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Vulnerability Assessment & Network Security Forums |
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If through a vulnerability assessment, a network security issue is detected for the vulnerability below, applying the appropriate security patches in a timely matter is very important. If you have detected that your system has already been compromised, following CERT's Network Security recovery document will assist with recommended steps for system recovery. Home >> Browse Vulnerability Assessment Database >> Gentoo Local Security Checks >> [GLSA-200408-08] Cfengine: RSA Authentication Heap Corruption Vulnerability Assessment Details
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[GLSA-200408-08] Cfengine: RSA Authentication Heap Corruption |
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Cfengine: RSA Authentication Heap Corruption Detailed Explanation for this Vulnerability Assessment 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 A possible hacker 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, a possible hacker 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" Network Security Threat Level: High Networks Security ID: Vulnerability Assessment Copyright: (C) 2005 Michel Arboi |
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