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Ozgur Ozdemircili 425th MAS Izmir / TURKEY Dsn: 675- 3236 -----Original Message----- From: Ismail YENIGUL [mailto:[EMAIL PROTECTED] Sent: Thursday, March 18, 2004 10:00 AM To: [EMAIL PROTECTED] Subject: [freebsd] [EMAIL PROTECTED]: FreeBSD Security Advisory FreeBSD-SA-04:05.openssl] Merhana cvsup ve make world yapmak gerekiyor. birde cekirdek derlenirse guzel olur;) ----- Forwarded message from FreeBSD Security Advisories <[EMAIL PROTECTED]> ----- Delivered-To: [EMAIL PROTECTED] Delivered-To: [EMAIL PROTECTED] Delivered-To: [EMAIL PROTECTED] Date: Wed, 17 Mar 2004 08:48:32 -0800 (PST) X-Authentication-Warning: freefall.freebsd.org: nectar set sender to [EMAIL PROTECTED] using -f From: FreeBSD Security Advisories <[EMAIL PROTECTED]> To: FreeBSD Security Advisories <[EMAIL PROTECTED]> Precedence: bulk Subject: FreeBSD Security Advisory FreeBSD-SA-04:05.openssl X-BeenThere: [EMAIL PROTECTED] X-Mailman-Version: 2.1.1 Reply-To: [EMAIL PROTECTED] List-Id: Security issues [members-only posting] <freebsd-security.freebsd.org> List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-security>, <mailto:[EMAIL PROTECTED]> List-Archive: <http://lists.freebsd.org/pipermail/freebsd-security> List-Post: <mailto:[EMAIL PROTECTED]> List-Help: <mailto:[EMAIL PROTECTED]> List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-security>, <mailto:[EMAIL PROTECTED]> Errors-To: [EMAIL PROTECTED] -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ============================================================================ = FreeBSD-SA-04:05.openssl Security Advisory The FreeBSD Project Topic: Denial-of-service vulnerability in OpenSSL Category: crypto Module: openssl Announced: 2004-03-17 Credits: OpenSSL Project <URL:http://www.openssl.org> Codenomicon Ltd <URL:http://www.codenomicon.com> Affects: All FreeBSD 4.x and 5.x releases Corrected: 2004-03-17 12:23:51 UTC (RELENG_4, 4.9-STABLE) 2004-03-17 12:14:12 UTC (RELENG_5_2, 5.2.1-RELEASE-p3) 2004-03-17 12:14:56 UTC (RELENG_5_1, 5.1-RELEASE-p16) 2004-03-17 12:17:13 UTC (RELENG_4_9, 4.9-RELEASE-p4) 2004-03-17 12:18:23 UTC (RELENG_4_8, 4.8-RELEASE-p17) CVE Name: CAN-2004-0079 FreeBSD only: NO For general information regarding FreeBSD Security Advisories, including descriptions of the fields above, security branches, and the following sections, please visit <URL:http://www.freebsd.org/security/>. I. Background FreeBSD includes software from the OpenSSL Project. The OpenSSL Project is a collaborative effort to develop a robust, commercial- grade, full-featured, and Open Source toolkit implementing the Secure Sockets Layer (SSL v2/v3) and Transport Layer Security (TLS v1) protocols as well as a full-strength general purpose cryptography library. II. Problem Description When processing an SSL/TLS ChangeCipherSpec message, OpenSSL may fail to check that a new cipher has been previously negotiated. This may result in a null pointer dereference. III. Impact A remote attacker could perform a specially crafted SSL/TLS handshake with an application that utilizes OpenSSL, triggering the null pointer dereference and causing the application to crash. Depending upon the specifics of the application, this may result in an effective denial-of-service. IV. Workaround No workaround is known. V. Solution Perform one of the following: 1) Upgrade your vulnerable system to 4-STABLE; or to the RELENG_5_2, RELENG_4_9, or RELENG_4_8 security branch dated after the correction date. 2) To patch your present system: The following patches have been verified to apply to FreeBSD 4.8, 4.9, 5.1, and 5.2 systems. a) Download the relevant patch from the location below, and verify the detached PGP signature using your PGP utility. # fetch ftp://ftp.FreeBSD.org/pub/FreeBSD/CERT/patches/SA-04:05/openssl.patch # fetch ftp://ftp.FreeBSD.org/pub/FreeBSD/CERT/patches/SA-04:05/openssl.patch.asc b) Execute the following commands as root: # cd /usr/src # patch < /path/to/patch c) Recompile the operating system as described in <URL: http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/makeworld.html >. Note that any statically linked applications that are not part of the base system (i.e. from the Ports Collection or other 3rd-party sources) must be recompiled. All affected applications must be restarted for them to use the corrected library. Though not required, rebooting may be the easiest way to accomplish this. VI. Correction details The following list contains the revision numbers of each file that was corrected in FreeBSD. Branch Revision Path - ------------------------------------------------------------------------- RELENG_4 src/crypto/openssl/crypto/opensslv.h 1.1.1.1.2.9 src/crypto/openssl/ssl/s3_pkt.c 1.1.1.1.2.7 RELENG_5_2 src/UPDATING 1.282.2.11 src/crypto/openssl/crypto/opensslv.h 1.1.1.14.2.1 src/crypto/openssl/ssl/s3_pkt.c 1.1.1.8.4.1 src/sys/conf/newvers.sh 1.56.2.10 RELENG_5_1 src/UPDATING 1.251.2.18 src/crypto/openssl/crypto/opensslv.h 1.1.1.13.2.1 src/crypto/openssl/ssl/s3_pkt.c 1.1.1.8.2.1 src/sys/conf/newvers.sh 1.50.2.18 RELENG_4_9 src/UPDATING 1.73.2.89.2.5 src/crypto/openssl/crypto/opensslv.h 1.1.1.1.2.8.2.1 src/crypto/openssl/ssl/s3_pkt.c 1.1.1.1.2.6.4.1 src/sys/conf/newvers.sh 1.44.2.32.2.5 RELENG_4_8 src/UPDATING 1.73.2.80.2.20 src/crypto/openssl/crypto/opensslv.h 1.1.1.1.2.7.2.1 src/crypto/openssl/ssl/s3_pkt.c 1.1.1.1.2.6.2.1 src/sys/conf/newvers.sh 1.44.2.29.2.18 - ------------------------------------------------------------------------- VII. References <URL: http://www.openssl.org/news/secadv_20040317.txt > <URL: http://cvs.openssl.org/chngview?cn=12033 > -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.4 (FreeBSD) iD8DBQFAWH8nFdaIBMps37IRAgsZAKCPXaoTb16c8JGJL+Uz7eOX8/864ACbB059 AIfN8fbeiGJ3fdG0pKAMwMw= =2f24 -----END PGP SIGNATURE----- _______________________________________________ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-security To unsubscribe, send any mail to "[EMAIL PROTECTED]" ----- End forwarded message ----- -- Ismail YENIGUL http://www.acikkod.com - Acikkod Yayinlari http://www.EnderUNIX.org GnuPG Key: http://yenigul.net/ismail.gpg Authorization for a project will be granted only when none of the authorizers can be blamed if the project fails but when all of the authorizers can claim credit if it succeeds. --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] Liste arsivi: http://lists.enderunix.org ve http://www.mail-archive.com/[EMAIL PROTECTED] http://ipucu.EnderUNIX.org - ihtiyac duyacaginiz kisa bilgiler bu sitede! --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] Liste arsivi: http://lists.enderunix.org ve http://www.mail-archive.com/[EMAIL PROTECTED] http://ipucu.EnderUNIX.org - ihtiyac duyacaginiz kisa bilgiler bu sitede!
