[ SOURCE: http://www.secureroot.com/security/advisories/9693907041.html ] -----BEGIN PGP SIGNED MESSAGE----- ============================================================================= FreeBSD-SA-00:50 Security Advisory FreeBSD, Inc. Topic: listmanager port allows local root compromise Category: ports Module: listmanager Announced: 2000-09-13 Affects: Ports collection. Corrected: 2000-09-08 Credits: Discovered during internal auditing Vendor status: Updated version released. FreeBSD only: NO I. Background Listmanager is a mailing list manager. II. Problem Description The listmanager port, versions prior to 2.105.1, contained several locally exploitable buffer overflow vulnerabilities which could be used to gain root privileges. Since the source code to listmanager is not available, it is difficult to determine whether there are remaining security vulnerabilities, or whether the software was previously exploitable remotely, but we believe the author has made a good faith effort to improve the security of the code. The listmanager port is not installed by default, nor is it "part of FreeBSD" as such: it is part of the FreeBSD ports collection, which contains over 3800 third-party applications in a ready-to-install format. The ports collections shipped with FreeBSD 4.1 and 3.5.1 contain this problem since it was discovered after the releases. FreeBSD makes no claim about the security of these third-party applications, although an effort is underway to provide a security audit of the most security-critical ports. III. Impact Unprivileged users can obtain root privileges on the local system. If you have not chosen to install the listmanager port/package, then your system is not vulnerable to this problem. IV. Workaround Deinstall the listmanager port/package, if you have installed it. V. Solution One of the following: 1) Upgrade your entire ports collection and rebuild the listmanager port. 2) Deinstall the old package and install a new package dated after the correction date, obtained from: ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/i386/packages-3-stable/mail/listmanager-2.105.1.tgz ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/i386/packages-4-stable/mail/listmanager-2.105.1.tgz ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/alpha/packages-4-stable/mail/listmanager-2.105.1.tgz ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/i386/packages-5-current/mail/listmanager-2.105.1.tgz ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/alpha/packages-5-current/mail/listmanager-2.105.1.tgz NOTE: It may be several days before updated packages are available. 3) download a new port skeleton for the listmanager port from: http://www.freebsd.org/ports/ and use it to rebuild the port. 4) Use the portcheckout utility to automate option (3) above. The portcheckout port is available in /usr/ports/devel/portcheckout or the package can be obtained from: ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/i386/packages-3-stable/devel/portcheckout-2.0.tgz ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/i386/packages-4-stable/devel/portcheckout-2.0.tgz ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/alpha/packages-4-stable/devel/portcheckout-2.0.tgz ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/i386/packages-5-current/devel/portcheckout-2.0.tgz ftp://ftp.FreeBSD.org/pub/FreeBSD/ports/alpha/packages-5-current/devel/portcheckout-2.0.tgz -----BEGIN PGP SIGNATURE----- Version: 2.6.2 iQCVAwUBOb/kC1UuHi5z0oilAQGUUwQArIH9EegIaatzGdjc9t1g8y7hKEajUTzC Y5qeFxkOKosCMEEVfiZns6mo+nMuQsTwfxgthCnsCqX9PDXXAWrBjDOixmhp5nB3 3ro8UvTiivXIplzncCEbBWZocXCLZWLPV2uoemsr3Py9OZHmCeXKuqsX0OonIHDy r+cAObdg7XA= =YlxZ -----END PGP SIGNATURE-----