vulnerability
Debian: CVE-2021-3177: python2.7, python3.9 -- security update
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 8 | (AV:N/AC:L/Au:N/C:P/I:P/A:P) | Jan 19, 2021 | Apr 7, 2021 | Aug 15, 2025 |
Severity
8
CVSS
(AV:N/AC:L/Au:N/C:P/I:P/A:P)
Published
Jan 19, 2021
Added
Apr 7, 2021
Modified
Aug 15, 2025
Description
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.
Solutions
debian-upgrade-python2-7debian-upgrade-python3-9
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