diff options
Diffstat (limited to 'meta/recipes-devtools/python/files/CVE-2022-45061.patch')
| -rw-r--r-- | meta/recipes-devtools/python/files/CVE-2022-45061.patch | 100 |
1 files changed, 0 insertions, 100 deletions
diff --git a/meta/recipes-devtools/python/files/CVE-2022-45061.patch b/meta/recipes-devtools/python/files/CVE-2022-45061.patch deleted file mode 100644 index 647bf59908..0000000000 --- a/meta/recipes-devtools/python/files/CVE-2022-45061.patch +++ /dev/null @@ -1,100 +0,0 @@ -From 064ec20bf7a181ba5fa961aaa12973812aa6ca5d Mon Sep 17 00:00:00 2001 -From: "Miss Islington (bot)" - <31488909+miss-islington@users.noreply.github.com> -Date: Mon, 7 Nov 2022 18:57:10 -0800 -Subject: [PATCH] [3.11] gh-98433: Fix quadratic time idna decoding. (GH-99092) - (GH-99222) - -There was an unnecessary quadratic loop in idna decoding. This restores -the behavior to linear. - -(cherry picked from commit d315722564927c7202dd6e111dc79eaf14240b0d) - -(cherry picked from commit a6f6c3a3d6f2b580f2d87885c9b8a9350ad7bf15) - -Co-authored-by: Miss Islington (bot) <31488909+miss-islington@users.noreply.github.com> -Co-authored-by: Gregory P. Smith <greg@krypto.org> - -CVE: CVE-2022-45061 -Upstream-Status: Backport [https://github.com/python/cpython/pull/99231/commits/064ec20bf7a181ba5fa961aaa12973812aa6ca5d] -Signed-off-by: Omkar Patil <Omkar.Patil@kpit.com> - ---- - Lib/encodings/idna.py | 32 +++++++++---------- - Lib/test/test_codecs.py | 6 ++++ - ...2-11-04-09-29-36.gh-issue-98433.l76c5G.rst | 6 ++++ - 3 files changed, 27 insertions(+), 17 deletions(-) - create mode 100644 Misc/NEWS.d/next/Security/2022-11-04-09-29-36.gh-issue-98433.l76c5G.rst - -diff --git a/Lib/encodings/idna.py b/Lib/encodings/idna.py -index ea4058512fe3..bf98f513366b 100644 ---- a/Lib/encodings/idna.py -+++ b/Lib/encodings/idna.py -@@ -39,23 +39,21 @@ def nameprep(label): - - # Check bidi - RandAL = [stringprep.in_table_d1(x) for x in label] -- for c in RandAL: -- if c: -- # There is a RandAL char in the string. Must perform further -- # tests: -- # 1) The characters in section 5.8 MUST be prohibited. -- # This is table C.8, which was already checked -- # 2) If a string contains any RandALCat character, the string -- # MUST NOT contain any LCat character. -- if any(stringprep.in_table_d2(x) for x in label): -- raise UnicodeError("Violation of BIDI requirement 2") -- -- # 3) If a string contains any RandALCat character, a -- # RandALCat character MUST be the first character of the -- # string, and a RandALCat character MUST be the last -- # character of the string. -- if not RandAL[0] or not RandAL[-1]: -- raise UnicodeError("Violation of BIDI requirement 3") -+ if any(RandAL): -+ # There is a RandAL char in the string. Must perform further -+ # tests: -+ # 1) The characters in section 5.8 MUST be prohibited. -+ # This is table C.8, which was already checked -+ # 2) If a string contains any RandALCat character, the string -+ # MUST NOT contain any LCat character. -+ if any(stringprep.in_table_d2(x) for x in label): -+ raise UnicodeError("Violation of BIDI requirement 2") -+ # 3) If a string contains any RandALCat character, a -+ # RandALCat character MUST be the first character of the -+ # string, and a RandALCat character MUST be the last -+ # character of the string. -+ if not RandAL[0] or not RandAL[-1]: -+ raise UnicodeError("Violation of BIDI requirement 3") - - return label - -diff --git a/Lib/test/test_codecs.py b/Lib/test/test_codecs.py -index d1faf0126c1e..37ade7d80d02 100644 ---- a/Lib/test/test_codecs.py -+++ b/Lib/test/test_codecs.py -@@ -1532,6 +1532,12 @@ def test_builtin_encode(self): - self.assertEqual("pyth\xf6n.org".encode("idna"), b"xn--pythn-mua.org") - self.assertEqual("pyth\xf6n.org.".encode("idna"), b"xn--pythn-mua.org.") - -+ def test_builtin_decode_length_limit(self): -+ with self.assertRaisesRegex(UnicodeError, "too long"): -+ (b"xn--016c"+b"a"*1100).decode("idna") -+ with self.assertRaisesRegex(UnicodeError, "too long"): -+ (b"xn--016c"+b"a"*70).decode("idna") -+ - def test_stream(self): - r = codecs.getreader("idna")(io.BytesIO(b"abc")) - r.read(3) -diff --git a/Misc/NEWS.d/next/Security/2022-11-04-09-29-36.gh-issue-98433.l76c5G.rst b/Misc/NEWS.d/next/Security/2022-11-04-09-29-36.gh-issue-98433.l76c5G.rst -new file mode 100644 -index 000000000000..5185fac2e29d ---- /dev/null -+++ b/Misc/NEWS.d/next/Security/2022-11-04-09-29-36.gh-issue-98433.l76c5G.rst -@@ -0,0 +1,6 @@ -+The IDNA codec decoder used on DNS hostnames by :mod:`socket` or :mod:`asyncio` -+related name resolution functions no longer involves a quadratic algorithm. -+This prevents a potential CPU denial of service if an out-of-spec excessive -+length hostname involving bidirectional characters were decoded. Some protocols -+such as :mod:`urllib` http ``3xx`` redirects potentially allow for an attacker -+to supply such a name. |