\_ _____/\_ ___ \ / | \\_____ | __)_ / \ \// ~ \/ | | \\ \___\ Y / | /_______ / \______ /\___|_ /\_______ /

\/ \/ \/ \/

.OR.ID

ECHO_ADV_42$2006

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

[ECHO_ADV_42$2006] BufferOverflow in Eremove Client

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

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

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

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.

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

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.

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

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

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

Contact:

~~~~~~~~

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

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

-------------------------------- [ EOF ] ----------------------------------

[ reply ]