CVEvulnerability

CVE-2001-1056

7.5 HIGH Published 2001-07-30 Modified 2026-06-16 Official page ↗
Status
Modified
Published
2001-07-30
Last modified
2026-06-16
Assigner
[email protected]
CVSS 2.0 ([email protected])
7.5 HIGH — AV:N/AC:L/Au:N/C:P/I:P/A:P

Description

IRC DCC helper in the ip_masq_irc IP masquerading module 2.2 allows remote attackers to bypass intended firewall restrictions by causing the target system to send a "DCC SEND" request to a malicious server which listens on port 6667, which may cause the module to believe that the traffic is a valid request and allow the connection to the port specified in the DCC SEND request.

Affected configurations

• linux linux kernel (> 2.0.1 <= 2.0.18) • linux linux kernel (>= 2.2.0 <= 2.2.18)

References