diff --git a/SOURCES/00360-CVE-2021-3426.patch b/SOURCES/00360-CVE-2021-3426.patch new file mode 100644 index 0000000..f24ef59 --- /dev/null +++ b/SOURCES/00360-CVE-2021-3426.patch @@ -0,0 +1,101 @@ +From 5b1e50256b6532667b6d31debc350f6c7d3f30aa Mon Sep 17 00:00:00 2001 +From: "Miss Islington (bot)" + <31488909+miss-islington@users.noreply.github.com> +Date: Mon, 29 Mar 2021 08:40:53 -0700 +Subject: [PATCH] bpo-42988: Remove the pydoc getfile feature (GH-25015) + (GH-25067) +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +CVE-2021-3426: Remove the "getfile" feature of the pydoc module which +could be abused to read arbitrary files on the disk (directory +traversal vulnerability). Moreover, even source code of Python +modules can contain sensitive data like passwords. Vulnerability +reported by David Schwörer. +(cherry picked from commit 9b999479c0022edfc9835a8a1f06e046f3881048) + +Co-authored-by: Victor Stinner +--- + Lib/pydoc.py | 18 ------------------ + Lib/test/test_pydoc.py | 6 ------ + .../2021-03-24-14-16-56.bpo-42988.P2aNco.rst | 4 ++++ + 3 files changed, 4 insertions(+), 24 deletions(-) + create mode 100644 Misc/NEWS.d/next/Security/2021-03-24-14-16-56.bpo-42988.P2aNco.rst + +diff --git a/Lib/pydoc.py b/Lib/pydoc.py +index b521a5504728c4..5247ef9ea27aa1 100644 +--- a/Lib/pydoc.py ++++ b/Lib/pydoc.py +@@ -2312,9 +2312,6 @@ def page(self, title, contents): + %s%s

+ ''' % (title, css_link, html_navbar(), contents) + +- def filelink(self, url, path): +- return '%s' % (url, path) +- + + html = _HTMLDoc() + +@@ -2400,19 +2397,6 @@ def bltinlink(name): + 'key = %s' % key, '#ffffff', '#ee77aa', '
'.join(results)) + return 'Search Results', contents + +- def html_getfile(path): +- """Get and display a source file listing safely.""" +- path = urllib.parse.unquote(path) +- with tokenize.open(path) as fp: +- lines = html.escape(fp.read()) +- body = '

%s

' % lines +- heading = html.heading( +- 'File Listing', +- '#ffffff', '#7799ee') +- contents = heading + html.bigsection( +- 'File: %s' % path, '#ffffff', '#ee77aa', body) +- return 'getfile %s' % path, contents +- + def html_topics(): + """Index of topic texts available.""" + +@@ -2504,8 +2488,6 @@ def get_html_page(url): + op, _, url = url.partition('=') + if op == "search?key": + title, content = html_search(url) +- elif op == "getfile?key": +- title, content = html_getfile(url) + elif op == "topic?key": + # try topics first, then objects. + try: +diff --git a/Lib/test/test_pydoc.py b/Lib/test/test_pydoc.py +index 00803d3305cb53..49bc3eb164b19c 100644 +--- a/Lib/test/test_pydoc.py ++++ b/Lib/test/test_pydoc.py +@@ -1052,18 +1052,12 @@ def test_url_requests(self): + ("topic?key=def", "Pydoc: KEYWORD def"), + ("topic?key=STRINGS", "Pydoc: TOPIC STRINGS"), + ("foobar", "Pydoc: Error - foobar"), +- ("getfile?key=foobar", "Pydoc: Error - getfile?key=foobar"), + ] + + with self.restrict_walk_packages(): + for url, title in requests: + self.call_url_handler(url, title) + +- path = string.__file__ +- title = "Pydoc: getfile " + path +- url = "getfile?key=" + path +- self.call_url_handler(url, title) +- + + class TestHelper(unittest.TestCase): + def test_keywords(self): +diff --git a/Misc/NEWS.d/next/Security/2021-03-24-14-16-56.bpo-42988.P2aNco.rst b/Misc/NEWS.d/next/Security/2021-03-24-14-16-56.bpo-42988.P2aNco.rst +new file mode 100644 +index 00000000000000..4b42dd05305a83 +--- /dev/null ++++ b/Misc/NEWS.d/next/Security/2021-03-24-14-16-56.bpo-42988.P2aNco.rst +@@ -0,0 +1,4 @@ ++CVE-2021-3426: Remove the ``getfile`` feature of the :mod:`pydoc` module which ++could be abused to read arbitrary files on the disk (directory traversal ++vulnerability). Moreover, even source code of Python modules can contain ++sensitive data like passwords. Vulnerability reported by David Schwörer. diff --git a/SPECS/python3.spec b/SPECS/python3.spec index 1f4699d..c2e843b 100644 --- a/SPECS/python3.spec +++ b/SPECS/python3.spec @@ -14,7 +14,7 @@ URL: https://www.python.org/ # WARNING When rebasing to a new Python version, # remember to update the python3-docs package as well Version: %{pybasever}.8 -Release: 37%{?dist} +Release: 38%{?dist} License: Python @@ -591,6 +591,12 @@ Patch357: 00357-CVE-2021-3177.patch # Main BZ: https://bugzilla.redhat.com/show_bug.cgi?id=1928904 Patch359: 00359-CVE-2021-23336.patch +# 00360 # +# CVE-2021-3426: information disclosure via pydoc +# Upstream: https://bugs.python.org/issue42988 +# Main BZ: https://bugzilla.redhat.com/show_bug.cgi?id=1935913 +Patch360: 00360-CVE-2021-3426.patch + # (New patches go here ^^^) # # When adding new patches to "python" and "python3" in Fedora, EL, etc., @@ -918,6 +924,7 @@ git apply %{PATCH351} %patch356 -p1 %patch357 -p1 %patch359 -p1 +%patch360 -p1 # Remove files that should be generated by the build # (This is after patching, so that we can use patches directly from upstream) @@ -1843,6 +1850,10 @@ fi # ====================================================== %changelog +* Fri Apr 30 2021 Charalampos Stratakis - 3.6.8-38 +- Security fix for CVE-2021-3426: information disclosure via pydoc +Resolves: rhbz#1935913 + * Thu Mar 04 2021 Petr Viktorin - 3.6.8-37 - Fix for CVE-2021-23336 Resolves: rhbz#1928904