GLSA-200707-13 : Fail2ban: Denial of Service
Medium Nessus Plugin ID 25809
SynopsisThe remote Gentoo host is missing one or more security-related patches.
DescriptionThe remote host is affected by the vulnerability described in GLSA-200707-13 (Fail2ban: Denial of Service)
A vulnerability has been discovered in Fail2ban when parsing log files.
A remote attacker could send specially crafted SSH login banners to the vulnerable host, which would prevent any ssh connection to the host and result in a Denial of Service.
There is no known workaround at this time.
SolutionAll Fail2ban users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose '>=net-analyzer/fail2ban-0.8.0-r1'