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osvGoogleOSV:CVE-2021-3177
HistoryJan 19, 2021 - 6:15 a.m.

CVE-2021-3177

2021-01-1906:15:12
Google
osv.dev
17
python
buffer overflow
remote code execution
input validation
software security

EPSS

0.031

Percentile

91.2%

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