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If through a vulnerability assessment, a network security issue is detected for the vulnerability below, applying the appropriate security patches in a timely matter is very important.  If you have detected that your system has already been compromised, following CERT's Network Security recovery document will assist with recommended steps for system recovery.


Home >> Browse Vulnerability Assessment Database >> Gentoo Local Security Checks >> [GLSA-200702-05] Fail2ban: Denial of Service


Vulnerability Assessment Details

[GLSA-200702-05] Fail2ban: Denial of Service

Vulnerability Assessment Summary
Fail2ban: Denial of Service

Detailed Explanation for this Vulnerability Assessment
The remote host is affected by the vulnerability described in GLSA-200702-05
(Fail2ban: Denial of Service)


A flaw in the method used to parse log entries permits remote,
unauthenticated attackers to forge authentication attempts from other
hosts.

Impact

A remote attacker can add arbitrary hosts to the block list, denying
legitimate users access to a resource.

Workaround

There is no known workaround at this time.

References:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-6302


Solution:
All Fail2ban users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=net-analyzer/fail2ban-0.6.2"


Network Security Threat Level: Medium


Networks Security ID:

Vulnerability Assessment Copyright: (C) 2007 Michel Arboi

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