The remote Ubuntu 18.04 LTS / 20.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-4754-3 advisory.

  - Lib/zipfile.py in Python through 3.7.2 allows remote attackers to cause a denial of service (resource     consumption) via a ZIP bomb. (CVE-2019-9674)

  - library/glob.html in the Python 2 and 3 documentation before 2016 has potentially misleading information     about whether sorting occurs, as demonstrated by irreproducible cancer-research results. NOTE: the effects     of this documentation cross application domains, and thus it is likely that security-relevant code     elsewhere is affected. This issue is not a Python implementation bug, and there are no reports that NMR     researchers were specifically relying on library/glob.html. In other words, because the older     documentation stated finds all the pathnames matching a specified pattern according to the rules used by     the Unix shell, one might have incorrectly inferred that the sorting that occurs in a Unix shell also     occurred for glob.glob. There is a workaround in newer versions of Willoughby nmr-data_compilation-p2.py     and nmr-data_compilation-p3.py, which call sort() directly. (CVE-2019-17514)

  - In Lib/tarfile.py in Python through 3.8.3, an attacker is able to craft a TAR archive leading to an     infinite loop when opened by tarfile.open, because _proc_pax lacks header validation. (CVE-2019-20907)

  - Python 2.7 through 2.7.17, 3.5 through 3.5.9, 3.6 through 3.6.10, 3.7 through 3.7.6, and 3.8 through 3.8.1     allows an HTTP server to conduct Regular Expression Denial of Service (ReDoS) attacks against a client     because of urllib.request.AbstractBasicAuthHandler catastrophic backtracking. (CVE-2020-8492)

  - http.client in Python 3.x before 3.5.10, 3.6.x before 3.6.12, 3.7.x before 3.7.9, and 3.8.x before 3.8.5     allows CRLF injection if the attacker controls the HTTP request method, as demonstrated by inserting CR     and LF control characters in the first argument of HTTPConnection.request. (CVE-2020-26116)

  - In Python 3 through 3.9.0, the Lib/test/multibytecodec_support.py CJK codec tests call eval() on content     retrieved via HTTP. (CVE-2020-27619)

  - Python 3.x through 3.9.1 has a buffer overflow in PyCArg_repr in _ctypes/callproc.c, which may lead to     remote code execution in certain Python applications that accept floating-point numbers as untrusted     input, as demonstrated by a 1e300 argument to c_double.from_param. This occurs because sprintf is used     unsafely. (CVE-2021-3177)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

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Ubuntu 18.04 LTS / 20.04 LTS : Python vulnerabilities (USN-4754-3)

critical Nessus Plugin ID 148008

Version 1.4