mbedtls/ChangeLog.d/net_poll-fd_setsize.txt
Gilles Peskine ddf4374879 Fix stack buffer overflow in net functions with large file descriptor
Fix a stack buffer overflow with mbedtls_net_poll() and
mbedtls_net_recv_timeout() when given a file descriptor that is beyond
FD_SETSIZE. The bug was due to not checking that the file descriptor
is within the range of an fd_set object.

Fix #4169

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-02-25 15:56:48 +01:00

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Security
* Fix a stack buffer overflow with mbedtls_net_poll() and
mbedtls_net_recv_timeout() when given a file descriptor that is
beyond FD_SETSIZE. Reported by FigBug in #4169.