[Buildroot] [PATCH] package/python3: add upstream security fix for CVE-2021-3177

Peter Korsgaard peter at korsgaard.com
Wed Feb 10 18:58:27 UTC 2021


>>>>> "Peter" == Peter Korsgaard <peter at korsgaard.com> writes:

 > Fixes the following security issue:
 > - CVE-2021-3177: 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.

 > For details, see the advisory:
 > https://python-security.readthedocs.io/vuln/ctypes-buffer-overflow-pycarg_repr.html

 > Signed-off-by: Peter Korsgaard <peter at korsgaard.com>

Committed to 2020.11.x, thanks.

I'll backport a similar patch for 3.8 for 2020.02.x.

-- 
Bye, Peter Korsgaard



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