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Fix bsc#1257041 (CVE-2025-15367)

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Add CVE-2025-15367-poplib-ctrl-chars.patch fixing bsc#1257041
(CVE-2025-15367) using gh#python/cpython!143924 and doing basically the
same as the previous patch for poplib library.
This commit is contained in:
Matej Cepl
2026-02-05 22:07:26 +01:00
parent ef26610071
commit 3440c074a6
3 changed files with 54 additions and 0 deletions
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48
CVE-2025-15367-poplib-ctrl-chars.patch Normal file
View File

@@ -0,0 +1,48 @@
From b6f733b285b1c4f27dacb5c2e1f292c914e8b933 Mon Sep 17 00:00:00 2001
From: Seth Michael Larson <seth@python.org>
Date: Fri, 16 Jan 2026 10:54:09 -0600
Subject: [PATCH 1/2] Add 'test.support' fixture for C0 control characters
---
Lib/poplib.py | 2 ++
Lib/test/test_poplib.py | 7 +++++++
Misc/NEWS.d/next/Security/2026-01-16-11-43-47.gh-issue-143923.DuytMe.rst | 1 +
3 files changed, 10 insertions(+)
Index: Python-3.13.11/Lib/poplib.py
===================================================================
--- Python-3.13.11.orig/Lib/poplib.py 2025-12-05 17:06:33.000000000 +0100
+++ Python-3.13.11/Lib/poplib.py 2026-02-05 22:06:33.769936918 +0100
@@ -122,6 +122,8 @@
def _putcmd(self, line):
if self._debugging: print('*cmd*', repr(line))
line = bytes(line, self.encoding)
+ if re.search(b'[\x00-\x1F\x7F]', line):
+ raise ValueError('Control characters not allowed in commands')
self._putline(line)
Index: Python-3.13.11/Lib/test/test_poplib.py
===================================================================
--- Python-3.13.11.orig/Lib/test/test_poplib.py 2025-12-05 17:06:33.000000000 +0100
+++ Python-3.13.11/Lib/test/test_poplib.py 2026-02-05 22:06:33.770193070 +0100
@@ -396,6 +396,13 @@
self.assertIsNone(self.client.sock)
self.assertIsNone(self.client.file)
+ def test_control_characters(self):
+ for c0 in control_characters_c0():
+ with self.assertRaises(ValueError):
+ self.client.user(f'user{c0}')
+ with self.assertRaises(ValueError):
+ self.client.pass_(f'{c0}pass')
+
@requires_ssl
def test_stls_capa(self):
capa = self.client.capa()
Index: Python-3.13.11/Misc/NEWS.d/next/Security/2026-01-16-11-43-47.gh-issue-143923.DuytMe.rst
===================================================================
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
+++ Python-3.13.11/Misc/NEWS.d/next/Security/2026-01-16-11-43-47.gh-issue-143923.DuytMe.rst 2026-02-05 22:06:33.770449444 +0100
@@ -0,0 +1 @@
+Reject control characters in POP3 commands.

3
python313.changes
View File

@@ -8,6 +8,9 @@ Thu Feb 5 18:57:27 UTC 2026 - Matej Cepl <mcepl@cepl.eu>
- Add CVE-2025-15366-imap-ctrl-chars.patch fixing bsc#1257044
(CVE-2025-15366) using gh#python/cpython!143922 and doing
basically the same as the previous patch for IMAP protocol.
- Add CVE-2025-15367-poplib-ctrl-chars.patch fixing bsc#1257041
(CVE-2025-15367) using gh#python/cpython!143924 and doing
basically the same as the previous patch for poplib library.
-------------------------------------------------------------------
Tue Jan 27 16:31:12 UTC 2026 - Matej Cepl <mcepl@cepl.eu>

3
python313.spec
View File

@@ -254,6 +254,9 @@ Patch52: CVE-2026-0865-wsgiref-ctrl-chars.patch
# PATCH-FIX-UPSTREAM CVE-2025-15366-imap-ctrl-chars.patch bsc#1257044 mcepl@suse.com
# Reject control characters in wsgiref.headers.Headers
Patch53: CVE-2025-15366-imap-ctrl-chars.patch
# PATCH-FIX-UPSTREAM CVE-2025-15367-poplib-ctrl-chars.patch bsc#1257041 mcepl@suse.com
# Reject control characters in poplib
Patch54: CVE-2025-15367-poplib-ctrl-chars.patch
#### END OF PATCHES
BuildRequires: autoconf-archive
BuildRequires: automake