Julius Hemanth Pitti 232b82afd4 netkit-telnetd: Fix buffer overflow in netoprintf
netoprintf() was not handling a case where
return value of vsnprintf is greater than
"size"(2nd argument), results in buffer overflow
while adjusting "nfrontp" pointer to point
beyond "netobuf" buffer.

Here is one such case where "nfrontp"
crossed boundaries of "netobuf", and
pointing to another global variable.

(gdb) p &netobuf[8255]
$5 = 0x55c93afe8b1f <netobuf+8255> ""
(gdb) p nfrontp
$6 = 0x55c93afe8c20 <terminaltype> "\377"
(gdb) p &terminaltype
$7 = (char **) 0x55c93afe8c20 <terminaltype>
(gdb)

This resulted in crash of telnetd service
with segmentation fault.

Signed-off-by: Julius Hemanth Pitti <jpitti@cisco.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>
2020-07-21 16:46:36 -07:00
2016-10-21 18:20:43 +02:00
2020-07-06 07:28:04 -07:00
2020-07-20 10:06:09 -07:00
2019-06-15 16:45:33 -07:00
2018-08-27 10:53:58 -07:00

Collection of layers for the OE-core universe

Main layer maintainer: Khem Raj <raj.khem@gmail.com>

This repository is a collection of layers to suppliment OE-Core
with additional packages, Each layer have designated maintainer
Please see the respective READMEs in the layer subdirectories
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