From security@guardiandigital.com Mon Jan 27 13:32:47 2003 From: EnGarde Secure Linux To: engarde-security@guardiandigital.com, Date: Mon, 27 Jan 2003 11:42:21 -0500 (EST) Subject: [Full-Disclosure] [ESA-20030127-002] fetchmail-ssl: heap overflow vulnerability -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 +------------------------------------------------------------------------+ | EnGarde Secure Linux Security Advisory January 27, 2003 | | http://www.engardelinux.org/ ESA-20030127-002 | | | | Package: fetchmail-ssl | | Summary: heap overflow vulnerability. | +------------------------------------------------------------------------+ EnGarde Secure Linux is a secure distribution of Linux that features improved access control, host and network intrusion detection, Web based secure remote management, e-commerce, and integrated open source security tools. OVERVIEW - -------- Stefan Esser of e-matters, while re-auditing the Fetchmail package, found another vulnerability. This heap overflow vulnerability allows a malicious remote attacker to crash Fetchmail or potentially execute arbitrary code as the user under which Fetchmail is being run. Please refer to the e-matters advisory for more information on this vulnerability: http://security.e-matters.de/advisories/052002.html The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CAN-2002-1365 to this issue. All users are recommended to upgrade as soon as possible. SOLUTION - -------- Users of the EnGarde Professional edition can use the Guardian Digital Secure Network to update their systems automatically. EnGarde Community users should upgrade to the most recent version as outlined in this advisory. Updates may be obtained from: ftp://ftp.engardelinux.org/pub/engarde/stable/updates/ http://ftp.engardelinux.org/pub/engarde/stable/updates/ Before upgrading the package, the machine must either: a) be booted into a "standard" kernel; or b) have LIDS disabled. To disable LIDS, execute the command: # /sbin/lidsadm -S -- -LIDS_GLOBAL To install the updated package, execute the command: # rpm -Uvh files You must now update the LIDS configuration by executing the command: # /usr/sbin/config_lids.pl To re-enable LIDS (if it was disabled), execute the command: # /sbin/lidsadm -S -- +LIDS_GLOBAL To verify the signatures of the updated packages, execute the command: # rpm -Kv files UPDATED PACKAGES - ---------------- These updated packages are for EnGarde Secure Linux Community Edition. Source Packages: SRPMS/fetchmail-ssl-6.1.0-1.0.6.src.rpm MD5 Sum: ae0150c61c667cd836cca1c64f76d807 Binary Packages: i386/fetchmail-ssl-6.1.0-1.0.6.i386.rpm MD5 Sum: a28aa248c0b262ec8745a7c776b8584b i686/fetchmail-ssl-6.1.0-1.0.6.i686.rpm MD5 Sum: 7dd04068ec8a400c72d711e4c2c2faee REFERENCES - ---------- Guardian Digital's public key: http://ftp.engardelinux.org/pub/engarde/ENGARDE-GPG-KEY Fetchmail's Official Web Site: http://www.tuxedo.org/~esr/fetchmail/ Security Contact: security@guardiandigital.com EnGarde Advisories: http://www.engardelinux.org/advisories.html - -------------------------------------------------------------------------- $Id: ESA-20030127-002-fetchmail-ssl,v 1.2 2003/01/27 16:39:35 rwm Exp $ - -------------------------------------------------------------------------- Author: Ryan W. Maple Copyright 2003, Guardian Digital, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.6 (GNU/Linux) Comment: For info see http://www.gnupg.org iD8DBQE+NWF1HD5cqd57fu0RAl8EAJ439LVJsArGS6xNcnsYIjdFTzggaQCfcsqS 1aP+QQfir/pzkW+fLpOWQ/U= =aNkw -----END PGP SIGNATURE----- ------------------------------------------------------------------------ To unsubscribe email engarde-security-request@engardelinux.org with "unsubscribe" in the subject of the message. Copyright(c) 2002 Guardian Digital, Inc. EnGardeLinux.org ------------------------------------------------------------------------ _______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.netsys.com/full-disclosure-charter.html