diff options
Diffstat (limited to 'python/python3-pywayland/CVE_2007_4559.patch')
| -rw-r--r-- | python/python3-pywayland/CVE_2007_4559.patch | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/python/python3-pywayland/CVE_2007_4559.patch b/python/python3-pywayland/CVE_2007_4559.patch new file mode 100644 index 0000000000..437747cecb --- /dev/null +++ b/python/python3-pywayland/CVE_2007_4559.patch @@ -0,0 +1,38 @@ +This patch was taken from upstream pywayland 0.4.15: +https://github.com/flacjacket/pywayland/pull/42 +--- a/doc/protocol_build.py 2022-07-24 11:03:10.000000000 -0700 ++++ b/doc/protocol_build.py 2022-12-20 20:00:48.659884422 -0800 +@@ -14,6 +14,24 @@ + ) + ) + ++def _is_within_directory(directory, target): ++ """Helper to check for CVE-2007-4559""" ++ abs_directory = os.path.abspath(directory) ++ abs_target = os.path.abspath(target) ++ ++ prefix = os.path.commonprefix([abs_directory, abs_target]) ++ ++ return prefix == abs_directory ++ ++ ++def _safe_extractall(tar, path=".", members=None, *, numeric_owner=False): ++ """Helper to check for CVE-2007-4559""" ++ for member in tar.getmembers(): ++ member_path = os.path.join(path, member.name) ++ if not is_within_directory(path, member_path): ++ raise Exception("Attempted Path Traversal in Tar File") ++ ++ tar.extractall(path, members, numeric_owner=numeric_owner) + + def protocols_build(output_dir): + from pywayland.scanner import Protocol +@@ -26,7 +44,7 @@ + protocol_dest = "wayland-protocols-{}".format(protocols_version) + urllib.request.urlretrieve(protocols_source, protocol_dest + ".tar.xz") + with tarfile.open(protocol_dest + ".tar.xz") as f: +- f.extractall() ++ _safe_extractall(f) + + # walk the directory and generate all the protocols + protocol_files = [wayland_file] + sorted( |