CVE-2009-4016

Published: Feb 4, 2010Modified: Apr 29, 2026

6.8

Vector

AV:N/AC:M/Au:N/C:P/I:P/A:P

Exploitability: 8.6 / Impact: 6.4

Source: NVD

Description

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.

Affected (74)

Products: Ircd Hybrid: Ircd Hybrid · Ircd Ratbox: Ircd Ratbox · Oftc: Oftc Hybrid

1 product

1 product

1 product

Configuration A

2 vulnerable

Vulnerable Software	Affected Versions
Ircd Hybrid Ircd Hybrid	Version 7.2.2
Ircd Hybrid Ircd Hybrid	Version 7.2.3

Configuration B

54 vulnerable

Vulnerable Software	Affected Versions
Ircd Ratbox Ircd Ratbox	Up to 2.2.8
Ircd Ratbox Ircd Ratbox	Version 1.0
Ircd Ratbox Ircd Ratbox	Version 1.1.1
Ircd Ratbox Ircd Ratbox	Version 1.1.2
Ircd Ratbox Ircd Ratbox	Version 1.1
Ircd Ratbox Ircd Ratbox	Version 1.2.1
Ircd Ratbox Ircd Ratbox	Version 1.2.2
Ircd Ratbox Ircd Ratbox	Version 1.2.3
Ircd Ratbox Ircd Ratbox	Version 1.3.1
Ircd Ratbox Ircd Ratbox	Version 1.3.2
Ircd Ratbox Ircd Ratbox	Version 1.3
Ircd Ratbox Ircd Ratbox	Version 1.4.1
Ircd Ratbox Ircd Ratbox	Version 1.4.2
Ircd Ratbox Ircd Ratbox	Version 1.4
Ircd Ratbox Ircd Ratbox	Version 1.4 rc1
Ircd Ratbox Ircd Ratbox	Version 1.4 rc2
Ircd Ratbox Ircd Ratbox	Version 1.5.1
Ircd Ratbox Ircd Ratbox	Version 1.5.2
Ircd Ratbox Ircd Ratbox	Version 1.5.3
Ircd Ratbox Ircd Ratbox	Version 1.5
Ircd Ratbox Ircd Ratbox	Version 2.0.0
Ircd Ratbox Ircd Ratbox	Version 2.0.10
Ircd Ratbox Ircd Ratbox	Version 2.0.11
Ircd Ratbox Ircd Ratbox	Version 2.0.1
Ircd Ratbox Ircd Ratbox	Version 2.0.2
Ircd Ratbox Ircd Ratbox	Version 2.0.3
Ircd Ratbox Ircd Ratbox	Version 2.0.4
Ircd Ratbox Ircd Ratbox	Version 2.0.5
Ircd Ratbox Ircd Ratbox	Version 2.0.6
Ircd Ratbox Ircd Ratbox	Version 2.0.7
Ircd Ratbox Ircd Ratbox	Version 2.0.8
Ircd Ratbox Ircd Ratbox	Version 2.0.9
Ircd Ratbox Ircd Ratbox	Version 2.1.0
Ircd Ratbox Ircd Ratbox	Version 2.1.0 beta1
Ircd Ratbox Ircd Ratbox	Version 2.1.0 beta2
Ircd Ratbox Ircd Ratbox	Version 2.1.1
Ircd Ratbox Ircd Ratbox	Version 2.1.2
Ircd Ratbox Ircd Ratbox	Version 2.1.3
Ircd Ratbox Ircd Ratbox	Version 2.1.4
Ircd Ratbox Ircd Ratbox	Version 2.1.5
Ircd Ratbox Ircd Ratbox	Version 2.1.6
Ircd Ratbox Ircd Ratbox	Version 2.1.7
Ircd Ratbox Ircd Ratbox	Version 2.1.8
Ircd Ratbox Ircd Ratbox	Version 2.2.0
Ircd Ratbox Ircd Ratbox	Version 2.2.0 rc1
Ircd Ratbox Ircd Ratbox	Version 2.2.0 rc2
Ircd Ratbox Ircd Ratbox	Version 2.2.0 rc3
Ircd Ratbox Ircd Ratbox	Version 2.2.1
Ircd Ratbox Ircd Ratbox	Version 2.2.2
Ircd Ratbox Ircd Ratbox	Version 2.2.3
Ircd Ratbox Ircd Ratbox	Version 2.2.4
Ircd Ratbox Ircd Ratbox	Version 2.2.5
Ircd Ratbox Ircd Ratbox	Version 2.2.6
Ircd Ratbox Ircd Ratbox	Version 2.2.7

Configuration C

18 vulnerable

Vulnerable Software	Affected Versions
Oftc Oftc Hybrid	Up to 1.6.7
Oftc Oftc Hybrid	Version 1.4.0
Oftc Oftc Hybrid	Version 1.4.1
Oftc Oftc Hybrid	Version 1.5.0
Oftc Oftc Hybrid	Version 1.5.1
Oftc Oftc Hybrid	Version 1.5.2
Oftc Oftc Hybrid	Version 1.5.3
Oftc Oftc Hybrid	Version 1.5.4
Oftc Oftc Hybrid	Version 1.5.5
Oftc Oftc Hybrid	Version 1.5.6
Oftc Oftc Hybrid	Version 1.5.7
Oftc Oftc Hybrid	Version 1.6.0
Oftc Oftc Hybrid	Version 1.6.1
Oftc Oftc Hybrid	Version 1.6.2
Oftc Oftc Hybrid	Version 1.6.3
Oftc Oftc Hybrid	Version 1.6.4
Oftc Oftc Hybrid	Version 1.6.5
Oftc Oftc Hybrid	Version 1.6.6