecified.
  - Library
    - gh-124651: Properly quote template strings in venv
      activation scripts.
    - gh-103848: Add checks to ensure that [ bracketed ] hosts
      found by urllib.parse.urlsplit() are of IPv6 or IPvFuture
      format.
  - Documentation
    - gh-95588: Clarified the conflicting advice given in the ast
      documentation about ast.literal_eval() being “safe” for use
      on untrusted input while at the same time warning that it
      can crash the process. The latter statement is true and is
      deemed unfixable without a large amount of work unsuitable

OBS-URL: https://build.opensuse.org/package/show/devel:languages:python:Factory/python39?expand=0&rev=219
2024-12-04 19:54:44 +00:00

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From ae0d64cb185900712c40a65d7d8aa118f9903d57 Mon Sep 17 00:00:00 2001
From: Victor Stinner <vstinner@python.org>
Date: Fri, 1 Nov 2024 14:11:47 +0100
Subject: [PATCH] [3.11] gh-124651: Quote template strings in `venv` activation
scripts (GH-124712) (GH-126185) (#126269)
(cherry picked from commit ae961ae94bf19c8f8c7fbea3d1c25cc55ce8ae97)
---
Lib/test/test_venv.py | 81 ++++++++++
Lib/venv/__init__.py | 42 ++++-
Lib/venv/scripts/common/activate | 6
Lib/venv/scripts/nt/activate.bat | 4
Lib/venv/scripts/posix/activate.csh | 6
Lib/venv/scripts/posix/activate.fish | 6
Misc/NEWS.d/next/Library/2024-09-28-02-03-04.gh-issue-124651.bLBGtH.rst | 1
7 files changed, 130 insertions(+), 16 deletions(-)
create mode 100644 Misc/NEWS.d/next/Library/2024-09-28-02-03-04.gh-issue-124651.bLBGtH.rst
--- a/Lib/test/test_venv.py
+++ b/Lib/test/test_venv.py
@@ -14,6 +14,7 @@ import struct
import subprocess
import sys
import tempfile
+import shlex
from test.support import (captured_stdout, captured_stderr, requires_zlib,
can_symlink, EnvironmentVarGuard, rmtree,
import_module,
@@ -85,6 +86,10 @@ class BaseTest(unittest.TestCase):
result = f.read()
return result
+ def assertEndsWith(self, string, tail):
+ if not string.endswith(tail):
+ self.fail(f"String {string!r} does not end with {tail!r}")
+
class BasicTest(BaseTest):
"""Test venv module functionality."""
@@ -342,6 +347,82 @@ class BasicTest(BaseTest):
'import sys; print(sys.executable)'])
self.assertEqual(out.strip(), envpy.encode())
+ # gh-124651: test quoted strings
+ @unittest.skipIf(os.name == 'nt', 'contains invalid characters on Windows')
+ def test_special_chars_bash(self):
+ """
+ Test that the template strings are quoted properly (bash)
+ """
+ rmtree(self.env_dir)
+ bash = shutil.which('bash')
+ if bash is None:
+ self.skipTest('bash required for this test')
+ env_name = '"\';&&$e|\'"'
+ env_dir = os.path.join(os.path.realpath(self.env_dir), env_name)
+ builder = venv.EnvBuilder(clear=True)
+ builder.create(env_dir)
+ activate = os.path.join(env_dir, self.bindir, 'activate')
+ test_script = os.path.join(self.env_dir, 'test_special_chars.sh')
+ with open(test_script, "w") as f:
+ f.write(f'source {shlex.quote(activate)}\n'
+ 'python -c \'import sys; print(sys.executable)\'\n'
+ 'python -c \'import os; print(os.environ["VIRTUAL_ENV"])\'\n'
+ 'deactivate\n')
+ out, err = check_output([bash, test_script])
+ lines = out.splitlines()
+ self.assertTrue(env_name.encode() in lines[0])
+ self.assertEndsWith(lines[1], env_name.encode())
+
+ # gh-124651: test quoted strings
+ @unittest.skipIf(os.name == 'nt', 'contains invalid characters on Windows')
+ def test_special_chars_csh(self):
+ """
+ Test that the template strings are quoted properly (csh)
+ """
+ rmtree(self.env_dir)
+ csh = shutil.which('tcsh') or shutil.which('csh')
+ if csh is None:
+ self.skipTest('csh required for this test')
+ env_name = '"\';&&$e|\'"'
+ env_dir = os.path.join(os.path.realpath(self.env_dir), env_name)
+ builder = venv.EnvBuilder(clear=True)
+ builder.create(env_dir)
+ activate = os.path.join(env_dir, self.bindir, 'activate.csh')
+ test_script = os.path.join(self.env_dir, 'test_special_chars.csh')
+ with open(test_script, "w") as f:
+ f.write(f'source {shlex.quote(activate)}\n'
+ 'python -c \'import sys; print(sys.executable)\'\n'
+ 'python -c \'import os; print(os.environ["VIRTUAL_ENV"])\'\n'
+ 'deactivate\n')
+ out, err = check_output([csh, test_script])
+ lines = out.splitlines()
+ self.assertTrue(env_name.encode() in lines[0])
+ self.assertEndsWith(lines[1], env_name.encode())
+
+ # gh-124651: test quoted strings on Windows
+ @unittest.skipUnless(os.name == 'nt', 'only relevant on Windows')
+ def test_special_chars_windows(self):
+ """
+ Test that the template strings are quoted properly on Windows
+ """
+ rmtree(self.env_dir)
+ env_name = "'&&^$e"
+ env_dir = os.path.join(os.path.realpath(self.env_dir), env_name)
+ builder = venv.EnvBuilder(clear=True)
+ builder.create(env_dir)
+ activate = os.path.join(env_dir, self.bindir, 'activate.bat')
+ test_batch = os.path.join(self.env_dir, 'test_special_chars.bat')
+ with open(test_batch, "w") as f:
+ f.write('@echo off\n'
+ f'"{activate}" & '
+ f'{self.exe} -c "import sys; print(sys.executable)" & '
+ f'{self.exe} -c "import os; print(os.environ[\'VIRTUAL_ENV\'])" & '
+ 'deactivate')
+ out, err = check_output([test_batch])
+ lines = out.splitlines()
+ self.assertTrue(env_name.encode() in lines[0])
+ self.assertEndsWith(lines[1], env_name.encode())
+
@unittest.skipUnless(os.name == 'nt', 'only relevant on Windows')
def test_unicode_in_batch_file(self):
"""
--- a/Lib/venv/__init__.py
+++ b/Lib/venv/__init__.py
@@ -11,6 +11,7 @@ import subprocess
import sys
import sysconfig
import types
+import shlex
CORE_VENV_DEPS = ('pip', 'setuptools')
@@ -348,11 +349,41 @@ class EnvBuilder:
:param context: The information for the environment creation request
being processed.
"""
- text = text.replace('__VENV_DIR__', context.env_dir)
- text = text.replace('__VENV_NAME__', context.env_name)
- text = text.replace('__VENV_PROMPT__', context.prompt)
- text = text.replace('__VENV_BIN_NAME__', context.bin_name)
- text = text.replace('__VENV_PYTHON__', context.env_exe)
+ replacements = {
+ '__VENV_DIR__': context.env_dir,
+ '__VENV_NAME__': context.env_name,
+ '__VENV_PROMPT__': context.prompt,
+ '__VENV_BIN_NAME__': context.bin_name,
+ '__VENV_PYTHON__': context.env_exe,
+ }
+
+ def quote_ps1(s):
+ """
+ This should satisfy PowerShell quoting rules [1], unless the quoted
+ string is passed directly to Windows native commands [2].
+ [1]: https://learn.microsoft.com/en-us/powershell/module/microsoft.powershell.core/about/about_quoting_rules
+ [2]: https://learn.microsoft.com/en-us/powershell/module/microsoft.powershell.core/about/about_parsing#passing-arguments-that-contain-quote-characters
+ """
+ s = s.replace("'", "''")
+ return f"'{s}'"
+
+ def quote_bat(s):
+ return s
+
+ # gh-124651: need to quote the template strings properly
+ quote = shlex.quote
+ script_path = context.script_path
+ if script_path.endswith('.ps1'):
+ quote = quote_ps1
+ elif script_path.endswith('.bat'):
+ quote = quote_bat
+ else:
+ # fallbacks to POSIX shell compliant quote
+ quote = shlex.quote
+
+ replacements = {key: quote(s) for key, s in replacements.items()}
+ for key, quoted in replacements.items():
+ text = text.replace(key, quoted)
return text
def install_scripts(self, context, path):
@@ -392,6 +423,7 @@ class EnvBuilder:
with open(srcfile, 'rb') as f:
data = f.read()
if not srcfile.endswith(('.exe', '.pdb')):
+ context.script_path = srcfile
try:
data = data.decode('utf-8')
data = self.replace_variables(data, context)
--- a/Lib/venv/scripts/common/activate
+++ b/Lib/venv/scripts/common/activate
@@ -37,11 +37,11 @@ deactivate () {
# unset irrelevant variables
deactivate nondestructive
-VIRTUAL_ENV="__VENV_DIR__"
+VIRTUAL_ENV=__VENV_DIR__
export VIRTUAL_ENV
_OLD_VIRTUAL_PATH="$PATH"
-PATH="$VIRTUAL_ENV/__VENV_BIN_NAME__:$PATH"
+PATH="$VIRTUAL_ENV/"__VENV_BIN_NAME__":$PATH"
export PATH
# unset PYTHONHOME if set
@@ -54,7 +54,7 @@ fi
if [ -z "${VIRTUAL_ENV_DISABLE_PROMPT:-}" ] ; then
_OLD_VIRTUAL_PS1="${PS1:-}"
- PS1="__VENV_PROMPT__${PS1:-}"
+ PS1=__VENV_PROMPT__"${PS1:-}"
export PS1
fi
--- a/Lib/venv/scripts/nt/activate.bat
+++ b/Lib/venv/scripts/nt/activate.bat
@@ -8,7 +8,7 @@ if defined _OLD_CODEPAGE (
"%SystemRoot%\System32\chcp.com" 65001 > nul
)
-set VIRTUAL_ENV=__VENV_DIR__
+set "VIRTUAL_ENV=__VENV_DIR__"
if not defined PROMPT set PROMPT=$P$G
@@ -24,7 +24,7 @@ set PYTHONHOME=
if defined _OLD_VIRTUAL_PATH set PATH=%_OLD_VIRTUAL_PATH%
if not defined _OLD_VIRTUAL_PATH set _OLD_VIRTUAL_PATH=%PATH%
-set PATH=%VIRTUAL_ENV%\__VENV_BIN_NAME__;%PATH%
+set "PATH=%VIRTUAL_ENV%\__VENV_BIN_NAME__;%PATH%"
:END
if defined _OLD_CODEPAGE (
--- a/Lib/venv/scripts/posix/activate.csh
+++ b/Lib/venv/scripts/posix/activate.csh
@@ -8,16 +8,16 @@ alias deactivate 'test $?_OLD_VIRTUAL_PA
# Unset irrelevant variables.
deactivate nondestructive
-setenv VIRTUAL_ENV "__VENV_DIR__"
+setenv VIRTUAL_ENV __VENV_DIR__
set _OLD_VIRTUAL_PATH="$PATH"
-setenv PATH "$VIRTUAL_ENV/__VENV_BIN_NAME__:$PATH"
+setenv PATH "$VIRTUAL_ENV/"__VENV_BIN_NAME__":$PATH"
set _OLD_VIRTUAL_PROMPT="$prompt"
if (! "$?VIRTUAL_ENV_DISABLE_PROMPT") then
- set prompt = "__VENV_PROMPT__$prompt"
+ set prompt = __VENV_PROMPT__"$prompt"
endif
alias pydoc python -m pydoc
--- a/Lib/venv/scripts/posix/activate.fish
+++ b/Lib/venv/scripts/posix/activate.fish
@@ -29,10 +29,10 @@ end
# Unset irrelevant variables.
deactivate nondestructive
-set -gx VIRTUAL_ENV "__VENV_DIR__"
+set -gx VIRTUAL_ENV __VENV_DIR__
set -gx _OLD_VIRTUAL_PATH $PATH
-set -gx PATH "$VIRTUAL_ENV/__VENV_BIN_NAME__" $PATH
+set -gx PATH "$VIRTUAL_ENV/"__VENV_BIN_NAME__ $PATH
# Unset PYTHONHOME if set.
if set -q PYTHONHOME
@@ -52,7 +52,7 @@ if test -z "$VIRTUAL_ENV_DISABLE_PROMPT"
set -l old_status $status
# Output the venv prompt; color taken from the blue of the Python logo.
- printf "%s%s%s" (set_color 4B8BBE) "__VENV_PROMPT__" (set_color normal)
+ printf "%s%s%s" (set_color 4B8BBE) __VENV_PROMPT__ (set_color normal)
# Restore the return status of the previous command.
echo "exit $old_status" | .
--- /dev/null
+++ b/Misc/NEWS.d/next/Library/2024-09-28-02-03-04.gh-issue-124651.bLBGtH.rst
@@ -0,0 +1 @@
+Properly quote template strings in :mod:`venv` activation scripts.
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