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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 >> Debian Local Security Checks >> [DSA042] DSA-042-1 gnuserv Vulnerability Assessment Details
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[DSA042] DSA-042-1 gnuserv |
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DSA-042-1 gnuserv Detailed Explanation for this Vulnerability Assessment Klaus Frank has found a vulnerability in the way gnuserv handled remote connections. Gnuserv is a remote control facility for Emacsen which is available as standalone program as well as included in XEmacs21. Gnuserv has a buffer for which insufficient boundary checks were made. Unfortunately this buffer affected access control to gnuserv which is using a MIT-MAGIC-COOCKIE based system. It is possible to overflow the buffer containing the cookie and foozle cookie comparison. Gnuserv was derived from emacsserver which is part of GNU Emacs. It was reworked completely and not much is left over from its time as part of GNU Emacs. Therefore the versions of emacsserver in both Emacs19 and Emacs20 doesn't look vulnerable to this bug, they don't even provide a MIT-MAGIC-COOKIE based mechanism. This could lead into a remote user issue commands under the UID of the person running gnuserv. Solution : http://www.debian.org/security/2001/dsa-042 Network Security Threat Level: High Networks Security ID: 2333 Vulnerability Assessment Copyright: This script is (C) 2005 Michel Arboi |
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Network Interface Cards, NICs |
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