Test ID:	1.3.6.1.4.1.25623.1.0.845173
Category:	Ubuntu Local Security Checks
Title:	Ubuntu: Security Advisory (USN-5200-1)
Summary:	The remote host is missing an update for the 'python3.7, python3.8' package(s) announced via the USN-5200-1 advisory.
Description:	Summary: The remote host is missing an update for the 'python3.7, python3.8' package(s) announced via the USN-5200-1 advisory. Vulnerability Insight: It was discovered that the urllib.request.AbstractBasicAuthHandler class in Python contains regex allowing for catastrophic backtracking. Specially crafted traffic from a malicious HTTP server could cause a regular expression denial of service (ReDoS) condition for a client. (CVE-2020-8492) It was discovered that the urllib.request.AbstractBasicAuthHandler class in Python contains regex with a quadratic worst-case time complexity. Specially crafted traffic from a malicious HTTP server could cause a regular expression denial of service (ReDoS) condition for a client. (CVE-2021-3733) It was discovered that the Python urllib http client could enter into an infinite loop when incorrectly handling certain server responses (100 Continue response). Specially crafted traffic from a malicious HTTP server could cause a denial of service (DoS) condition for a client. (CVE-2021-3737) Affected Software/OS: 'python3.7, python3.8' package(s) on Ubuntu 18.04. Solution: Please install the updated package(s). CVSS Score: 7.1 CVSS Vector: AV:N/AC:M/Au:N/C:N/I:N/A:C
Cross-Ref:	Common Vulnerability Exposure (CVE) ID: CVE-2020-8492 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7WOKDEXLYW5UQ4S7PA7E37IITOC7C56J/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UESGYI5XDAHJBATEZN3MHNDUBDH47AS6/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/APGWEMYZIY5VHLCSZ3HD67PA5Z2UQFGH/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/A5NSAX4SC3V64PGZUPH7PRDLSON34Q5A/ https://security.gentoo.org/glsa/202005-09 https://bugs.python.org/issue39503 https://github.com/python/cpython/pull/18284 https://python-security.readthedocs.io/vuln/urllib-basic-auth-regex.html https://lists.apache.org/thread.html/rdb31a608dd6758c6093fd645aea3fbf022dd25b37109b6aaea5bc0b5@%3Ccommits.cassandra.apache.org%3E https://lists.apache.org/thread.html/rfec113c733162b39633fd86a2d0f34bf42ac35f711b3ec1835c774da@%3Ccommits.cassandra.apache.org%3E https://lists.debian.org/debian-lts-announce/2020/07/msg00011.html https://lists.debian.org/debian-lts-announce/2023/05/msg00024.html SuSE Security Announcement: openSUSE-SU-2020:0274 (Google Search) http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00003.html https://usn.ubuntu.com/4333-1/ https://usn.ubuntu.com/4333-2/ Common Vulnerability Exposure (CVE) ID: CVE-2021-3733 https://bugs.python.org/issue43075 https://bugzilla.redhat.com/show_bug.cgi?id=1995234 https://github.com/python/cpython/commit/7215d1ae25525c92b026166f9d5cac85fb https://github.com/python/cpython/pull/24391 https://ubuntu.com/security/CVE-2021-3733 https://lists.debian.org/debian-lts-announce/2023/06/msg00039.html Common Vulnerability Exposure (CVE) ID: CVE-2021-3737 https://security.netapp.com/advisory/ntap-20220407-0009/ https://bugs.python.org/issue44022 https://bugzilla.redhat.com/show_bug.cgi?id=1995162 https://github.com/python/cpython/pull/25916 https://github.com/python/cpython/pull/26503 https://python-security.readthedocs.io/vuln/urllib-100-continue-loop.html https://ubuntu.com/security/CVE-2021-3737 https://www.oracle.com/security-alerts/cpujul2022.html
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