Joined: 12 May 2004
|Posted: Wed Jun 25, 2014 10:26 pm Post subject: [ GLSA 201406-23 ] DenyHosts: Denial of Service
|Gentoo Linux Security Advisory
Title: DenyHosts: Denial of Service (GLSA 201406-23)
Date: June 25, 2014
A vulnerability in DenyHosts could allow a remote attacker to
create a Denial of Service condition.
DenyHosts is a script intended to be run by Linux system administrators
to help thwart SSH server attacks.
Vulnerable: < 2.6-r9
Unaffected: >= 2.6-r9
Architectures: All supported architectures
DenyHosts does not properly define the regular expressions used when
parsing SSH authentication logs.
A remote attacker could possibly cause a Denial of Service condition via
a crafted login name.
There is no known workaround at this time.
All DenyHost users should upgrade to the latest version:
|# emerge --sync
# emerge --ask --oneshot --verbose ">=app-admin/denyhosts-2.6-r9"