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python3: patch CVE-2024-9287
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Taken from python/cpython#126185 which is a 3.12 backport of
python/cpython#124712

Signed-off-by: Saul Paredes <[email protected]>
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Redent0r committed Nov 7, 2024
1 parent 32d38c5 commit 71588af
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343 changes: 343 additions & 0 deletions SPECS/python3/CVE-2024-9287.patch
Original file line number Diff line number Diff line change
@@ -0,0 +1,343 @@
From 697b53a06eca774b496190be50dc5879984b407f Mon Sep 17 00:00:00 2001
From: Saul Paredes <[email protected]>
Date: Wed, 6 Nov 2024 16:43:27 -0800
Subject: [PATCH] python3: patch CVE-2024-9287

Adapted from https://github.com/python/cpython/commit/8450b2482586857d689b6658f08de9c8179af7db (fixed whitespaces)

Signed-off-by: Saul Paredes <[email protected]>
---
Lib/test/test_venv.py | 81 +++++++++++++++++++
Lib/venv/__init__.py | 42 ++++++++--
Lib/venv/scripts/common/activate | 10 +--
Lib/venv/scripts/nt/activate.bat | 30 +++----
Lib/venv/scripts/posix/activate.csh | 8 +-
Lib/venv/scripts/posix/activate.fish | 8 +-
...-09-28-02-03-04.gh-issue-124651.bLBGtH.rst | 1 +
7 files changed, 147 insertions(+), 33 deletions(-)
create mode 100644 Misc/NEWS.d/next/Library/2024-09-28-02-03-04.gh-issue-124651.bLBGtH.rst

diff --git a/Lib/test/test_venv.py b/Lib/test/test_venv.py
index 2f44176..e01cf03 100644
--- a/Lib/test/test_venv.py
+++ b/Lib/test/test_venv.py
@@ -17,6 +17,7 @@ import subprocess
import sys
import sysconfig
import tempfile
+import shlex
from test.support import (captured_stdout, captured_stderr,
skip_if_broken_multiprocessing_synchronize, verbose,
requires_subprocess, is_emscripten, is_wasi,
@@ -96,6 +97,10 @@ 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."""

@@ -445,6 +450,82 @@ 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):
"""
diff --git a/Lib/venv/__init__.py b/Lib/venv/__init__.py
index 2173c9b..53486d5 100644
--- 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',)
@@ -395,11 +396,41 @@ 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):
@@ -439,6 +470,7 @@ 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)
diff --git a/Lib/venv/scripts/common/activate b/Lib/venv/scripts/common/activate
index d5914e0..47602ca 100644
--- a/Lib/venv/scripts/common/activate
+++ b/Lib/venv/scripts/common/activate
@@ -39,14 +39,14 @@ deactivate nondestructive
if [ "${OSTYPE:-}" = "cygwin" ] || [ "${OSTYPE:-}" = "msys" ] ; then
# transform D:\path\to\venv to /d/path/to/venv on MSYS
# and to /cygdrive/d/path/to/venv on Cygwin
- export VIRTUAL_ENV=$(cygpath "__VENV_DIR__")
+ export VIRTUAL_ENV=$(cygpath __VENV_DIR__)
else
# use the path as-is
- export VIRTUAL_ENV="__VENV_DIR__"
+ export VIRTUAL_ENV=__VENV_DIR__
fi

_OLD_VIRTUAL_PATH="$PATH"
-PATH="$VIRTUAL_ENV/__VENV_BIN_NAME__:$PATH"
+PATH="$VIRTUAL_ENV/"__VENV_BIN_NAME__":$PATH"
export PATH

# unset PYTHONHOME if set
@@ -59,9 +59,9 @@ fi

if [ -z "${VIRTUAL_ENV_DISABLE_PROMPT:-}" ] ; then
_OLD_VIRTUAL_PS1="${PS1:-}"
- PS1="__VENV_PROMPT__${PS1:-}"
+ PS1=__VENV_PROMPT__"${PS1:-}"
export PS1
- VIRTUAL_ENV_PROMPT="__VENV_PROMPT__"
+ VIRTUAL_ENV_PROMPT=__VENV_PROMPT__
export VIRTUAL_ENV_PROMPT
fi

diff --git a/Lib/venv/scripts/nt/activate.bat b/Lib/venv/scripts/nt/activate.bat
index 5daa45a..0b3e583 100644
--- a/Lib/venv/scripts/nt/activate.bat
+++ b/Lib/venv/scripts/nt/activate.bat
@@ -5,13 +5,13 @@ for /f "tokens=2 delims=:." %%a in ('"%SystemRoot%\System32\chcp.com"') do (
set _OLD_CODEPAGE=%%a
)
if defined _OLD_CODEPAGE (
- "%SystemRoot%\System32\chcp.com" 65001 > nul
-)
-
-set VIRTUAL_ENV=__VENV_DIR__
-
-if not defined PROMPT set PROMPT=$P$G
-
+ "%SystemRoot%\System32\chcp.com" 65001 > nul
+)
+
+set "VIRTUAL_ENV=__VENV_DIR__"
+
+if not defined PROMPT set PROMPT=$P$G
+
if defined _OLD_VIRTUAL_PROMPT set PROMPT=%_OLD_VIRTUAL_PROMPT%
if defined _OLD_VIRTUAL_PYTHONHOME set PYTHONHOME=%_OLD_VIRTUAL_PYTHONHOME%

@@ -21,14 +21,14 @@ set PROMPT=__VENV_PROMPT__%PROMPT%
if defined PYTHONHOME set _OLD_VIRTUAL_PYTHONHOME=%PYTHONHOME%
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 VIRTUAL_ENV_PROMPT=__VENV_PROMPT__
-
-:END
-if defined _OLD_CODEPAGE (
+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 "VIRTUAL_ENV_PROMPT=__VENV_PROMPT__"
+
+:END
+if defined _OLD_CODEPAGE (
"%SystemRoot%\System32\chcp.com" %_OLD_CODEPAGE% > nul
set _OLD_CODEPAGE=
)
diff --git a/Lib/venv/scripts/posix/activate.csh b/Lib/venv/scripts/posix/activate.csh
index 5e8d66f..08f7929 100644
--- a/Lib/venv/scripts/posix/activate.csh
+++ b/Lib/venv/scripts/posix/activate.csh
@@ -9,17 +9,17 @@ alias deactivate 'test $?_OLD_VIRTUAL_PATH != 0 && setenv PATH "$_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"
- setenv VIRTUAL_ENV_PROMPT "__VENV_PROMPT__"
+ set prompt = __VENV_PROMPT__"$prompt"
+ setenv VIRTUAL_ENV_PROMPT __VENV_PROMPT__
endif

alias pydoc python -m pydoc
diff --git a/Lib/venv/scripts/posix/activate.fish b/Lib/venv/scripts/posix/activate.fish
index 91ad644..508cab0 100644
--- a/Lib/venv/scripts/posix/activate.fish
+++ b/Lib/venv/scripts/posix/activate.fish
@@ -33,10 +33,10 @@ 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
@@ -56,7 +56,7 @@ 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 $old_status" | .
@@ -65,5 +65,5 @@ if test -z "$VIRTUAL_ENV_DISABLE_PROMPT"
end

set -gx _OLD_FISH_PROMPT_OVERRIDE "$VIRTUAL_ENV"
- set -gx VIRTUAL_ENV_PROMPT "__VENV_PROMPT__"
+ set -gx VIRTUAL_ENV_PROMPT __VENV_PROMPT__
end
diff --git a/Misc/NEWS.d/next/Library/2024-09-28-02-03-04.gh-issue-124651.bLBGtH.rst b/Misc/NEWS.d/next/Library/2024-09-28-02-03-04.gh-issue-124651.bLBGtH.rst
new file mode 100644
index 0000000..17fc917
--- /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.
--
2.25.1

6 changes: 5 additions & 1 deletion SPECS/python3/python3.spec
Original file line number Diff line number Diff line change
Expand Up @@ -6,7 +6,7 @@
Summary: A high-level scripting language
Name: python3
Version: 3.12.3
Release: 4%{?dist}
Release: 5%{?dist}
License: PSF
Vendor: Microsoft Corporation
Distribution: Azure Linux
Expand All @@ -21,6 +21,7 @@ Patch1: CVE-2024-7592.patch
Patch2: CVE-2024-6923.patch
Patch3: CVE-2024-6232.patch
Patch4: CVE-2024-8088.patch
Patch5: CVE-2024-9287.patch

BuildRequires: bzip2-devel
BuildRequires: expat-devel >= 2.1.0
Expand Down Expand Up @@ -242,6 +243,9 @@ rm -rf %{buildroot}%{_bindir}/__pycache__
%{_libdir}/python%{majmin}/test/*

%changelog
* Wed Nov 6 2024 Saul Paredes <[email protected]> - 3.12.3-5
- Patch CVE-2024-9287

* Fri Sep 20 2024 Himaja Kesari <[email protected]> - 3.12.3-4
- Patch CVE-2024-6232 and CVE-2024-8088

Expand Down
6 changes: 3 additions & 3 deletions toolkit/resources/manifests/package/pkggen_core_aarch64.txt
Original file line number Diff line number Diff line change
Expand Up @@ -240,9 +240,9 @@ ca-certificates-base-3.0.0-7.azl3.noarch.rpm
ca-certificates-3.0.0-7.azl3.noarch.rpm
dwz-0.14-2.azl3.aarch64.rpm
unzip-6.0-20.azl3.aarch64.rpm
python3-3.12.3-4.azl3.aarch64.rpm
python3-devel-3.12.3-4.azl3.aarch64.rpm
python3-libs-3.12.3-4.azl3.aarch64.rpm
python3-3.12.3-5.azl3.aarch64.rpm
python3-devel-3.12.3-5.azl3.aarch64.rpm
python3-libs-3.12.3-5.azl3.aarch64.rpm
python3-setuptools-69.0.3-4.azl3.noarch.rpm
python3-pygments-2.7.4-2.azl3.noarch.rpm
which-2.21-8.azl3.aarch64.rpm
Expand Down
6 changes: 3 additions & 3 deletions toolkit/resources/manifests/package/pkggen_core_x86_64.txt
Original file line number Diff line number Diff line change
Expand Up @@ -240,9 +240,9 @@ ca-certificates-base-3.0.0-7.azl3.noarch.rpm
ca-certificates-3.0.0-7.azl3.noarch.rpm
dwz-0.14-2.azl3.x86_64.rpm
unzip-6.0-20.azl3.x86_64.rpm
python3-3.12.3-4.azl3.x86_64.rpm
python3-devel-3.12.3-4.azl3.x86_64.rpm
python3-libs-3.12.3-4.azl3.x86_64.rpm
python3-3.12.3-5.azl3.x86_64.rpm
python3-devel-3.12.3-5.azl3.x86_64.rpm
python3-libs-3.12.3-5.azl3.x86_64.rpm
python3-setuptools-69.0.3-4.azl3.noarch.rpm
python3-pygments-2.7.4-2.azl3.noarch.rpm
which-2.21-8.azl3.x86_64.rpm
Expand Down
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