Buffer Overflow Affecting python36-debuginfo package, versions <0:3.6.12-1.20.amzn1


Severity

Recommended
0.0
medium
0
10

Based on Amazon Linux security rating.

Threat Intelligence

Exploit Maturity
Not Defined
EPSS
2.51% (90th percentile)

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  • Snyk IDSNYK-AMZN201803-PYTHON36DEBUGINFO-1725512
  • published27 Sept 2021
  • disclosed19 Jan 2021

Introduced: 19 Jan 2021

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

How to fix?

Upgrade Amazon-Linux:2018.03 python36-debuginfo to version 0:3.6.12-1.20.amzn1 or higher.
This issue was patched in ALAS-2021-1484.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python36-debuginfo package and not the python36-debuginfo package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2018.03 relevant fixed versions and status.

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.

References

CVSS Scores

version 3.1