microsoft
/
CBL-Mariner
зеркало из https://github.com/microsoft/CBL-Mariner.git
1
0
Форкнуть 0
Код Задачи Пакеты Проекты Релизы Вики Активность

Merge pull request #588 from MateuszMalisz/mamalisz/pic-python-cve 

Pick Python and CVE fixes to 1.0
This commit is contained in:
jslobodzian 2021-02-02 20:09:51 -08:00 коммит произвёл GitHub
Родитель f35eb610c5 fd45cb83e4
Коммит 2a3b8a5e9f
Не найден ключ, соответствующий данной подписи
Идентификатор ключа GPG: 4AEE18F83AFDEB23
2 изменённых файлов: 193 добавлений и 7 удалений
Показать статистику Скачать Patch файл Скачать Diff файл Показать все файлы Свернуть все файлы

184
SPECS/python3/CVE-2021-3177.patch Normal file
Просмотреть файл

@ -0,0 +1,184 @@
From 7e223976ef9eca5eb539a21b8579138f301778df Mon Sep 17 00:00:00 2001
From: Benjamin Peterson <benjamin@python.org>
Date: Mon, 18 Jan 2021 14:47:05 -0600
Subject: [PATCH] [3.7] closes bpo-42938: Replace snprintf with Python unicode
formatting in ctypes param reprs. (24239). (cherry picked from commit
916610ef90a0d0761f08747f7b0905541f0977c7)
Co-authored-by: Benjamin Peterson <benjamin@python.org>
---
Lib/ctypes/test/test_parameters.py | 43 +++++++++++++++
.../2021-01-18-09-27-31.bpo-42938.4Zn4Mp.rst | 2 +
Modules/_ctypes/callproc.c | 55 +++++++------------
3 files changed, 66 insertions(+), 34 deletions(-)
create mode 100644 Misc/NEWS.d/next/Security/2021-01-18-09-27-31.bpo-42938.4Zn4Mp.rst
diff --git a/Lib/ctypes/test/test_parameters.py b/Lib/ctypes/test/test_parameters.py
index e4c25fd880cef..531894fdec838 100644
--- a/Lib/ctypes/test/test_parameters.py
+++ b/Lib/ctypes/test/test_parameters.py
@@ -201,6 +201,49 @@ def __dict__(self):
with self.assertRaises(ZeroDivisionError):
WorseStruct().__setstate__({}, b'foo')
+ def test_parameter_repr(self):
+ from ctypes import (
+ c_bool,
+ c_char,
+ c_wchar,
+ c_byte,
+ c_ubyte,
+ c_short,
+ c_ushort,
+ c_int,
+ c_uint,
+ c_long,
+ c_ulong,
+ c_longlong,
+ c_ulonglong,
+ c_float,
+ c_double,
+ c_longdouble,
+ c_char_p,
+ c_wchar_p,
+ c_void_p,
+ )
+ self.assertRegex(repr(c_bool.from_param(True)), r"^<cparam '\?' at 0x[A-Fa-f0-9]+>$")
+ self.assertEqual(repr(c_char.from_param(97)), "<cparam 'c' ('a')>")
+ self.assertRegex(repr(c_wchar.from_param('a')), r"^<cparam 'u' at 0x[A-Fa-f0-9]+>$")
+ self.assertEqual(repr(c_byte.from_param(98)), "<cparam 'b' (98)>")
+ self.assertEqual(repr(c_ubyte.from_param(98)), "<cparam 'B' (98)>")
+ self.assertEqual(repr(c_short.from_param(511)), "<cparam 'h' (511)>")
+ self.assertEqual(repr(c_ushort.from_param(511)), "<cparam 'H' (511)>")
+ self.assertRegex(repr(c_int.from_param(20000)), r"^<cparam '[li]' \(20000\)>$")
+ self.assertRegex(repr(c_uint.from_param(20000)), r"^<cparam '[LI]' \(20000\)>$")
+ self.assertRegex(repr(c_long.from_param(20000)), r"^<cparam '[li]' \(20000\)>$")
+ self.assertRegex(repr(c_ulong.from_param(20000)), r"^<cparam '[LI]' \(20000\)>$")
+ self.assertRegex(repr(c_longlong.from_param(20000)), r"^<cparam '[liq]' \(20000\)>$")
+ self.assertRegex(repr(c_ulonglong.from_param(20000)), r"^<cparam '[LIQ]' \(20000\)>$")
+ self.assertEqual(repr(c_float.from_param(1.5)), "<cparam 'f' (1.5)>")
+ self.assertEqual(repr(c_double.from_param(1.5)), "<cparam 'd' (1.5)>")
+ self.assertEqual(repr(c_double.from_param(1e300)), "<cparam 'd' (1e+300)>")
+ self.assertRegex(repr(c_longdouble.from_param(1.5)), r"^<cparam ('d' \(1.5\)|'g' at 0x[A-Fa-f0-9]+)>$")
+ self.assertRegex(repr(c_char_p.from_param(b'hihi')), "^<cparam 'z' \(0x[A-Fa-f0-9]+\)>$")
+ self.assertRegex(repr(c_wchar_p.from_param('hihi')), "^<cparam 'Z' \(0x[A-Fa-f0-9]+\)>$")
+ self.assertRegex(repr(c_void_p.from_param(0x12)), r"^<cparam 'P' \(0x0*12\)>$")
+
################################################################
if __name__ == '__main__':
diff --git a/Misc/NEWS.d/next/Security/2021-01-18-09-27-31.bpo-42938.4Zn4Mp.rst b/Misc/NEWS.d/next/Security/2021-01-18-09-27-31.bpo-42938.4Zn4Mp.rst
new file mode 100644
index 0000000000000..7df65a156feab
--- /dev/null
+++ b/Misc/NEWS.d/next/Security/2021-01-18-09-27-31.bpo-42938.4Zn4Mp.rst
@@ -0,0 +1,2 @@
+Avoid static buffers when computing the repr of :class:`ctypes.c_double` and
+:class:`ctypes.c_longdouble` values.
diff --git a/Modules/_ctypes/callproc.c b/Modules/_ctypes/callproc.c
index 73413531bdbf0..9cbf9801ad188 100644
--- a/Modules/_ctypes/callproc.c
+++ b/Modules/_ctypes/callproc.c
@@ -463,58 +463,47 @@ is_literal_char(unsigned char c)
static PyObject *
PyCArg_repr(PyCArgObject *self)
{
- char buffer[256];
switch(self->tag) {
case 'b':
case 'B':
- sprintf(buffer, "<cparam '%c' (%d)>",
+ return PyUnicode_FromFormat("<cparam '%c' (%d)>",
self->tag, self->value.b);
- break;
case 'h':
case 'H':
- sprintf(buffer, "<cparam '%c' (%d)>",
+ return PyUnicode_FromFormat("<cparam '%c' (%d)>",
self->tag, self->value.h);
- break;
case 'i':
case 'I':
- sprintf(buffer, "<cparam '%c' (%d)>",
+ return PyUnicode_FromFormat("<cparam '%c' (%d)>",
self->tag, self->value.i);
- break;
case 'l':
case 'L':
- sprintf(buffer, "<cparam '%c' (%ld)>",
+ return PyUnicode_FromFormat("<cparam '%c' (%ld)>",
self->tag, self->value.l);
- break;
case 'q':
case 'Q':
- sprintf(buffer,
-#ifdef MS_WIN32
- "<cparam '%c' (%I64d)>",
-#else
- "<cparam '%c' (%lld)>",
-#endif
+ return PyUnicode_FromFormat("<cparam '%c' (%lld)>",
self->tag, self->value.q);
- break;
case 'd':
- sprintf(buffer, "<cparam '%c' (%f)>",
- self->tag, self->value.d);
- break;
- case 'f':
- sprintf(buffer, "<cparam '%c' (%f)>",
- self->tag, self->value.f);
- break;
-
+ case 'f': {
+ PyObject *f = PyFloat_FromDouble((self->tag == 'f') ? self->value.f : self->value.d);
+ if (f == NULL) {
+ return NULL;
+ }
+ PyObject *result = PyUnicode_FromFormat("<cparam '%c' (%R)>", self->tag, f);
+ Py_DECREF(f);
+ return result;
+ }
case 'c':
if (is_literal_char((unsigned char)self->value.c)) {
- sprintf(buffer, "<cparam '%c' ('%c')>",
+ return PyUnicode_FromFormat("<cparam '%c' ('%c')>",
self->tag, self->value.c);
}
else {
- sprintf(buffer, "<cparam '%c' ('\\x%02x')>",
+ return PyUnicode_FromFormat("<cparam '%c' ('\\x%02x')>",
self->tag, (unsigned char)self->value.c);
}
- break;
/* Hm, are these 'z' and 'Z' codes useful at all?
Shouldn't they be replaced by the functionality of c_string
@@ -523,22 +512,20 @@ PyCArg_repr(PyCArgObject *self)
case 'z':
case 'Z':
case 'P':
- sprintf(buffer, "<cparam '%c' (%p)>",
+ return PyUnicode_FromFormat("<cparam '%c' (%p)>",
self->tag, self->value.p);
break;
default:
if (is_literal_char((unsigned char)self->tag)) {
- sprintf(buffer, "<cparam '%c' at %p>",
- (unsigned char)self->tag, self);
+ return PyUnicode_FromFormat("<cparam '%c' at %p>",
+ (unsigned char)self->tag, (void *)self);
}
else {
- sprintf(buffer, "<cparam 0x%02x at %p>",
- (unsigned char)self->tag, self);
+ return PyUnicode_FromFormat("<cparam 0x%02x at %p>",
+ (unsigned char)self->tag, (void *)self);
}
- break;
}
- return PyUnicode_FromString(buffer);
}
static PyMemberDef PyCArgType_members[] = {

16
SPECS/python3/python3.spec
Просмотреть файл

@ -2,7 +2,7 @@
Summary: A high-level scripting language
Name: python3
Version: 3.7.9
Release: 3%{?dist}
Release: 4%{?dist}
License: PSF
Vendor: Microsoft Corporation
Distribution: Mariner
@ -14,6 +14,7 @@ Patch1: python3-support-mariner-platform.patch
Patch2: Replace-unsupported-TLS-methods.patch
# CVE-2020-27619 patch is pulled from upstream commit
Patch3: CVE-2020-27619.patch
Patch4: CVE-2021-3177.patch
BuildRequires: bzip2-devel
BuildRequires: expat-devel >= 2.1.0
BuildRequires: libffi-devel >= 3.0.13
@ -119,8 +120,8 @@ The PyPA recommended tool for installing Python packages.
%package setuptools
Summary: Download, build, install, upgrade, and uninstall Python packages.
Group: Development/Tools
Requires: python3-xml
Requires: python3 = %{version}-%{release}
Requires: python3-xml
BuildArch: noarch
%description setuptools
@ -135,11 +136,7 @@ Requires: python3 = %{version}-%{release}
The test package contains all regression tests for Python as well as the modules test.support and test.regrtest. test.support is used to enhance your tests while test.regrtest drives the testing suite.
%prep
%setup -q -n Python-%{version}
%patch0 -p1
%patch1 -p1
%patch2 -p1
%patch3 -p1
%autosetup -p1 -n Python-%{version}
%build
export OPT="%{optflags} %{openssl_flags}"
@ -175,6 +172,8 @@ make %{?_smp_mflags} test
rm -rf %{buildroot}/*
%files
%defattr(-, root, root)
%license LICENSE
@ -264,6 +263,9 @@ rm -rf %{buildroot}/*
%{_libdir}/python3.7/test/*
%changelog
* Fri Jan 29 2021 Nick Samson <nisamson@microsoft.com> - 3.7.9-4
- Patched CVE-2021-3177 with backported patch. Moved to autosetup.
* Mon Nov 16 2020 Pawel Winogrodzki <pawelwi@microsoft.com> - 3.7.9-3
- Adding explicit runtime dependency on 'python3-xml' for the 'python3-setuptool' subpackage.