[Comm] ошибка в /bin/mail - buffer overrun

[Comm] ошибка в /bin/mail - buffer overrun

[Mike Lykov]

http://www.securityfocus.com/bid/7760/discussion/

A vulnerability has been discovered in the Linux /bin/mail utility. The 
problem occurs when processing excessive data within the carbon copy field. 
Due to insufficient bounds checking while parsing this information it may be 
possible to trigger a buffer overrun. 
 
An attacker could exploit this issue to execute arbitrary commands. It should 
be noted that local exploitation may be inconsequential, however a malicious 
e-mail message or CGI interface could be a sufficient conduit for remote 
exploitation.

-- vulnerable
RedHat Linux 9.0 i386
Slackware Linux 8.1

not vulnerable
Slackware Linux 9.0

А как насчет ALT Linux ? 

-- 
Mike

Re: [Comm] ошибка в /bin/mail - buffer overrun

[Dmitry Alexeyev]

В сообщении от Среда 04 Июнь 2003 07:57 Mike Lykov написал:
> http://www.securityfocus.com/bid/7760/discussion/
>
> A vulnerability has been discovered in the Linux /bin/mail utility.
> The problem occurs when processing excessive data within the carbon
> copy field. Due to insufficient bounds checking while parsing this
> information it may be possible to trigger a buffer overrun.
>
> An attacker could exploit this issue to execute arbitrary commands.
> It should be noted that local exploitation may be inconsequential,
> however a malicious e-mail message or CGI interface could be a
> sufficient conduit for remote exploitation.
>
> -- vulnerable
> RedHat Linux 9.0 i386
> Slackware Linux 8.1
>
> not vulnerable
> Slackware Linux 9.0
>
> А как насчет ALT Linux ?

http://www.securityfocus.com/bid/7760/exploit/
Это у меня не работает. 

----
[dmi@dmi dmi]$ ./bin_mail-exp.pl
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
.

Cc: too long to edit
...not printable...
      м─ХэЪЪЪ/bin/ksh": Ambiguous.
mail: (null): Bad address
---

WBR,
Dmitry