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Amazon Linux AMI: CVE-2021-3177: Security patch for python27, python36, python38 (ALAS-2021-1484)

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Amazon Linux AMI: CVE-2021-3177: Security patch for python27, python36, python38 (ALAS-2021-1484)

Severity
8
CVSS
(AV:N/AC:L/Au:N/C:P/I:P/A:P)
Published
01/19/2021
Created
02/27/2021
Added
02/25/2021
Modified
10/14/2022

Description

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.

Solution(s)

  • amazon-linux-upgrade--python36
  • amazon-linux-upgrade--python38
  • amazon-linux-upgrade-python27

References

  • ALAS-2021-1484
  • CVE-2021-3177
  • USN-4754-1
  • USN-4754-2
  • USN-4754-3
  • USN-4754-4
  • USN-4754-5
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