From: Justin Cormack <justin@specialbusservice.com>
To: musl@lists.openwall.com,
Konstantin Serebryany <konstantin.s.serebryany@gmail.com>,
Rich Felker <dalias@libc.org>
Subject: Re: buffer overflow in regcomp and a way to find more of those
Date: Sun, 22 Mar 2015 06:36:58 +0000 [thread overview]
Message-ID: <CAK4o1Wy_cqo_rD5JX7uyJyc8uXY2L5U=8RzL8aG5dgW8US2PSA@mail.gmail.com> (raw)
In-Reply-To: <20150321221303.GL16260@port70.net>
On 21 March 2015 at 22:13, Szabolcs Nagy <nsz@port70.net> wrote:
> * Szabolcs Nagy <nsz@port70.net> [2015-03-21 22:38:25 +0100]:
>> ah.. r14 is incremented as the string is parsed
>> the original string is
>>
>> (gdb) p (char*)0x6e2dc3-35
>> $37 = 0x6e2da0 "8:a:2:8:3:28:8::2:83:20:8:2:833:23:2.8288;3:33::2.82.83333"
>>
>> with this i can reproduce the crash
>
> i assume
>
> 1:2:3:4:5:6:7::
>
> is invalid ipv6 address
No, it is valid, the last :: expands to :0. RFC 2373 says "The "::"
can also be used to compress the leading and/or trailing zeros in an
address."
Justin
next prev parent reply other threads:[~2015-03-22 6:36 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-03-20 20:17 Konstantin Serebryany
2015-03-20 20:40 ` Rich Felker
2015-03-20 21:28 ` Szabolcs Nagy
2015-03-20 23:48 ` Szabolcs Nagy
2015-03-20 22:32 ` Rich Felker
2015-03-20 23:52 ` Szabolcs Nagy
2015-03-21 0:06 ` Konstantin Serebryany
2015-03-21 0:26 ` Szabolcs Nagy
2015-03-21 0:46 ` Rich Felker
2015-03-21 0:54 ` Konstantin Serebryany
2015-03-21 1:00 ` Rich Felker
2015-03-21 1:05 ` Konstantin Serebryany
2015-03-21 1:10 ` Konstantin Serebryany
2015-03-21 1:23 ` Szabolcs Nagy
2015-03-21 1:30 ` Rich Felker
2015-03-21 2:10 ` Szabolcs Nagy
2015-03-21 2:17 ` Rich Felker
2015-03-21 1:32 ` Rich Felker
2015-03-21 1:37 ` Konstantin Serebryany
2015-03-21 1:56 ` Rich Felker
2015-03-21 2:14 ` Konstantin Serebryany
2015-03-21 2:20 ` Rich Felker
2015-03-21 6:05 ` Konstantin Serebryany
2015-03-21 13:28 ` Szabolcs Nagy
2015-03-21 21:03 ` Szabolcs Nagy
2015-03-21 21:38 ` Szabolcs Nagy
2015-03-21 22:13 ` Szabolcs Nagy
2015-03-22 6:36 ` Justin Cormack [this message]
2015-03-23 5:02 ` Konstantin Serebryany
2015-03-23 12:25 ` Szabolcs Nagy
2015-03-23 15:56 ` Konstantin Serebryany
2015-03-23 4:55 ` Konstantin Serebryany
2015-03-23 12:35 ` Szabolcs Nagy
2015-03-23 14:40 ` stephen Turner
2015-03-23 14:53 ` Szabolcs Nagy
2015-03-23 15:46 ` stephen Turner
2015-03-23 16:28 ` Rich Felker
2015-03-23 17:21 ` Nathan McSween
2015-03-28 22:00 ` Szabolcs Nagy
2015-03-28 22:32 ` Konstantin Serebryany
2015-03-28 22:38 ` Rich Felker
2015-03-28 23:15 ` Szabolcs Nagy
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to='CAK4o1Wy_cqo_rD5JX7uyJyc8uXY2L5U=8RzL8aG5dgW8US2PSA@mail.gmail.com' \
--to=justin@specialbusservice.com \
--cc=dalias@libc.org \
--cc=konstantin.s.serebryany@gmail.com \
--cc=musl@lists.openwall.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
Code repositories for project(s) associated with this public inbox
https://git.vuxu.org/mirror/musl/
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).