NVD Vulnerability Detail
Search Exploit, PoC
CVE-2009-4016
Summary

Integer underflow in the clean_string function in irc_string.c in (1) IRCD-hybrid 7.2.2 and 7.2.3, (2) ircd-ratbox before 2.2.9, and (3) oftc-hybrid before 1.6.8, when flatten_links is disabled, allows remote attackers to execute arbitrary code or cause a denial of service (daemon crash) via a LINKS command.

Publication Date Feb. 5, 2010, 5:15 a.m.
Registration Date Jan. 29, 2021, 1:25 p.m.
Last Update Feb. 5, 2010, 2 p.m.
CVSS2.0 : MEDIUM
Score 6.8
Vector AV:N/AC:M/Au:N/C:P/I:P/A:P
攻撃元区分(AV) ネットワーク
攻撃条件の複雑さ(AC) 中
攻撃前の認証要否(Au) 不要
機密性への影響(C) 低
完全性への影響(I) 低
可用性への影響(A) 低
Get all privileges. いいえ
Get user privileges いいえ
Get other privileges いいえ
User operation required いいえ
Affected software configurations
Configuration1 or higher or less more than less than
cpe:2.3:a:ircd-hybrid:ircd-hybrid:7.2.2:*:*:*:*:*:*:*
cpe:2.3:a:ircd-hybrid:ircd-hybrid:7.2.3:*:*:*:*:*:*:*
Configuration2 or higher or less more than less than
cpe:2.3:a:ircd-ratbox:ircd-ratbox:1.0:*:*:*:*:*:*:*
cpe:2.3:a:ircd-ratbox:ircd-ratbox:1.1:*:*:*:*:*:*:*
cpe:2.3:a:ircd-ratbox:ircd-ratbox:1.1.1:*:*:*:*:*:*:*
cpe:2.3:a:ircd-ratbox:ircd-ratbox:1.1.2:*:*:*:*:*:*:*
cpe:2.3:a:ircd-ratbox:ircd-ratbox:1.2.1:*:*:*:*:*:*:*
cpe:2.3:a:ircd-ratbox:ircd-ratbox:1.2.2:*:*:*:*:*:*:*
cpe:2.3:a:ircd-ratbox:ircd-ratbox:1.2.3:*:*:*:*:*:*:*
cpe:2.3:a:ircd-ratbox:ircd-ratbox:1.3:*:*:*:*:*:*:*
cpe:2.3:a:ircd-ratbox:ircd-ratbox:1.3.1:*:*:*:*:*:*:*
cpe:2.3:a:ircd-ratbox:ircd-ratbox:1.3.2:*:*:*:*:*:*:*
cpe:2.3:a:ircd-ratbox:ircd-ratbox:1.4:*:*:*:*:*:*:*
cpe:2.3:a:ircd-ratbox:ircd-ratbox:1.4:rc1:*:*:*:*:*:*
cpe:2.3:a:ircd-ratbox:ircd-ratbox:1.4:rc2:*:*:*:*:*:*
cpe:2.3:a:ircd-ratbox:ircd-ratbox:1.4.1:*:*:*:*:*:*:*
cpe:2.3:a:ircd-ratbox:ircd-ratbox:1.4.2:*:*:*:*:*:*:*
cpe:2.3:a:ircd-ratbox:ircd-ratbox:1.5:*:*:*:*:*:*:*
cpe:2.3:a:ircd-ratbox:ircd-ratbox:1.5.1:*:*:*:*:*:*:*
cpe:2.3:a:ircd-ratbox:ircd-ratbox:1.5.2:*:*:*:*:*:*:*
cpe:2.3:a:ircd-ratbox:ircd-ratbox:1.5.3:*:*:*:*:*:*:*
cpe:2.3:a:ircd-ratbox:ircd-ratbox:2.0.0:*:*:*:*:*:*:*
cpe:2.3:a:ircd-ratbox:ircd-ratbox:2.0.1:*:*:*:*:*:*:*
cpe:2.3:a:ircd-ratbox:ircd-ratbox:2.0.2:*:*:*:*:*:*:*
cpe:2.3:a:ircd-ratbox:ircd-ratbox:2.0.3:*:*:*:*:*:*:*
cpe:2.3:a:ircd-ratbox:ircd-ratbox:2.0.4:*:*:*:*:*:*:*
cpe:2.3:a:ircd-ratbox:ircd-ratbox:2.0.5:*:*:*:*:*:*:*
cpe:2.3:a:ircd-ratbox:ircd-ratbox:2.0.6:*:*:*:*:*:*:*
cpe:2.3:a:ircd-ratbox:ircd-ratbox:2.0.7:*:*:*:*:*:*:*
cpe:2.3:a:ircd-ratbox:ircd-ratbox:2.0.8:*:*:*:*:*:*:*
cpe:2.3:a:ircd-ratbox:ircd-ratbox:2.0.9:*:*:*:*:*:*:*
cpe:2.3:a:ircd-ratbox:ircd-ratbox:2.0.10:*:*:*:*:*:*:*
cpe:2.3:a:ircd-ratbox:ircd-ratbox:2.0.11:*:*:*:*:*:*:*
cpe:2.3:a:ircd-ratbox:ircd-ratbox:2.1.0:*:*:*:*:*:*:*
cpe:2.3:a:ircd-ratbox:ircd-ratbox:2.1.0:beta1:*:*:*:*:*:*
cpe:2.3:a:ircd-ratbox:ircd-ratbox:2.1.0:beta2:*:*:*:*:*:*
cpe:2.3:a:ircd-ratbox:ircd-ratbox:2.1.1:*:*:*:*:*:*:*
cpe:2.3:a:ircd-ratbox:ircd-ratbox:2.1.2:*:*:*:*:*:*:*
cpe:2.3:a:ircd-ratbox:ircd-ratbox:2.1.3:*:*:*:*:*:*:*
cpe:2.3:a:ircd-ratbox:ircd-ratbox:2.1.4:*:*:*:*:*:*:*
cpe:2.3:a:ircd-ratbox:ircd-ratbox:2.1.5:*:*:*:*:*:*:*
cpe:2.3:a:ircd-ratbox:ircd-ratbox:2.1.6:*:*:*:*:*:*:*
cpe:2.3:a:ircd-ratbox:ircd-ratbox:2.1.7:*:*:*:*:*:*:*
cpe:2.3:a:ircd-ratbox:ircd-ratbox:2.1.8:*:*:*:*:*:*:*
cpe:2.3:a:ircd-ratbox:ircd-ratbox:2.2.0:*:*:*:*:*:*:*
cpe:2.3:a:ircd-ratbox:ircd-ratbox:2.2.0:rc1:*:*:*:*:*:*
cpe:2.3:a:ircd-ratbox:ircd-ratbox:2.2.0:rc2:*:*:*:*:*:*
cpe:2.3:a:ircd-ratbox:ircd-ratbox:2.2.0:rc3:*:*:*:*:*:*
cpe:2.3:a:ircd-ratbox:ircd-ratbox:2.2.1:*:*:*:*:*:*:*
cpe:2.3:a:ircd-ratbox:ircd-ratbox:2.2.2:*:*:*:*:*:*:*
cpe:2.3:a:ircd-ratbox:ircd-ratbox:2.2.3:*:*:*:*:*:*:*
cpe:2.3:a:ircd-ratbox:ircd-ratbox:2.2.4:*:*:*:*:*:*:*
cpe:2.3:a:ircd-ratbox:ircd-ratbox:2.2.5:*:*:*:*:*:*:*
cpe:2.3:a:ircd-ratbox:ircd-ratbox:2.2.6:*:*:*:*:*:*:*
cpe:2.3:a:ircd-ratbox:ircd-ratbox:2.2.7:*:*:*:*:*:*:*
cpe:2.3:a:ircd-ratbox:ircd-ratbox:*:*:*:*:*:*:*:* 2.2.8
Configuration3 or higher or less more than less than
cpe:2.3:a:oftc:oftc-hybrid:1.4.0:*:*:*:*:*:*:*
cpe:2.3:a:oftc:oftc-hybrid:1.4.1:*:*:*:*:*:*:*
cpe:2.3:a:oftc:oftc-hybrid:1.5.0:*:*:*:*:*:*:*
cpe:2.3:a:oftc:oftc-hybrid:1.5.1:*:*:*:*:*:*:*
cpe:2.3:a:oftc:oftc-hybrid:1.5.2:*:*:*:*:*:*:*
cpe:2.3:a:oftc:oftc-hybrid:1.5.3:*:*:*:*:*:*:*
cpe:2.3:a:oftc:oftc-hybrid:1.5.4:*:*:*:*:*:*:*
cpe:2.3:a:oftc:oftc-hybrid:1.5.5:*:*:*:*:*:*:*
cpe:2.3:a:oftc:oftc-hybrid:1.5.6:*:*:*:*:*:*:*
cpe:2.3:a:oftc:oftc-hybrid:1.5.7:*:*:*:*:*:*:*
cpe:2.3:a:oftc:oftc-hybrid:1.6.0:*:*:*:*:*:*:*
cpe:2.3:a:oftc:oftc-hybrid:1.6.1:*:*:*:*:*:*:*
cpe:2.3:a:oftc:oftc-hybrid:1.6.2:*:*:*:*:*:*:*
cpe:2.3:a:oftc:oftc-hybrid:1.6.3:*:*:*:*:*:*:*
cpe:2.3:a:oftc:oftc-hybrid:1.6.4:*:*:*:*:*:*:*
cpe:2.3:a:oftc:oftc-hybrid:1.6.5:*:*:*:*:*:*:*
cpe:2.3:a:oftc:oftc-hybrid:1.6.6:*:*:*:*:*:*:*
cpe:2.3:a:oftc:oftc-hybrid:*:*:*:*:*:*:*:* 1.6.7
Related information, measures and tools
Common Vulnerabilities List
JVN Vulnerability Information
RCD-hybrid などの clean_string 関数におけるサービス運用妨害 (DoS) の脆弱性
Title RCD-hybrid などの clean_string 関数におけるサービス運用妨害 (DoS) の脆弱性
Summary

(1) IRCD-hybrid、(2) ircd-ratbox および (3) oftc-hybrid の clean_string 関数は、flatten_links が無効になっている際、整数アンダーフローが発生するため、任意のコードを実行される、またはサービス運用妨害 (デーモンクラッシュ) 状態となる脆弱性が存在します。

Possible impacts 第三者により、LINKS コマンドを介して、任意のコードを実行される、またはサービス運用妨害 (デーモンクラッシュ) 状態にされる可能性があります。
Solution

ベンダより正式な対策が公開されています。ベンダ情報を参照して適切な対策を実施してください。
Publication Date Feb. 4, 2010, midnight
Registration Date Sept. 25, 2012, 5:38 p.m.
Last Update Sept. 25, 2012, 5:38 p.m.
Affected System
IRCD-Hybrid
IRCD-Hybrid 7.2.2 および 7.2.3
ircd-ratbox
ircd-ratbox 2.2.9 未満
oftc
oftc-hybrid 1.6.8 未満
CVE (情報セキュリティ 共通脆弱性識別子)
CWE (共通脆弱性タイプ一覧)
ベンダー情報
Change Log
No Changed Details Date of change
0 [2012年09月25日]
  掲載		 Feb. 17, 2018, 10:37 a.m.