Buffer Overflow Affecting python38-cryptography-debuginfo package, versions <0:2.8-3.module+el8.4.0+570+c2eaf144


Severity

Recommended
medium

Based on Rocky Linux security rating.

Threat Intelligence

EPSS
2.51% (91st percentile)

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  • Snyk IDSNYK-ROCKY8-PYTHON38CRYPTOGRAPHYDEBUGINFO-3209818
  • published5 Jan 2023
  • 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 Rocky-Linux:8 python38-cryptography-debuginfo to version 0:2.8-3.module+el8.4.0+570+c2eaf144 or higher.
This issue was patched in RLSA-2021:1879.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python38-cryptography-debuginfo package and not the python38-cryptography-debuginfo package as distributed by Rocky-Linux. See How to fix? for Rocky-Linux:8 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 Base Scores

version 3.1