From: cinap_lenrek@felloff.net
To: 9front@9front.org
Subject: [9front] critical bug in libc's idn2utf()
Date: Sun, 31 Oct 2021 17:25:10 +0100 [thread overview]
Message-ID: <B32F4ACBBAA38327A48256B6E5B31746@felloff.net> (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:
ip/ipconfig
ndb/dns
webfs
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
--
cinap
reply other threads:[~2021-11-01 9:12 UTC|newest]
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