Date: Thu, 4 Oct 2007 10:36:08 +0300 From: Vladimir Terziev <vlady@gbservices.biz> To: freebsd-security@freebsd.org Subject: Re: FreeBSD Security Advisory FreeBSD-SA-07:08.openssl Message-ID: <20071004103608.e67dd613.vlady@gbservices.biz> In-Reply-To: <200710032158.l93LwUfM089929@freefall.freebsd.org> References: <200710032158.l93LwUfM089929@freefall.freebsd.org>
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Hi, I have applied the patch on a FreeBSD 6.2-RELEASE system and several of the services (courier-imap, postfix) on the machine stopped. I got the following error: /libexec/ld-elf.so.1: /usr/lib/libssl.so.4: Undefined symbol "EVP_idea_cbc" I compared SSL libraries on the patched system with the same, but on unpatched system. The difference, i found, is an extra library in /usr/lib, on the patched system -- ``/usr/lib/libssl_p.a''. The searched symbol "EVP_idea_cbc" is exactly in this extra library, but it seems the library is not loaded/searched for symbols. Could someone point me how to prevent building of this extra library and keeping the same number of SSL libraries (of course patched) as of before patching the system ? Thanks in advance! Vladimir The symbol "EVP_idea_cbc" is in this extra library. On Wed, 3 Oct 2007 21:58:30 GMT FreeBSD Security Advisories <security-advisories@freebsd.org> wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > ============================================================================= > FreeBSD-SA-07:08.openssl Security Advisory > The FreeBSD Project > > Topic: Buffer overflow in OpenSSL SSL_get_shared_ciphers() > > Category: contrib > Module: openssl > Announced: 2007-10-03 > Credits: Moritz Jodeit > Affects: All FreeBSD releases. > Corrected: 2007-10-03 21:39:43 UTC (RELENG_6, 6.2-STABLE) > 2007-10-03 21:40:35 UTC (RELENG_6_2, 6.2-RELEASE-p8) > 2007-10-03 21:41:22 UTC (RELENG_6_1, 6.1-RELEASE-p20) > 2007-10-03 21:42:00 UTC (RELENG_5, 5.5-STABLE) > 2007-10-03 21:42:32 UTC (RELENG_5_5, 5.5-RELEASE-p16) > CVE Name: CVE-2007-5135 > > For general information regarding FreeBSD Security Advisories, > including descriptions of the fields above, security branches, and the > following sections, please visit <URL:http://security.FreeBSD.org/>. > > 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 > > A buffer overflow addressed in FreeBSD-SA-06:23.openssl has been found > to be incorrectly fixed. > > III. Impact > > For applications using the SSL_get_shared_ciphers() function, the > buffer overflow could allow an attacker to crash or potentially > execute arbitrary code with the permissions of the user running the > application. > > IV. Workaround > > No workaround is available, but only applications using the > SSL_get_shared_ciphers() function are affected. > > V. Solution > > Perform one of the following: > > 1) Upgrade your vulnerable system to 5-STABLE, or 6-STABLE, or to the > RELENG_6_2, RELENG_6_1, or RELENG_5_5 security branch dated after the > correction date. > > 2) To patch your present system: > > The following patch have been verified to apply to FreeBSD 5.5, 6.1, > and 6.2 systems. > > a) Download the relevant patch from the location below, and verify the > detached PGP signature using your PGP utility. > > # fetch http://security.FreeBSD.org/patches/SA-07:08/openssl.patch > # fetch http://security.FreeBSD.org/patches/SA-07:08/openssl.patch.asc > > b) Execute the following commands as root: > > # cd /usr/src > # patch < /path/to/patch > # cd /usr/src/secure/lib/libssl > # make obj && make depend && make && make install > > VI. Correction details > > The following list contains the revision numbers of each file that was > corrected in FreeBSD. > > Branch Revision > Path > - ------------------------------------------------------------------------- > RELENG_5 > src/crypto/openssl/ssl/ssl_lib.c 1.1.1.11.2.3 > RELENG_5_5 > src/UPDATING 1.342.2.35.2.16 > src/sys/conf/newvers.sh 1.62.2.21.2.18 > src/crypto/openssl/ssl/ssl_lib.c 1.1.1.11.2.1.4.2 > RELENG_6 > src/crypto/openssl/ssl/ssl_lib.c 1.1.1.12.2.2 > RELENG_6_2 > src/UPDATING 1.416.2.29.2.11 > src/sys/conf/newvers.sh 1.69.2.13.2.11 > src/crypto/openssl/ssl/ssl_lib.c 1.1.1.12.2.1.2.1 > RELENG_6_1 > src/UPDATING 1.416.2.22.2.22 > src/sys/conf/newvers.sh 1.69.2.11.2.22 > src/crypto/openssl/ssl/ssl_lib.c 1.1.1.12.6.2 > - ------------------------------------------------------------------------- > > VII. References > > http://marc.info/?l=bugtraq&m=119091888624735 > http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-3738 > http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-5135 > > The latest revision of this advisory is available at > http://security.FreeBSD.org/advisories/FreeBSD-SA-07:08.openssl.asc > -----BEGIN PGP SIGNATURE----- > Version: GnuPG v1.4.7 (FreeBSD) > > iD8DBQFHBA+HFdaIBMps37IRAtTQAJ0bFBZt7DVJzhQkUcu7VdNS7Kj8cwCeMQaS > cNFjW3j2eolZhlee83l3blo= > =zwC2 > -----END PGP SIGNATURE----- > _______________________________________________ > freebsd-security-notifications@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-security-notifications > To unsubscribe, send any mail to "freebsd-security-notifications-unsubscribe@freebsd.org"
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