Nessus Plugin #14564

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[GLSA-200408-08] Cfengine: RSA Authentication Heap Corruption

Family:

Gentoo Local Security Checks

Category:

infos

Copyright:

(C) 2004 Michel Arboi

Summary:

Cfengine: RSA Authentication Heap Corruption

Version:

$Revision: 1.1 $

Cve_id:

-

Bugtraq_id:

-

Xrefs:

GLSA:200408-08

Description:

The remote host is affected by the vulnerability described in GLSA-200408-08
(Cfengine: RSA Authentication Heap Corruption)


Two vulnerabilities have been found in cfservd. One is a buffer overflow in
the AuthenticationDialogue function and the other is a failure to check the
proper return value of the ReceiveTransaction function.

Impact

An attacker could use the buffer overflow to execute arbitrary code with
the permissions of the user running cfservd, which is usually the root
user. However, before such an attack could be mounted, the IP-based ACL
would have to be bypassed. With the second vulnerability, an attacker could
cause a denial of service attack.

Workaround

There is no known workaround at this time. All users are encouraged to
upgrade to the latest available version of Cfengine. (It should be noted
that disabling cfservd will work around this particular problem. However,
in many cases, doing so will cripple your Cfengine setup. Upgrading is
strongly recommended.)

References:
http://www.coresecurity.com/common/showdoc.php?idx=387&idxseccion=10


Solution:
All Cfengine users should upgrade to the latest version:
# emerge sync
# emerge -pv ">=net-misc/cfengine-2.1.8"
# emerge ">=net-misc/cfengine-2.1.8"


Risk Factor : High