!47 fix CVE-2024-34064
From: @xuchenc Reviewed-by: @dillon_chen Signed-off-by: @dillon_chen
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commit
bf97ca7b4d
105
0001-disallow-invalid-characters-in-keys-to-xmlattr-filte.patch
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105
0001-disallow-invalid-characters-in-keys-to-xmlattr-filte.patch
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From d655030770081e2dfe46f90e27620472a502289d Mon Sep 17 00:00:00 2001
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From: David Lord <davidism@gmail.com>
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Date: Tue, 7 May 2024 10:19:28 +0800
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Subject: [PATCH] disallow invalid characters in keys to xmlattr filter
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---
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Jinja2-3.1.3/CHANGES.rst | 6 ++++++
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Jinja2-3.1.3/src/jinja2/filters.py | 21 ++++++++++++++++-----
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Jinja2-3.1.3/tests/test_filters.py | 11 ++++++-----
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3 files changed, 28 insertions(+), 10 deletions(-)
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diff --git a/Jinja2-3.1.3/CHANGES.rst b/Jinja2-3.1.3/CHANGES.rst
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index 08a1785..f70cacb 100644
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--- a/Jinja2-3.1.3/CHANGES.rst
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+++ b/Jinja2-3.1.3/CHANGES.rst
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@@ -1,5 +1,11 @@
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.. currentmodule:: jinja2
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+- The ``xmlattr`` filter does not allow keys with ``/`` solidus, ``>``
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+ greater-than sign, or ``=`` equals sign, in addition to disallowing spaces.
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+ Regardless of any validation done by Jinja, user input should never be used
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+ as keys to this filter, or must be separately validated first.
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+ GHSA-h75v-3vvj-5mfj
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+
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Version 3.1.3
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-------------
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diff --git a/Jinja2-3.1.3/src/jinja2/filters.py b/Jinja2-3.1.3/src/jinja2/filters.py
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index c7ecc9b..c73dd89 100644
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--- a/Jinja2-3.1.3/src/jinja2/filters.py
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+++ b/Jinja2-3.1.3/src/jinja2/filters.py
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@@ -248,7 +248,9 @@ def do_items(value: t.Union[t.Mapping[K, V], Undefined]) -> t.Iterator[t.Tuple[K
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yield from value.items()
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-_space_re = re.compile(r"\s", flags=re.ASCII)
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+# Check for characters that would move the parser state from key to value.
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+# https://html.spec.whatwg.org/#attribute-name-state
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+_attr_key_re = re.compile(r"[\s/>=]", flags=re.ASCII)
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@pass_eval_context
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@@ -257,8 +259,13 @@ def do_xmlattr(
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) -> str:
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"""Create an SGML/XML attribute string based on the items in a dict.
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- If any key contains a space, this fails with a ``ValueError``. Values that
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- are neither ``none`` nor ``undefined`` are automatically escaped.
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+ **Values** that are neither ``none`` nor ``undefined`` are automatically
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+ escaped, safely allowing untrusted user input.
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+ User input should not be used as **keys** to this filter. If any key
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+ contains a space, ``/`` solidus, ``>`` greater-than sign, or ``=`` equals
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+ sign, this fails with a ``ValueError``. Regardless of this, user input
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+ should never be used as keys to this filter, or must be separately validated
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+ first.
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.. sourcecode:: html+jinja
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@@ -278,6 +285,10 @@ def do_xmlattr(
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As you can see it automatically prepends a space in front of the item
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if the filter returned something unless the second parameter is false.
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+ .. versionchanged:: 3.1.4
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+ Keys with ``/`` solidus, ``>`` greater-than sign, or ``=`` equals sign
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+ are not allowed.
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+
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.. versionchanged:: 3.1.3
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Keys with spaces are not allowed.
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"""
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@@ -287,8 +298,8 @@ def do_xmlattr(
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if value is None or isinstance(value, Undefined):
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continue
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- if _space_re.search(key) is not None:
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- raise ValueError(f"Spaces are not allowed in attributes: '{key}'")
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+ if _attr_key_re.search(key) is not None:
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+ raise ValueError(f"Invalid character in attribute name: {key!r}")
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items.append(f'{escape(key)}="{escape(value)}"')
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diff --git a/Jinja2-3.1.3/tests/test_filters.py b/Jinja2-3.1.3/tests/test_filters.py
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index f50ed13..d8e9114 100644
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--- a/Jinja2-3.1.3/tests/test_filters.py
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+++ b/Jinja2-3.1.3/tests/test_filters.py
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@@ -474,11 +474,12 @@ class TestFilter:
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assert 'bar="23"' in out
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assert 'blub:blub="<?>"' in out
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- def test_xmlattr_key_with_spaces(self, env):
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- with pytest.raises(ValueError, match="Spaces are not allowed"):
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- env.from_string(
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- "{{ {'src=1 onerror=alert(1)': 'my_class'}|xmlattr }}"
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- ).render()
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+ @pytest.mark.parametrize("sep", ("\t", "\n", "\f", " ", "/", ">", "="))
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+ def test_xmlattr_key_invalid(self, env: Environment, sep: str) -> None:
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+ with pytest.raises(ValueError, match="Invalid character"):
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+ env.from_string("{{ {key: 'my_class'}|xmlattr }}").render(
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+ key=f"class{sep}onclick=alert(1)"
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+ )
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def test_sort1(self, env):
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tmpl = env.from_string("{{ [2, 3, 1]|sort }}|{{ [2, 3, 1]|sort(true) }}")
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--
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2.27.0
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@ -2,7 +2,7 @@
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Name: python-jinja2
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Name: python-jinja2
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Version: 3.1.3
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Version: 3.1.3
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Release: 1
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Release: 2
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Summary: A full-featured template engine for Python
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Summary: A full-featured template engine for Python
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License: BSD-3-Clause
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License: BSD-3-Clause
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URL: http://jinja.pocoo.org/
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URL: http://jinja.pocoo.org/
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@ -10,6 +10,8 @@ Source0: https://files.pythonhosted.org/packages/source/J/Jinja2/Jinja2-%
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BuildArch: noarch
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BuildArch: noarch
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Patch0001: 0001-disallow-invalid-characters-in-keys-to-xmlattr-filte.patch
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%description
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%description
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Jinja2 is one of the most used template engines for Python. It is inspired by Django's
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Jinja2 is one of the most used template engines for Python. It is inspired by Django's
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templating system but extends it with an expressive language that gives template authors
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templating system but extends it with an expressive language that gives template authors
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@ -62,6 +64,12 @@ popd
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%doc Jinja2-%{version}/examples
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%doc Jinja2-%{version}/examples
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%changelog
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%changelog
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* Tue May 7 2024 xuchenchen <xuchenchen@kylinos.cn> - 3.1.3-2
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- Type: CVE
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- CVE: CVE-2024-34064
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- SUG: NA
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- DESC: fix disallow invalid characters in keys to xmlattr filter
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* Thu Jan 25 2024 shixuantong <shixuantong1@huawei.com> - 3.1.3-1
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* Thu Jan 25 2024 shixuantong <shixuantong1@huawei.com> - 3.1.3-1
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- Upgrade package to 3.1.3
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- Upgrade package to 3.1.3
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