BufferOverflow in Eremove Client

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.OR.ID

ECHO_ADV_42$2006

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[ECHO_ADV_42$2006] BufferOverflow in Eremove Client

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Author       : Dedi Dwianto

Date         : Aug, 01st 2006

Location     : Indonesia, Jakarta

Web          : http://advisories.echo.or.id/adv/adv42-theday-2006.txt

Exploitation : Local

Critical Lvl : High

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Affected software description:

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Application : Eremove

version     : 1.4

URL         : http://eremove.sourceforge.net/

Description :

Eremove is a simple application for linux, based on GTK, for logging into

a POP3 mail account, quickly seeing a summary of everything that is there

waiting for you, and previewing/deleteing some or all of those emails painlessly.

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Vulnerability:

~~~~~~~~~~~~~~~~

The function priview_create  used by Eremove  is affected by a buffer-overflow

vulnerability which happens when it tries to store the exceeding data

available in the input email in the message_body  buffer of only 65534 bytes.

------------------gui.cpp-----------------------------

.....

gint preview_create (int message_num) {

...

GtkWidget       *hbox;

GtkWidget       *vscrollbar;

char            *tmp_pntr;

char            tmp_str[255];

char            buf[65534];

char            message_body[65534];

gint            i;

...

}

if (!find_header_field("Date", buf, &date)) {

date = (char *) malloc(strlen("unspecified")*sizeof(char));

strcpy(date, "unspecified");

}

strcpy(message_body, buf);

...

----------------------------------------------------------

POC:

~~~~

Send EMail with Attachment more than 100 KB

and Openwith eremove.

Eremove will be crash.

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Shoutz:

~~~~~~~

~ y3dips,moby,comex,z3r0byt3,K-159,c-a-s-e,S`to,lirva32,anonymous

~ My Lovely Jessy

~ newbie_hacker (at) yahoogroups (dot) com [email concealed]

~ #aikmel #e-c-h-o @irc.dal.net

~ SUPPORT PALESTINE & LEBANON

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Contact:

~~~~~~~~

Dedi Dwianto || echo|staff || the_day[at]echo[dot]or[dot]id

Homepage: http://theday.echo.or.id/

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