__________________________________________________________ The U.S. Department of Energy Computer Incident Advisory Capability ___ __ __ _ ___ / | /_\ / \___ __|__ / \ \___ __________________________________________________________ INFORMATION BULLETIN fetchmail -- programming error [DSA-900-3] November 21, 2005 18:00 GMT Number Q-056 [REVISED 22 NOV 2005] ______________________________________________________________________________ PROBLEM: It was discovered that the fetchmailconfig program which is provided as part of fetchmail, an SSL enabled POP3, APOP, IMAP mail gatherer/forwarder, creates the new configuration in an insecure fashion that can lead to leaking passwords for mail accounts to local users. PLATFORM: Debian GNU/Linux 3.0 (woody) Debian GNU/Linux 3.1 (sarge) DAMAGE: Can lead to leaking passwords for mail accounts to local users. SOLUTION: Apply current patches. ______________________________________________________________________________ VULNERABILITY The risk is LOW. Can lead to leaking passwords for mail ASSESSMENT: accounts to local users. ______________________________________________________________________________ LINKS: CIAC BULLETIN: http://www.ciac.org/ciac/bulletins/Q-056.shtml ORIGINAL BULLETIN: http://www.us.debian.org/security/2005/dsa-900 CVE: http://www.cve.mitre.org/cgi-bin/cvename.cgi?name= CVE-2005-3088 ______________________________________________________________________________ REVISION HISTORY: 11/22/2005 - Debian revised this Security Advisory to rev.3. [***** Start DSA-900-3 *****] DSA-900-3 fetchmail -- programming error Date Reported: 18 Nov 2005 Affected Packages: fetchmail Vulnerable: Yes Security database references: In the Debian bugtracking system: Bug 336096. In the Bugtraq database (at SecurityFocus): BugTraq ID 15179. In Mitre's CVE dictionary: CVE-2005-3088. More information: Due to restrictive dependency definition for fetchmail-ssl the updated fetchmailconf package couldn't be installed on the old stable distribution (woody) together with fetchmail-ssl. Hence, this update loosens it, so that the update can be pulled in. For completeness we're including the original advisory text: Thomas Wolff discovered that the fetchmailconf program which is provided as part of fetchmail, an SSL enabled POP3, APOP, IMAP mail gatherer/forwarder, creates the new configuration in an insecure fashion that can lead to leaking passwords for mail accounts to local users. This update also fixes a regression in the package for stable caused by the last security update. For the old stable distribution (woody) this problem has been fixed in version 5.9.11-6.4 of fetchmail and in version 5.9.11-6.3 of fetchmail-ssl. For the stable distribution (sarge) this problem has been fixed in version 6.2.5-12sarge3. For the unstable distribution (sid) this problem has been fixed in version 6.2.5.4-1. We recommend that you upgrade your fetchmail package. Fixed in: Debian GNU/Linux 3.0 (woody) Source: http://security.debian.org/pool/updates/main/f/fetchmail/fetchmail_5.9.11-6.4.dsc http://security.debian.org/pool/updates/main/f/fetchmail/fetchmail_5.9.11-6.4.diff.gz http://security.debian.org/pool/updates/main/f/fetchmail/fetchmail_5.9.11.orig.tar.gz http://security.debian.org/pool/updates/main/f/fetchmail-ssl/fetchmail-ssl_5.9.11-6.3.dsc http://security.debian.org/pool/updates/main/f/fetchmail-ssl/fetchmail-ssl_5.9.11-6.3.diff.gz http://security.debian.org/pool/updates/main/f/fetchmail-ssl/fetchmail-ssl_5.9.11.orig.tar.gz Architecture-independent component: http://security.debian.org/pool/updates/main/f/fetchmail/fetchmail-common_5.9.11-6.4_all.deb http://security.debian.org/pool/updates/main/f/fetchmail/fetchmailconf_5.9.11-6.4_all.deb Alpha: http://security.debian.org/pool/updates/main/f/fetchmail/fetchmail_5.9.11-6.4_alpha.deb http://security.debian.org/pool/updates/main/f/fetchmail-ssl/fetchmail-ssl_5.9.11-6.3_alpha.deb ARM: http://security.debian.org/pool/updates/main/f/fetchmail/fetchmail_5.9.11-6.4_arm.deb http://security.debian.org/pool/updates/main/f/fetchmail-ssl/fetchmail-ssl_5.9.11-6.3_arm.deb Intel IA-32: http://security.debian.org/pool/updates/main/f/fetchmail/fetchmail_5.9.11-6.4_i386.deb http://security.debian.org/pool/updates/main/f/fetchmail-ssl/fetchmail-ssl_5.9.11-6.3_i386.deb Intel IA-64: http://security.debian.org/pool/updates/main/f/fetchmail/fetchmail_5.9.11-6.4_ia64.deb http://security.debian.org/pool/updates/main/f/fetchmail-ssl/fetchmail-ssl_5.9.11-6.3_ia64.deb HPPA: http://security.debian.org/pool/updates/main/f/fetchmail/fetchmail_5.9.11-6.4_hppa.deb http://security.debian.org/pool/updates/main/f/fetchmail-ssl/fetchmail-ssl_5.9.11-6.3_hppa.deb Motorola 680x0: http://security.debian.org/pool/updates/main/f/fetchmail/fetchmail_5.9.11-6.4_m68k.deb http://security.debian.org/pool/updates/main/f/fetchmail-ssl/fetchmail-ssl_5.9.11-6.3_m68k.deb Big endian MIPS: http://security.debian.org/pool/updates/main/f/fetchmail/fetchmail_5.9.11-6.4_mips.deb http://security.debian.org/pool/updates/main/f/fetchmail-ssl/fetchmail-ssl_5.9.11-6.3_mips.deb Little endian MIPS: http://security.debian.org/pool/updates/main/f/fetchmail/fetchmail_5.9.11-6.4_mipsel.deb http://security.debian.org/pool/updates/main/f/fetchmail-ssl/fetchmail-ssl_5.9.11-6.3_mipsel.deb PowerPC: http://security.debian.org/pool/updates/main/f/fetchmail/fetchmail_5.9.11-6.4_powerpc.deb http://security.debian.org/pool/updates/main/f/fetchmail-ssl/fetchmail-ssl_5.9.11-6.3_powerpc.deb IBM S/390: http://security.debian.org/pool/updates/main/f/fetchmail/fetchmail_5.9.11-6.4_s390.deb http://security.debian.org/pool/updates/main/f/fetchmail-ssl/fetchmail-ssl_5.9.11-6.3_s390.deb Sun Sparc: http://security.debian.org/pool/updates/main/f/fetchmail/fetchmail_5.9.11-6.4_sparc.deb http://security.debian.org/pool/updates/main/f/fetchmail-ssl/fetchmail-ssl_5.9.11-6.3_sparc.deb Debian GNU/Linux 3.1 (sarge) Source: http://security.debian.org/pool/updates/main/f/fetchmail/fetchmail_6.2.5-12sarge3.dsc http://security.debian.org/pool/updates/main/f/fetchmail/fetchmail_6.2.5-12sarge3.diff.gz http://security.debian.org/pool/updates/main/f/fetchmail/fetchmail_6.2.5.orig.tar.gz Architecture-independent component: http://security.debian.org/pool/updates/main/f/fetchmail/fetchmail-ssl_6.2.5-12sarge3_all.deb http://security.debian.org/pool/updates/main/f/fetchmail/fetchmailconf_6.2.5-12sarge3_all.deb Alpha: http://security.debian.org/pool/updates/main/f/fetchmail/fetchmail_6.2.5-12sarge3_alpha.deb AMD64: http://security.debian.org/pool/updates/main/f/fetchmail/fetchmail_6.2.5-12sarge3_amd64.deb ARM: http://security.debian.org/pool/updates/main/f/fetchmail/fetchmail_6.2.5-12sarge3_arm.deb Intel IA-32: http://security.debian.org/pool/updates/main/f/fetchmail/fetchmail_6.2.5-12sarge3_i386.deb Intel IA-64: http://security.debian.org/pool/updates/main/f/fetchmail/fetchmail_6.2.5-12sarge3_ia64.deb HPPA: http://security.debian.org/pool/updates/main/f/fetchmail/fetchmail_6.2.5-12sarge3_hppa.deb Motorola 680x0: http://security.debian.org/pool/updates/main/f/fetchmail/fetchmail_6.2.5-12sarge3_m68k.deb Big endian MIPS: http://security.debian.org/pool/updates/main/f/fetchmail/fetchmail_6.2.5-12sarge3_mips.deb Little endian MIPS: http://security.debian.org/pool/updates/main/f/fetchmail/fetchmail_6.2.5-12sarge3_mipsel.deb PowerPC: http://security.debian.org/pool/updates/main/f/fetchmail/fetchmail_6.2.5-12sarge3_powerpc.deb IBM S/390: http://security.debian.org/pool/updates/main/f/fetchmail/fetchmail_6.2.5-12sarge3_s390.deb Sun Sparc: http://security.debian.org/pool/updates/main/f/fetchmail/fetchmail_6.2.5-12sarge3_sparc.deb MD5 checksums of the listed files are available in the original advisory. MD5 checksums of the listed files are available in the revised advisory. MD5 checksums of the listed files are available in the revised advisory. [***** End DSA-900-3 *****] _______________________________________________________________________________ CIAC wishes to acknowledge the contributions of Debian for the information contained in this bulletin. _______________________________________________________________________________ CIAC, the Computer Incident Advisory Capability, is the computer security incident response team for the U.S. Department of Energy (DOE) and the emergency backup response team for the National Institutes of Health (NIH). CIAC is located at the Lawrence Livermore National Laboratory in Livermore, California. CIAC is also a founding member of FIRST, the Forum of Incident Response and Security Teams, a global organization established to foster cooperation and coordination among computer security teams worldwide. 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