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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2021.2904 rh-python38 security, bug fix, and enhancement update 27 August 2021 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: rh-python38 Publisher: Red Hat Operating System: Red Hat Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated Denial of Service -- Remote/Unauthenticated Cross-site Scripting -- Remote with User Interaction Access Confidential Data -- Remote/Unauthenticated Unauthorised Access -- Remote/Unauthenticated Reduced Security -- Remote with User Interaction Resolution: Patch/Upgrade CVE Names: CVE-2021-33503 CVE-2021-29921 CVE-2021-28957 CVE-2021-23336 CVE-2021-20095 CVE-2021-3572 CVE-2021-3426 CVE-2021-3177 CVE-2020-36242 CVE-2020-28493 CVE-2020-27783 CVE-2020-27619 CVE-2020-25659 Reference: ESB-2021.2711 ESB-2021.2232 ESB-2021.2160 Original Bulletin: https://access.redhat.com/errata/RHSA-2021:3254 - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ===================================================================== Red Hat Security Advisory Synopsis: Moderate: rh-python38 security, bug fix, and enhancement update Advisory ID: RHSA-2021:3254-01 Product: Red Hat Software Collections Advisory URL: https://access.redhat.com/errata/RHSA-2021:3254 Issue date: 2021-08-24 CVE Names: CVE-2020-25659 CVE-2020-27619 CVE-2020-27783 CVE-2020-28493 CVE-2020-36242 CVE-2021-3177 CVE-2021-3426 CVE-2021-3572 CVE-2021-20095 CVE-2021-23336 CVE-2021-28957 CVE-2021-29921 CVE-2021-33503 ===================================================================== 1. Summary: An update for rh-python38-babel, rh-python38-python, rh-python38-python-cryptography, rh-python38-python-jinja2, rh-python38-python-lxml, rh-python38-python-pip, and rh-python38-python-urllib3 is now available for Red Hat Software Collections. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. 2. Relevant releases/architectures: Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7) - noarch, ppc64le, s390x, x86_64 Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.7) - noarch, ppc64le, s390x, x86_64 Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 7) - noarch, x86_64 3. Description: Python is an interpreted, interactive, object-oriented programming language, which includes modules, classes, exceptions, very high level dynamic data types and dynamic typing. Python supports interfaces to many system calls and libraries, as well as to various windowing systems. The following packages have been upgraded to a later upstream version: rh-python38-python (3.8.11). (BZ#1969523) Security Fix(es): * python-cryptography: Bleichenbacher timing oracle attack against RSA decryption (CVE-2020-25659) * python: Unsafe use of eval() on data retrieved via HTTP in the test suite (CVE-2020-27619) * python-lxml: mXSS due to the use of improper parser (CVE-2020-27783) * python-jinja2: ReDoS vulnerability due to the sub-pattern (CVE-2020-28493) * python-cryptography: Large inputs for symmetric encryption can trigger integer overflow leading to buffer overflow (CVE-2020-36242) * python: Stack-based buffer overflow in PyCArg_repr in _ctypes/callproc.c (CVE-2021-3177) * python: Information disclosure via pydoc (CVE-2021-3426) * python-babel: Relative path traversal allows attacker to load arbitrary locale files and execute arbitrary code (CVE-2021-20095) * python: Web cache poisoning via urllib.parse.parse_qsl and urllib.parse.parse_qs by using a semicolon in query parameters (CVE-2021-23336) * python-lxml: Missing input sanitization for formaction HTML5 attributes may lead to XSS (CVE-2021-28957) * python-ipaddress: Improper input validation of octal strings (CVE-2021-29921) * python-urllib3: ReDoS in the parsing of authority part of URL (CVE-2021-33503) * python-pip: Incorrect handling of unicode separators in git references (CVE-2021-3572) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. Additional information * Changes in the default separator for the Python urllib parsing functions To mitigate the Web Cache Poisoning CVE-2021-23336 in the Python urllib library, the default separator for the urllib.parse.parse_qsl and urllib.parse.parse_qs functions is being changed from both ampersand (&) and semicolon (;) to only an ampersand. The change of the default separator is potentially backwards incompatible, therefore Red Hat provides a way to configure the behavior in Python packages where the default separator has been changed. In addition, the affected urllib parsing functions issue a warning if they detect that a customerâ\x{128}\x{153}s application has been affected by the change. For more information, see the Knowledgebase article "Mitigation of Web Cache Poisoning in the Python urllib library (CVE-2021-23336)" linked from the References section. * The Python "ipaddress" module no longer allows leading zeros in IPv4 addresses To mitigate CVE-2021-29921, the Python "ipaddress" module now rejects IPv4 addresses with leading zeros with an "AddressValueError: Leading zeros are not permitted" error. Customers who rely on the previous behavior can pre-process their IPv4 address inputs to strip the leading zeros off. For details, see the Red Hat Software Collections 3.7 Release Notes. 4. Solution: For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 5. Bugs fixed (https://bugzilla.redhat.com/): 1889886 - CVE-2020-27619 python: Unsafe use of eval() on data retrieved via HTTP in the test suite 1889988 - CVE-2020-25659 python-cryptography: Bleichenbacher timing oracle attack against RSA decryption 1901633 - CVE-2020-27783 python-lxml: mXSS due to the use of improper parser 1918168 - CVE-2021-3177 python: Stack-based buffer overflow in PyCArg_repr in _ctypes/callproc.c 1926226 - CVE-2020-36242 python-cryptography: Large inputs for symmetric encryption can trigger integer overflow leading to buffer overflow 1928707 - CVE-2020-28493 python-jinja2: ReDoS vulnerability due to the sub-pattern 1928904 - CVE-2021-23336 python: Web cache poisoning via urllib.parse.parse_qsl and urllib.parse.parse_qs by using a semicolon in query parameters 1935913 - CVE-2021-3426 python: Information disclosure via pydoc 1941534 - CVE-2021-28957 python-lxml: Missing input sanitization for formaction HTML5 attributes may lead to XSS 1955615 - CVE-2021-20095 python-babel: Relative path traversal allows attacker to load arbitrary locale files and execute arbitrary code 1957458 - CVE-2021-29921 python-ipaddress: Improper input validation of octal strings 1962856 - CVE-2021-3572 python-pip: Incorrect handling of unicode separators in git references 1968074 - CVE-2021-33503 python-urllib3: ReDoS in the parsing of authority part of URL 1969523 - Update the python interpreter to the latest bugfix release 3.8.10 [rhel-3.7.0.z] 6. Package List: Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7): Source: rh-python38-babel-2.7.0-12.el7.src.rpm rh-python38-python-3.8.11-2.el7.src.rpm rh-python38-python-cryptography-2.8-5.el7.src.rpm rh-python38-python-jinja2-2.10.3-6.el7.src.rpm rh-python38-python-lxml-4.4.1-7.el7.src.rpm rh-python38-python-pip-19.3.1-2.el7.src.rpm rh-python38-python-urllib3-1.25.7-7.el7.src.rpm noarch: rh-python38-python-babel-2.7.0-12.el7.noarch.rpm rh-python38-python-jinja2-2.10.3-6.el7.noarch.rpm rh-python38-python-pip-19.3.1-2.el7.noarch.rpm rh-python38-python-pip-wheel-19.3.1-2.el7.noarch.rpm rh-python38-python-rpm-macros-3.8.11-2.el7.noarch.rpm rh-python38-python-srpm-macros-3.8.11-2.el7.noarch.rpm rh-python38-python-urllib3-1.25.7-7.el7.noarch.rpm ppc64le: rh-python38-python-3.8.11-2.el7.ppc64le.rpm rh-python38-python-cryptography-2.8-5.el7.ppc64le.rpm rh-python38-python-cryptography-debuginfo-2.8-5.el7.ppc64le.rpm rh-python38-python-debug-3.8.11-2.el7.ppc64le.rpm rh-python38-python-debuginfo-3.8.11-2.el7.ppc64le.rpm rh-python38-python-devel-3.8.11-2.el7.ppc64le.rpm rh-python38-python-idle-3.8.11-2.el7.ppc64le.rpm rh-python38-python-libs-3.8.11-2.el7.ppc64le.rpm rh-python38-python-lxml-4.4.1-7.el7.ppc64le.rpm rh-python38-python-lxml-debuginfo-4.4.1-7.el7.ppc64le.rpm rh-python38-python-test-3.8.11-2.el7.ppc64le.rpm rh-python38-python-tkinter-3.8.11-2.el7.ppc64le.rpm s390x: rh-python38-python-3.8.11-2.el7.s390x.rpm rh-python38-python-cryptography-2.8-5.el7.s390x.rpm rh-python38-python-cryptography-debuginfo-2.8-5.el7.s390x.rpm rh-python38-python-debug-3.8.11-2.el7.s390x.rpm rh-python38-python-debuginfo-3.8.11-2.el7.s390x.rpm rh-python38-python-devel-3.8.11-2.el7.s390x.rpm rh-python38-python-idle-3.8.11-2.el7.s390x.rpm rh-python38-python-libs-3.8.11-2.el7.s390x.rpm rh-python38-python-lxml-4.4.1-7.el7.s390x.rpm rh-python38-python-lxml-debuginfo-4.4.1-7.el7.s390x.rpm rh-python38-python-test-3.8.11-2.el7.s390x.rpm rh-python38-python-tkinter-3.8.11-2.el7.s390x.rpm x86_64: rh-python38-python-3.8.11-2.el7.x86_64.rpm rh-python38-python-cryptography-2.8-5.el7.x86_64.rpm rh-python38-python-cryptography-debuginfo-2.8-5.el7.x86_64.rpm rh-python38-python-debug-3.8.11-2.el7.x86_64.rpm rh-python38-python-debuginfo-3.8.11-2.el7.x86_64.rpm rh-python38-python-devel-3.8.11-2.el7.x86_64.rpm rh-python38-python-idle-3.8.11-2.el7.x86_64.rpm rh-python38-python-libs-3.8.11-2.el7.x86_64.rpm rh-python38-python-lxml-4.4.1-7.el7.x86_64.rpm rh-python38-python-lxml-debuginfo-4.4.1-7.el7.x86_64.rpm rh-python38-python-test-3.8.11-2.el7.x86_64.rpm rh-python38-python-tkinter-3.8.11-2.el7.x86_64.rpm Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.7): Source: rh-python38-babel-2.7.0-12.el7.src.rpm rh-python38-python-3.8.11-2.el7.src.rpm rh-python38-python-cryptography-2.8-5.el7.src.rpm rh-python38-python-jinja2-2.10.3-6.el7.src.rpm rh-python38-python-lxml-4.4.1-7.el7.src.rpm rh-python38-python-pip-19.3.1-2.el7.src.rpm rh-python38-python-urllib3-1.25.7-7.el7.src.rpm noarch: rh-python38-python-babel-2.7.0-12.el7.noarch.rpm rh-python38-python-jinja2-2.10.3-6.el7.noarch.rpm rh-python38-python-pip-19.3.1-2.el7.noarch.rpm rh-python38-python-pip-wheel-19.3.1-2.el7.noarch.rpm rh-python38-python-rpm-macros-3.8.11-2.el7.noarch.rpm rh-python38-python-srpm-macros-3.8.11-2.el7.noarch.rpm rh-python38-python-urllib3-1.25.7-7.el7.noarch.rpm ppc64le: rh-python38-python-3.8.11-2.el7.ppc64le.rpm rh-python38-python-cryptography-2.8-5.el7.ppc64le.rpm rh-python38-python-cryptography-debuginfo-2.8-5.el7.ppc64le.rpm rh-python38-python-debug-3.8.11-2.el7.ppc64le.rpm rh-python38-python-debuginfo-3.8.11-2.el7.ppc64le.rpm rh-python38-python-devel-3.8.11-2.el7.ppc64le.rpm rh-python38-python-idle-3.8.11-2.el7.ppc64le.rpm rh-python38-python-libs-3.8.11-2.el7.ppc64le.rpm rh-python38-python-lxml-4.4.1-7.el7.ppc64le.rpm rh-python38-python-lxml-debuginfo-4.4.1-7.el7.ppc64le.rpm rh-python38-python-test-3.8.11-2.el7.ppc64le.rpm rh-python38-python-tkinter-3.8.11-2.el7.ppc64le.rpm s390x: rh-python38-python-3.8.11-2.el7.s390x.rpm rh-python38-python-cryptography-2.8-5.el7.s390x.rpm rh-python38-python-cryptography-debuginfo-2.8-5.el7.s390x.rpm rh-python38-python-debug-3.8.11-2.el7.s390x.rpm rh-python38-python-debuginfo-3.8.11-2.el7.s390x.rpm rh-python38-python-devel-3.8.11-2.el7.s390x.rpm rh-python38-python-idle-3.8.11-2.el7.s390x.rpm rh-python38-python-libs-3.8.11-2.el7.s390x.rpm rh-python38-python-lxml-4.4.1-7.el7.s390x.rpm rh-python38-python-lxml-debuginfo-4.4.1-7.el7.s390x.rpm rh-python38-python-test-3.8.11-2.el7.s390x.rpm rh-python38-python-tkinter-3.8.11-2.el7.s390x.rpm x86_64: rh-python38-python-3.8.11-2.el7.x86_64.rpm rh-python38-python-cryptography-2.8-5.el7.x86_64.rpm rh-python38-python-cryptography-debuginfo-2.8-5.el7.x86_64.rpm rh-python38-python-debug-3.8.11-2.el7.x86_64.rpm rh-python38-python-debuginfo-3.8.11-2.el7.x86_64.rpm rh-python38-python-devel-3.8.11-2.el7.x86_64.rpm rh-python38-python-idle-3.8.11-2.el7.x86_64.rpm rh-python38-python-libs-3.8.11-2.el7.x86_64.rpm rh-python38-python-lxml-4.4.1-7.el7.x86_64.rpm rh-python38-python-lxml-debuginfo-4.4.1-7.el7.x86_64.rpm rh-python38-python-test-3.8.11-2.el7.x86_64.rpm rh-python38-python-tkinter-3.8.11-2.el7.x86_64.rpm Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 7): Source: rh-python38-babel-2.7.0-12.el7.src.rpm rh-python38-python-3.8.11-2.el7.src.rpm rh-python38-python-cryptography-2.8-5.el7.src.rpm rh-python38-python-jinja2-2.10.3-6.el7.src.rpm rh-python38-python-lxml-4.4.1-7.el7.src.rpm rh-python38-python-pip-19.3.1-2.el7.src.rpm rh-python38-python-urllib3-1.25.7-7.el7.src.rpm noarch: rh-python38-python-babel-2.7.0-12.el7.noarch.rpm rh-python38-python-jinja2-2.10.3-6.el7.noarch.rpm rh-python38-python-pip-19.3.1-2.el7.noarch.rpm rh-python38-python-pip-wheel-19.3.1-2.el7.noarch.rpm rh-python38-python-rpm-macros-3.8.11-2.el7.noarch.rpm rh-python38-python-srpm-macros-3.8.11-2.el7.noarch.rpm rh-python38-python-urllib3-1.25.7-7.el7.noarch.rpm x86_64: rh-python38-python-3.8.11-2.el7.x86_64.rpm rh-python38-python-cryptography-2.8-5.el7.x86_64.rpm rh-python38-python-cryptography-debuginfo-2.8-5.el7.x86_64.rpm rh-python38-python-debug-3.8.11-2.el7.x86_64.rpm rh-python38-python-debuginfo-3.8.11-2.el7.x86_64.rpm rh-python38-python-devel-3.8.11-2.el7.x86_64.rpm rh-python38-python-idle-3.8.11-2.el7.x86_64.rpm rh-python38-python-libs-3.8.11-2.el7.x86_64.rpm rh-python38-python-lxml-4.4.1-7.el7.x86_64.rpm rh-python38-python-lxml-debuginfo-4.4.1-7.el7.x86_64.rpm rh-python38-python-test-3.8.11-2.el7.x86_64.rpm rh-python38-python-tkinter-3.8.11-2.el7.x86_64.rpm These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/ 7. References: https://access.redhat.com/security/cve/CVE-2020-25659 https://access.redhat.com/security/cve/CVE-2020-27619 https://access.redhat.com/security/cve/CVE-2020-27783 https://access.redhat.com/security/cve/CVE-2020-28493 https://access.redhat.com/security/cve/CVE-2020-36242 https://access.redhat.com/security/cve/CVE-2021-3177 https://access.redhat.com/security/cve/CVE-2021-3426 https://access.redhat.com/security/cve/CVE-2021-3572 https://access.redhat.com/security/cve/CVE-2021-20095 https://access.redhat.com/security/cve/CVE-2021-23336 https://access.redhat.com/security/cve/CVE-2021-28957 https://access.redhat.com/security/cve/CVE-2021-29921 https://access.redhat.com/security/cve/CVE-2021-33503 https://access.redhat.com/security/updates/classification/#moderate https://access.redhat.com/articles/5860431 https://access.redhat.com/documentation/en-us/red_hat_software_collections/3/html-single/3.7_release_notes/index#sect-RHSCL-Other-notes 8. Contact: The Red Hat security contact is <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/ Copyright 2021 Red Hat, Inc. - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIVAwUBYSe+a9zjgjWX9erEAQh1Sw/9HjKHlUfGe51tPnT1wujxV7H5EhmRLcuo lDSNmc5OF1NwYgMKmgQXiYd8A6mHjtMKfA2f+/30CJN69q0/fcD6CTQte6GpALmg DC55IC3gyuf4HHXQmDsNJV2HsaskjOCvLY+iaQU1CJbPIxn3QY1Z6TRXKJ3NPAFn GFVKZZpe31Ul3bb/bu+/K7un7UxI9XEtBd1AWnxE8ghCo7PXbdYqvy10B0cVSnh2 2PUWNcu71aHc8gySH0bO0v7HGq9QuhMlYvf9+i1XHGoGO7+IyaC5KpE21zv+10DJ Bn5YM6Dx95TKynGKBkQk3KE2fAVzZBwwySss1jrt8L4vLyk0PnJLTtgUY7PLB/QW auwmseyrco6ijWVLBKykr/gOmqivZumWZpBNDmaip83aQcgs8WDx+DQKJ81RdMDD DR4m4PAjzu2DwKmah1Isaytt8yJ+kfHUpYLMgSWTCcjljDz+rFgwKK5pw1OAcXNS Cwberlx/mS3VqsCPMYpYbqymzgnAuHI07sSF/Wu2VJCAo1jtwYTMHNYi9q71pHOz TgHvMvRw5KbjZGLuNdKywbpebO0oVBqEMSeT8y3golzbkSzTxCbfUNjcKBbLyreq dPU6fZWAtsc0w2o4l7vwUyjmVRoYEZnFSCSqQWAXQnYVhDWXemhgishOl8ISKrYE XwmYwlj+Ceo= =pYWj - -----END PGP SIGNATURE----- - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. 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