- move fixing patch for CVE-2020-8492 to the right location Signed-off-by: Andrej Valek <[email protected]> --- ...VE-2020-8492-Fix-AbstractBasicAuthHandler.patch | 0 .../python/python3/CVE-2019-20907.patch | 73 ++++++++++++++++++++++ meta/recipes-devtools/python/python3_3.8.2.bb | 1 + 3 files changed, 74 insertions(+) rename meta/recipes-devtools/python/{files => python3}/0001-bpo-39503-CVE-2020-8492-Fix-AbstractBasicAuthHandler.patch (100%) create mode 100644 meta/recipes-devtools/python/python3/CVE-2019-20907.patch
diff --git a/meta/recipes-devtools/python/files/0001-bpo-39503-CVE-2020-8492-Fix-AbstractBasicAuthHandler.patch b/meta/recipes-devtools/python/python3/0001-bpo-39503-CVE-2020-8492-Fix-AbstractBasicAuthHandler.patch similarity index 100% rename from meta/recipes-devtools/python/files/0001-bpo-39503-CVE-2020-8492-Fix-AbstractBasicAuthHandler.patch rename to meta/recipes-devtools/python/python3/0001-bpo-39503-CVE-2020-8492-Fix-AbstractBasicAuthHandler.patch diff --git a/meta/recipes-devtools/python/python3/CVE-2019-20907.patch b/meta/recipes-devtools/python/python3/CVE-2019-20907.patch new file mode 100644 index 0000000000..135196f964 --- /dev/null +++ b/meta/recipes-devtools/python/python3/CVE-2019-20907.patch @@ -0,0 +1,73 @@ +From a06a6bf4e67a50561f6d6fb33534df1d3035ea34 Mon Sep 17 00:00:00 2001 +From: Rishi <[email protected]> +Date: Wed, 15 Jul 2020 13:51:00 +0200 +Subject: [PATCH] bpo-39017: Avoid infinite loop in the tarfile module + (GH-21454) + +Avoid infinite loop when reading specially crafted TAR files using the tarfile module +(CVE-2019-20907). +(cherry picked from commit 5a8d121a1f3ef5ad7c105ee378cc79a3eac0c7d4) + +Co-authored-by: Rishi <[email protected]> + +Upstream-Status: Backport [https://github.com/python/cpython/commit/c55479556db015f48fc8bbca17f64d3e65598559] +CVE: CVE-2019-20907 +Signed-off-by: Andrej Valek <[email protected]> +--- + Lib/tarfile.py | 2 ++ + Lib/test/recursion.tar | Bin 0 -> 516 bytes + Lib/test/test_tarfile.py | 7 +++++++ + .../2020-07-12-22-16-58.bpo-39017.x3Cg-9.rst | 1 + + 4 files changed, 10 insertions(+) + create mode 100644 Lib/test/recursion.tar + create mode 100644 Misc/NEWS.d/next/Library/2020-07-12-22-16-58.bpo-39017.x3Cg-9.rst + +diff --git a/Lib/tarfile.py b/Lib/tarfile.py +index d31b9cbb51d65..7a69e1b1aa544 100755 +--- a/Lib/tarfile.py ++++ b/Lib/tarfile.py +@@ -1241,6 +1241,8 @@ def _proc_pax(self, tarfile): + + length, keyword = match.groups() + length = int(length) ++ if length == 0: ++ raise InvalidHeaderError("invalid header") + value = buf[match.end(2) + 1:match.start(1) + length - 1] + + # Normally, we could just use "utf-8" as the encoding and "strict" +diff --git a/Lib/test/recursion.tar b/Lib/test/recursion.tar +new file mode 100644 +index 0000000000000000000000000000000000000000..b8237251964983f54ed1966297e887636cd0c5f4 +GIT binary patch +literal 516 +zcmYdFPRz+kEn=W0Fn}74P8%Xw3X=l~85kIuo0>8xq$A1Gm}!7)KUsFc41m#O8A5+e +I1_}|j06>QaCIA2c + +literal 0 +HcmV?d00001 + +diff --git a/Lib/test/test_tarfile.py b/Lib/test/test_tarfile.py +index 15324a4e48819..b512168d6ea87 100644 +--- a/Lib/test/test_tarfile.py ++++ b/Lib/test/test_tarfile.py +@@ -397,6 +397,13 @@ def test_premature_end_of_archive(self): + with self.assertRaisesRegex(tarfile.ReadError, "unexpected end of data"): + tar.extractfile(t).read() + ++ def test_length_zero_header(self): ++ # bpo-39017 (CVE-2019-20907): reading a zero-length header should fail ++ # with an exception ++ with self.assertRaisesRegex(tarfile.ReadError, "file could not be opened successfully"): ++ with tarfile.open(support.findfile('recursion.tar')) as tar: ++ pass ++ + class MiscReadTestBase(CommonReadTest): + def requires_name_attribute(self): + pass +diff --git a/Misc/NEWS.d/next/Library/2020-07-12-22-16-58.bpo-39017.x3Cg-9.rst b/Misc/NEWS.d/next/Library/2020-07-12-22-16-58.bpo-39017.x3Cg-9.rst +new file mode 100644 +index 0000000000000..ad26676f8b856 +--- /dev/null ++++ b/Misc/NEWS.d/next/Library/2020-07-12-22-16-58.bpo-39017.x3Cg-9.rst +@@ -0,0 +1 @@ ++Avoid infinite loop when reading specially crafted TAR files using the tarfile module (CVE-2019-20907). diff --git a/meta/recipes-devtools/python/python3_3.8.2.bb b/meta/recipes-devtools/python/python3_3.8.2.bb index b4cce88e87..9eddad4ad4 100644 --- a/meta/recipes-devtools/python/python3_3.8.2.bb +++ b/meta/recipes-devtools/python/python3_3.8.2.bb @@ -33,6 +33,7 @@ SRC_URI = "http://www.python.org/ftp/python/${PV}/Python-${PV}.tar.xz \ file://0001-python3-Do-not-hardcode-lib-for-distutils.patch \ file://0020-configure.ac-setup.py-do-not-add-a-curses-include-pa.patch \ file://0001-bpo-39503-CVE-2020-8492-Fix-AbstractBasicAuthHandler.patch \ + file://CVE-2019-20907.patch \ file://CVE-2020-14422.patch \ file://CVE-2020-26116.patch \ file://CVE-2020-27619.patch \ -- 2.11.0
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