p PatchFirst

PatchFirst · Latest vulnerabilities

python3.9 vulnerabilities

Vulnerabilities published for python3.9 in the last 30 days: 0. Listed in the KEV catalogue: 0.

RSS ↗
Filter vulnerabilities
Clear filters

Vulnerabilities: 7

  1. CVE-2021-3733

    Medium · CVSS 6.5EPSS 4.8%Fix available

    CVE-2021-3733

    There's a flaw in urllib's AbstractBasicAuthHandler class. An attacker who controls a malicious HTTP server that an HTTP client (such as web browser) connects to, could trigger a Regular Expression Denial of Service (ReDOS) during an authentication request with a specially crafted payload that is sent by the server to the client. The greatest threat that this flaw poses is to application availability.

    • Update to 3.9.5-3~20.04.1
    Published Updated
  2. CVE-2021-3737

    High · CVSS 7.5EPSS 13.17%Fix available

    CVE-2021-3737

    A flaw was found in python. An improperly handled HTTP response in the HTTP client code of python may allow a remote attacker, who controls the HTTP server, to make the client script enter an infinite loop, consuming CPU time. The highest threat from this vulnerability is to system availability.

    • Update to 3.9.5-3ubuntu0~20.04.1
    Published Updated
  3. CVE-2021-3426

    Medium · CVSS 5.7EPSS 1.88%Fix available

    CVE-2021-3426

    There's a flaw in Python 3's pydoc. A local or adjacent attacker who discovers or is able to convince another local or adjacent user to start a pydoc server could access the server and use it to disclose sensitive information belonging to the other user that they would not normally be able to access. The highest risk of this flaw is to data confidentiality. This flaw affects Python versions before 3.8.9, Python versions before 3.9.3 and Python versions before 3.10.0a7.

    • Update to 3.9.5-3~20.04.1
    Published Updated
  4. CVE-2021-23336

    Medium · CVSS 5.9EPSS 40.74%Fix available

    Web Cache Poisoning

    The package python/cpython from 0 and before 3.6.13, from 3.7.0 and before 3.7.10, from 3.8.0 and before 3.8.8, from 3.9.0 and before 3.9.2 are vulnerable to Web Cache Poisoning via urllib.parse.parse_qsl and urllib.parse.parse_qs by using a vector called parameter cloaking. When the attacker can separate query parameters using a semicolon (;), they can cause a difference in the interpretation of the request between the proxy (running with default configuration) and the server. This can result in malicious requests being cached as completely safe ones, as the proxy would usually not see the semicolon as a separator, and therefore would not in

    • Update to 3.9.5-3~20.04.1
    Published Updated
  5. CVE-2021-3177

    Critical · CVSS 9.8EPSS 24.22%Fix available

    CVE-2021-3177

    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.

    • Update to 3.9.5-3~20.04.1
    Published Updated

Check your server

Check your installed stack and versions against the current vulnerability feeds.

Check your server →