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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 >> [DSA248] DSA-248-1 hypermail Vulnerability Assessment Details
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[DSA248] DSA-248-1 hypermail |
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DSA-248-1 hypermail Detailed Explanation for this Vulnerability Assessment Ulf Härnhammar discovered two problems in hypermail, a program to create HTML archives of mailing lists. A possible hacker could craft a long filename for an attachment that would overflow two buffers when a certain option for interactive use was given, opening the possibility to inject arbitrary code. This code would then be executed under the user id hypermail runs as, mostly as a local user. Automatic and silent use of hypermail does not seem to be affected. The CGI program mail, which is not installed by the Debian package, does a reverse look-up of the user's IP number and copies the resulting hostname into a fixed-size buffer. A specially crafted DNS reply could overflow this buffer, opening the program to an exploit. For the stable distribution (woody) this problem has been fixed in version 2.1.3-2.0. For the old stable distribution (potato) this problem has been fixed in version 2.0b25-1.1. For the unstable distribution (sid) this problem has been fixed in version 2.1.6-1. We recommend that you upgrade your hypermail packages. Solution : http://www.debian.org/security/2003/dsa-248 Network Security Threat Level: High Networks Security ID: 6689, 6690 Vulnerability Assessment Copyright: This script is (C) 2005 Michel Arboi |
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