Buffer Overflow Affecting python3 package, versions <3.6.12-3.75.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
4.04% (93rd percentile)

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  • Snyk IDSNYK-SLES152-PYTHON3-2688091
  • published14 Apr 2022
  • disclosed19 Feb 2021

Introduced: 19 Feb 2021

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

How to fix?

Upgrade SLES:15.2 python3 to version 3.6.12-3.75.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python3 package and not the python3 package as distributed by SLES. See How to fix? for SLES:15.2 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