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b4be735fdb
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> (cherry picked from commit 232b82afd405c526f822294509e1d32388544ed4) [appears to be CVE-2020-10188] Signed-off-by: Armin Kuster <akuster808@gmail.com>
Collection of layers for the OE-core universe dunfell maintainer: Armin Kuster <akuster808@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