Buffer Overflow Affecting python3-devel package, versions <0:3.6.8-18.0.3.el7


Severity

Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

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

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  • Snyk IDSNYK-ORACLE7-PYTHON3DEVEL-2598534
  • published10 Apr 2022
  • 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 Oracle:7 python3-devel to version 0:3.6.8-18.0.3.el7 or higher.
This issue was patched in ELSA-2021-9101.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python3-devel package and not the python3-devel package as distributed by Oracle. See How to fix? for Oracle:7 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