Bug 218824 (CVE-2006-6301)

Summary: CVE-2006-6301: denyhosts 2.5 hosts.deny DoS
Product: [Fedora] Fedora Reporter: Ville Skyttä <ville.skytta>
Component: denyhostsAssignee: Jason Tibbitts <j>
Status: CLOSED CURRENTRELEASE QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: medium Docs Contact:
Priority: medium    
Version: 6CC: extras-qa, fedora-security-list
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: 2.6-2 Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2006-12-08 03:43:52 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:

Description Ville Skyttä 2006-12-07 18:24:38 UTC 
http://nvd.nist.gov/nvd.cfm?cvename=CVE-2006-6301

"DenyHosts 2.5 does not properly parse sshd logs file, which allows remote
attackers to add arbitrary hosts to the /etc/hosts.deny file and cause a denial
of service by adding arbitrary IP addresses to the sshd log file, as
demonstrated by loggig in to ssh using a login name containing certain strings
with an IP address, which is not properly handled by a regular expression."

Based on version numbers, affects FE-3+ and EPEL-4+
Comment 1 Jason Tibbitts 2006-12-07 21:21:32 UTC 
Upstream has released DenyHosts 2.6 to correct this issue; currently building
for rawhide and if successful will be pushed on all branches later today.
Comment 2 Jason Tibbitts 2006-12-08 03:43:52 UTC 
Updates (package version 2.6-2) pushed for FC-3, FC-4, FC-5, FC-6, EL-4, EL-5
and rawhide.