Bugtraq has a large number of subscribers whose out-of-office replies are sent even in response to mailing-list messages. Since this is a major nuisance, the Reply-To address on this email is fake. Please address replies to: NetBSD Security Officer <security-officerat_private> -----BEGIN PGP SIGNED MESSAGE----- NetBSD Security Advisory 2002-009 ================================= Topic: Multiple vulnerabilities in OpenSSL code Version: NetBSD-current: source prior to July 30, 2002 NetBSD-1.6 beta: affected NetBSD-1.5.3: affected NetBSD-1.5.2: affected NetBSD-1.5.1: affected NetBSD-1.5: affected NetBSD-1.4.*: not applicable pkgsrc: prior to openssl-0.9.6e Severity: Potential for remote root exploit Fixed: NetBSD-current: July 30, 2002 NetBSD-1.6 branch: not yet NetBSD-1.5 branch: August 1, 2002 via point patch (1.5.4 will include the fix) pkgsrc: not yet (will be openssl-0.9.6e and later) Abstract ======== There are multiple vulnerabilities found in openssl 0.9.6d and prior releases. There are four remotely-exploitable buffer overruns in SSL2/3 code. The ASN1 parser can be confused by invalid encodings (SSL/TLS code affected). None of these services are enabled by default in NetBSD, however, by enabling services built with these libraries, a system would become vulnerable. - From the OpenSSL advisory: "Everyone using OpenSSL 0.9.6d or earlier, or 0.9.7-beta2 or earlier or current development snapshots of 0.9.7 to provide SSL or TLS is vulnerable, whether client or server. 0.9.6d servers on 32-bit systems with SSL 2.0 disabled are not vulnerable." Technical Details ================= http://www.openssl.org/news/secadv_20020730.txt Solutions and Workarounds ========================= The following instructions describe how to upgrade your libcrypto/libssl binaries by updating your source tree and rebuilding and installing a new version of libcrypto/libssl. * NetBSD-current: Systems running NetBSD-current dated from before 2002-07-29 should be upgraded to NetBSD-current dated 2002-07-30 or later. The following directories need to be updated from the netbsd-current CVS branch (aka HEAD): crypto/Makefile.openssl crypto/dist/openssl lib/libcrypto lib/libssl To update from CVS, re-build, and re-install libcrypto and libssl: # cd src # cvs update -d -P crypto/Makefile.openssl crypto/dist/openssl \ lib/libcrypto lib/libssl # cd lib/libcrypto # make cleandir dependall # make install # cd lib/libssl # make cleandir dependall # make install If you have any statically-linked binaries that linked against libcrypto and/or libssl, you need to recompile them. * NetBSD 1.6 beta: The advisory will be updated to include instructions to remedy this problem for systems running NetBSD-1.6 branch. * NetBSD 1.5, 1.5.1, 1.5.2, 1.5.3: NetBSD 1.5.3 was recently released. This is a reminder to consider upgrading if you are running anything older than NetBSD 1.5.3. Many security-related improvements have been made. Systems running NetBSD 1.5.x dated from before 2002-08-01 should be upgraded to NetBSD 1.5 tree dated 2002-08-02 or later. The following directories need to be updated from the netbsd-1-5 CVS branch: crypto/Makefile.openssl crypto/dist/openssl lib/libcrypto lib/libssl To update from CVS, re-build, and re-install libcrypto and libssl: # cd src # cvs update -d -P -r netbsd-1-5 crypto/Makefile.openssl \ crypto/dist/openssl lib/libcrypto lib/libssl # cd lib/libcrypto # make cleandir dependall # make install # cd lib/libssl # make cleandir dependall # make install If you have any statically-linked binaries that linked against libcrypto and/or libssl, you need to recompile them. * NetBSD 1.4, 1.4.1, 1.4.2, 1.4.3: OpenSSL was not included in the base system in NetBSD-1.4.* Follow the directions for pkgsrc if you have installed it from pkgsrc. * pkgsrc: The updated packages will be available shortly. This advisory will be updated to reflect their availability. openssl-0.9.6nb2 (pkgsrc/security/openssl) and prior are vulnerable. Upgrade to openssl-0.9.6e or later. Packages which require openssl can be found by running 'pkg_info openssl'. Depending on the method you choose to update pkgsrc packages, a rebuild of the packages on that list may be performed for you by the package system. If you update using the experimental 'make replace' target, you will need to manually update any packages which build static binaries with libssl.a and libcrypto.a If you have statically linked binaries in pkgsrc, they have to be rebuilt. Statically linked binaries can be identified by the following command (note: be sure to include the directory you install pkgsrc binaries to, if you've changed LOCALBASE from the default of /usr/pkg) file /usr/pkg/{bin,sbin,libexec} | grep static Thanks To ========= A.L. Digital Ltd and John McDonald of Neohapsis. Adi Stav and James Yonan. CERT and the OpenSSL team. Jun-ichiro itojun Hagino for maintenance of OpenSSL in the NetBSD source tree, and preparing the initial advisory text. Revision History ================ 2002-08-01 Initial release More Information ================ An up-to-date PGP signed copy of this release will be maintained at ftp://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2002-009.txt.asc Information about NetBSD and NetBSD security can be found at http://www.NetBSD.ORG/ and http://www.NetBSD.ORG/Security/. Copyright 2002, The NetBSD Foundation, Inc. All Rights Reserved. $NetBSD: NetBSD-SA2002-009.txt,v 1.9 2002/08/01 16:07:37 david Exp $ -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.6 (NetBSD) Comment: For info see http://www.gnupg.org iQCVAwUBPUk5mj5Ru2/4N2IFAQHSKwQAsNUW26FBno45ApgV+9/N7vgkCJp92fgF p3VxGWvsBKUUcNBXCfeAD/2hb9PVa0vV0qmvrDE7OSCpuRK1z627jzq9QFLJZ0BC E1d2oOhzEidlzZNXyOSzHcuEAWup+sTg7jezbboUpEZmxjxupmMYAoSh3P9Vopw1 aMi0dk2V0C8= =jjoi -----END PGP SIGNATURE-----
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