security advisorycriticaldebian
l2tpd, a layer 2 tunneling client/server program, forgot to initialize the random generator, which made all generated random numbers 100% guessable.. - -------------------------------------------------------------------------- Debian Security Advisory DSA 152-1 This email address is being protected from spambots. You need JavaScript enabled to view it. Debian -- Security Information Martin Schulze August 13th, 2002 - -------------------------------------------------------------------------- Package : l2tpd Vulnerability : missing random seed Problem-Type : remote Debian-specific: no Current versions of l2tpd, a layer 2 tunneling client/server program, forgot to initialize the random generator which made it vulnerable since all generated random number were 100% guessable. When dealing with the size of the value in an attribute value pair, too many bytes were able to be copied, which could lead into the vendor field being overwritten. These problems have been fixed in version 0.67-1.1 for the current stable distribution (woody) and in version 0.68-1 for the unstable distribution (sid). The old stable distribution (potato) is not affected, since it doesn't contain the l2tpd package. We recommend that you upgrade your l2tpd packages. wget url will fetch the file for you dpkg -i file.deb will install the referenced file. If you are using the apt-get package manager, use the line for sources.list as given below: apt-get update will update the internal database apt-get upgrade will install corrected packages You may use an automated update by adding the resources from the footer to the proper configuration. Debian GNU/Linux 3.0 alias woody - -------------------------------- Source archives: Size/MD5 checksum: 556 ffe4fded4647ac003ffdd4978661ca15 Size/MD5 checksum: 2339 b647394faed6dba02687e7709299836a Size/MD5 checksum: 121685 d40065070e34c44389e4c749b61916c6 Alpha architecture: Size/MD5 checksum: 99940a3caa77d343536f68753ea64aa336a45 ARM architecture: Size/MD5 checksum: 90756 603a9b88e98001c1602d464571dce765 Intel IA-32 architecture: Size/MD5 checksum: 88130 bbd745997296fd61edc9777de121c9a5 Intel IA-64 architecture: Size/MD5 checksum: 110726 dc180c2040f8f29f868e5039e09b0879 HP Precision architecture: Size/MD5 checksum: 94918 9629d5a679cf336036d485a32fa0b6db Motorola 680x0 architecture: Size/MD5 checksum: 84818 c61280d6f968b9052dfc9f9e5c34cbd5 Big endian MIPS architecture: Size/MD5 checksum: 94608 62cfeab1e06185f58b79c7c8f3b93cce Little endian MIPS architecture: Size/MD5 checksum: 94944 6d164b24e067355b26b7234434ff21cb PowerPC architecture: Size/MD5 checksum: 89318 a736a5fc05493393e1b0ade0097f60a0 IBM S/390 architecture: Size/MD5 checksum: 87736 6e1d259729d21a92537c38d315f0286f Sun Sparc architecture: Size/MD5 checksum: 91790 faade7c56590eae84e8b0ef14014a29b These files will probably be moved into the stable distribution on its next revision. - --------------------------------------------------------------------------------- For apt-get: deb Debian -- Security Information stable/updates main For dpkg-ftp: dists/stable/updates/main Mailing list: This email address is being protected from spambots. You need JavaScript enabled to view it. Package info: `apt-cache show ' and https://www.debian.org/distrib/packages . An important advisory for l2tpd highlights a critical security flaw related to random seed handling requiring an immediate upgrade for safety.. l2tpd Security, Random Seed Issue, Debian Advisory, Software Vulnerability, Remote Attack. . Severity: Critical. LinuxSecurity.com Team
Aug 13, 2002
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