Buffer Overflow Affecting python package, versions [3.6.0,3.6.13)[3.7.0,3.7.10)[3.8.0,3.8.8)[3.9.0,3.9.2)


Severity

Recommended
0.0
critical
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
2.51% (90th percentile)

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  • Snyk IDSNYK-UNMANAGED-PYTHON-2317706
  • published14 Dec 2021
  • disclosed19 Jan 2021
  • creditUnknown

Introduced: 19 Jan 2021

CVE-2021-3177  (opens in a new tab)
CWE-120  (opens in a new tab)

How to fix?

Upgrade python to version 3.6.13, 3.7.10, 3.8.8, 3.9.2 or higher.

Overview

Affected versions of this package are vulnerable to Buffer Overflow. 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.

CVSS Scores

version 3.1