Your message dated Sat, 12 Sep 2026 08:05:41 +0000
with message-id <[email protected]>
and subject line Released in 13.7
has caused the Debian Bug report #1141607,
regarding trixie-pu: package patool/4.0.0-1+deb13u1
to be marked as done.
This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.
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--
1141607: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1141607
Debian Bug Tracking System
Contact [email protected] with problems
--- Begin Message ---
Package: release.debian.org
Severity: normal
Tags: trixie
X-Debbugs-Cc: [email protected]
Control: affects -1 + src:patool
User: [email protected]
Usertags: pu
Dear stable release managers, please consider patool/4.0.0-1+deb13u1
for trixie.
[ Reason ]
CVE-2026-29509 reported against patool.
[ Impact ]
CVE-2026-29509 is a path traversal vulnerability. Exposing users to
such vulnerability is not trivial.
[ Tests ]
Package contain extensive testsuite which ran successfully.
[ Risks ]
The security fix patch backported from the upstream version 4.0.5 and
merged with minimal fuzz.
[ Checklist ]
[x] *all* changes are documented in the d/changelog
[x] I reviewed all changes and I approve them
[x] attach debdiff against the package in (old)stable
[x] the issue is verified as fixed in unstable
--abhijith
diff -Nru patool-4.0.0/debian/changelog patool-4.0.0/debian/changelog
--- patool-4.0.0/debian/changelog 2025-03-21 11:12:05.000000000 +0530
+++ patool-4.0.0/debian/changelog 2026-07-07 11:38:59.000000000 +0530
@@ -1,3 +1,10 @@
+patool (4.0.0-1+deb13u1) trixie; urgency=medium
+
+ * Fix CVE-2026-29509: a path traversal vulnerability in the
+ safe_extract() function. d/patches/CVE-2026-29509.patch
+
+ -- Abhijith PA <[email protected]> Tue, 07 Jul 2026 11:38:59 +0530
+
patool (4.0.0-1) unstable; urgency=medium
* New upstream release.
diff -Nru patool-4.0.0/debian/patches/CVE-2026-29509.patch
patool-4.0.0/debian/patches/CVE-2026-29509.patch
--- patool-4.0.0/debian/patches/CVE-2026-29509.patch 1970-01-01
05:30:00.000000000 +0530
+++ patool-4.0.0/debian/patches/CVE-2026-29509.patch 2026-07-07
11:38:39.000000000 +0530
@@ -0,0 +1,78 @@
+From e5660a4b0a4b2c4202889bf8700a375cbb6ee78b Mon Sep 17 00:00:00 2001
+From: Bastian Kleineidam <[email protected]>
+Date: Mon, 18 May 2026 10:54:58 +0200
+Subject: [PATCH] Fix generation of files and directories outside of the
+ extraction dir
+
+---
+ patoolib/fileutil.py | 10 ++++++++++
+ patoolib/programs/py_tarfile.py | 12 ++----------
+ tests/test_fileutil.py | 9 +++++++++
+ 4 files changed, 26 insertions(+), 12 deletions(-)
+
+--- a/patoolib/fileutil.py
++++ b/patoolib/fileutil.py
+@@ -193,3 +193,13 @@ def make_user_readable(directory: str) -
+ make_file_readable(os.path.join(root, filename))
+ for dirname in dirs:
+ make_dir_readable(os.path.join(root, dirname))
++
++
++def is_within_directory(directory, target):
++ """Check that given target path is a subdirectory inside the directory."""
++ abs_directory = os.path.realpath(os.path.abspath(directory))
++ abs_target = os.path.realpath(os.path.abspath(target))
++ try:
++ return os.path.commonpath([abs_directory, abs_target]) ==
abs_directory
++ except ValueError:
++ return False
+--- a/patoolib/programs/py_tarfile.py
++++ b/patoolib/programs/py_tarfile.py
+@@ -14,7 +14,7 @@
+ # along with this program. If not, see <http://www.gnu.org/licenses/>.
+ """Archive commands for the tarfile Python module."""
+
+-from .. import util
++from .. import util, fileutil
+ import os
+ import sys
+ import tarfile
+@@ -46,14 +46,6 @@ def extract_tar(archive, compression, cm
+ return None
+
+
+-def is_within_directory(directory, target):
+- """Check that given target path is a subdirectory inside the directory."""
+- 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_extract(tfile, path):
+ """Helper function to ensure that TAR members will be extracted inside
+ the given path.
+@@ -63,7 +55,7 @@ def safe_extract(tfile, path):
+ bad_members = []
+ for member in tfile.getmembers():
+ member_path = os.path.join(path, member.name)
+- if is_within_directory(path, member_path):
++ if fileutil.is_within_directory(path, member_path):
+ safe_members.append(member)
+ else:
+ bad_members.append(member)
+--- a/tests/test_fileutil.py
++++ b/tests/test_fileutil.py
+@@ -63,3 +63,12 @@ class UtilTest(unittest.TestCase):
+ f.write("42")
+ fileutil.rmtree(existing_dir)
+ self.assertFalse(os.path.exists(existing_dir))
++
++ def test_is_within_directory(self):
++ """Test is_within_directory()"""
++ curdir = os.getcwd()
++ dest = os.path.join(curdir, "outputdir")
++ member = os.path.join("outputdir2", "test.txt")
++ self.assertFalse(fileutil.is_within_directory(dest, member))
++ member = os.path.join("outputdir", "test.txt")
++ self.assertTrue(fileutil.is_within_directory(dest, member))
diff -Nru patool-4.0.0/debian/patches/series patool-4.0.0/debian/patches/series
--- patool-4.0.0/debian/patches/series 2024-11-12 14:04:06.000000000 +0530
+++ patool-4.0.0/debian/patches/series 2026-07-07 11:38:31.000000000 +0530
@@ -0,0 +1 @@
+CVE-2026-29509.patch
--- End Message ---
--- Begin Message ---
Version: 13.7
This update was released as part of 13.7.
--- End Message ---
