* [9front] critical bug in libc's idn2utf()
@ 2021-10-31 16:25 cinap_lenrek
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From: cinap_lenrek @ 2021-10-31 16:25 UTC (permalink / raw)
I just pushed a fix for a stack buffer-overflow bug
in libc's idn2utf() function to convert a punycode
domain name into utf-8.
The bug existed in all releases starting from:
Date: Tue Sep 25 20:14:25 +0200 2018
The following programs are affected:
It is highly recommended to sysupdate and rebuild the
whole system *NOW*, including the kernel as ip/ipconfig
is included in the kernels bootfs image.
you can see if you are affected by running the following:
term% hget http://AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
webfs 8183: suicide: sys: trap: fault write addr=0x0 pc=0x20ddec
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2021-10-31 16:25 [9front] critical bug in libc's idn2utf() cinap_lenrek
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