Bug 218824 - (CVE-2006-6301) CVE-2006-6301: denyhosts 2.5 hosts.deny DoS
CVE-2006-6301: denyhosts 2.5 hosts.deny DoS
Status: CLOSED CURRENTRELEASE
Product: Fedora
Classification: Fedora
Component: denyhosts (Show other bugs)
6
All Linux
medium Severity medium
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Assigned To: Jason Tibbitts
Fedora Extras Quality Assurance
: Security
Depends On:
Blocks:
  Show dependency treegraph
 
Reported: 2006-12-07 13:24 EST by Ville Skyttä
Modified: 2007-11-30 17:11 EST (History)
2 users (show)

See Also:
Fixed In Version: 2.6-2
Doc Type: Bug Fix
Doc Text:
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Last Closed: 2006-12-07 22:43:52 EST
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RHEL 7.3 requirements from Atomic Host:
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Description Ville Skyttä 2006-12-07 13:24:38 EST
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 16:21:32 EST
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 2006-12-07 22:43:52 EST
Updates (package version 2.6-2) pushed for FC-3, FC-4, FC-5, FC-6, EL-4, EL-5
and rawhide.

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