Joined: 12 May 2004
|Posted: Fri Feb 16, 2007 1:26 am Post subject: [ GLSA 200702-05 ] Fail2ban: Denial of Service
|Gentoo Linux Security Advisory
Title: Fail2ban: Denial of Service (GLSA 200702-05)
Date: February 16, 2007
A flaw in Fail2ban may allow remote attackers to deny access to arbitrary
Fail2ban monitors log files for failed authentication attempts and can
block hosts responsible for repeated attacks.
Vulnerable: < 0.6.2
Unaffected: >= 0.6.2
Architectures: All supported architectures
A flaw in the method used to parse log entries allows remote,
unauthenticated attackers to forge authentication attempts from other
A remote attacker can add arbitrary hosts to the block list, denying
legitimate users access to a resource.
There is no known workaround at this time.
All Fail2ban users should upgrade to the latest version:
|# emerge --sync
# emerge --ask --oneshot --verbose ">=net-analyzer/fail2ban-0.6.2"
Last edited by GLSA on Fri May 04, 2012 4:23 am; edited 4 times in total