ID

VAR-200609-0823

CVE

CVE-2006-3738

TITLE

OpenSSL SSLv2 client code fails to properly check for NULL

DESCRIPTION

Buffer overflow in the SSL_get_shared_ciphers function in OpenSSL 0.9.7 before 0.9.7l, 0.9.8 before 0.9.8d, and earlier versions has unspecified impact and remote attack vectors involving a long list of ciphers. A flaw in the OpenSSL library could allow a remote attacker to cause a denial of service on an affected application. Multiple RSA implementations fail to properly handle RSA signatures. This vulnerability may allow an attacker to forge RSA signatures. Successfully exploiting this issue may result in the execution of arbitrary machine code in the context of applications that use the affected library. Failed exploit attempts may crash applications, denying service to legitimate users. A flaw has also been reported in the BN_from_montgomery() function in crypto/bn/bn_mont.c when performing Montgomery multiplication. A local attacker could perform a side channel attack to retrieve the RSA private keys. rPath Security Advisory: 2006-0175-1 Published: 2006-09-28 Products: rPath Linux 1 Rating: Major Exposure Level Classification: Remote Deterministic Unauthorized Access Updated Versions: openssl=/conary.rpath.com@rpl:devel//1/0.9.7f-10.4-1 openssl-scripts=/conary.rpath.com@rpl:devel//1/0.9.7f-10.4-1 References: http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-2937 http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-2940 http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-3738 http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-4343 http://issues.rpath.com/browse/RPL-613 Description: Previous versions of the openssl package are vulnerable to multiple attacks. In particular, any connection that the mysql daemon will accept may be vulnerable. In the default configuration of mysql, that would be a local unauthorized access vulnerability, but mysql can be configured to listen for network connections from remote hosts, which would then enable remote unauthorized access. Any program that calls the SSL_get_shared_ciphers() function may be vulnerable. _______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.grok.org.uk/full-disclosure-charter.html Hosted and sponsored by Secunia - http://secunia.com/ . -----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. 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----- . --WfZ7S8PLGjBY9Voh Content-Type: text/plain; charset=us-ascii Content-Disposition: inline - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200610-11 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: High Title: OpenSSL: Multiple vulnerabilities Date: October 24, 2006 Bugs: #145510 ID: 200610-11 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== OpenSSL contains multiple vulnerabilities including the possible remote execution of arbitrary code. Additionally Dr. Stephen N. Resolution ========== All OpenSSL 0.9.8 users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=dev-libs/openssl-0.9.8d" All OpenSSL 0.9.7 users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=dev-libs/openssl-0.9.7l" References ========== [ 1 ] CVE-2006-2937 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-2937 [ 2 ] CVE-2006-2940 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-2940 [ 3 ] CVE-2006-3738 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-3738 [ 4 ] CVE-2006-4343 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-4343 Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200610-11.xml Concerns? ========= Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at http://bugs.gentoo.org. License ======= Copyright 2006 Gentoo Foundation, Inc; referenced text belongs to its owner(s). The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license. During the parsing of certain invalid ASN1 structures an error condition is mishandled. This can result in an infinite loop which consumes system memory. (CVE-2006-2937) Certain types of public key can take disproportionate amounts of time to process. This could be used by an attacker in a denial of service attack. (CVE-2006-2940) Tavis Ormandy and Will Drewry of the Google Security Team discovered a buffer overflow in the SSL_get_shared_ciphers utility function, used by some applications such as exim and mysql. An attacker could send a list of ciphers that would overrun a buffer. (CVE-2006-3738) Tavis Ormandy and Will Drewry of the Google Security Team discovered a possible DoS in the sslv2 client code. (CVE-2006-4343) Updated packages are patched to address these issues. _______________________________________________________________________ References: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-2937 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-2940 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-3738 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-4343 _______________________________________________________________________ Updated Packages: Mandriva Linux 2006.0: 17e2d82c3f6c0afbf48eccbfbcc17b55 2006.0/i586/libopenssl0.9.7-0.9.7g-2.4.20060mdk.i586.rpm 8c3f89e1900f069d4a4ad3162a9f7d78 2006.0/i586/libopenssl0.9.7-devel-0.9.7g-2.4.20060mdk.i586.rpm 3a68c653ba0339ba99162459385c72e2 2006.0/i586/libopenssl0.9.7-static-devel-0.9.7g-2.4.20060mdk.i586.rpm 8291bde3bd9aa95533aabc07280203b8 2006.0/i586/openssl-0.9.7g-2.4.20060mdk.i586.rpm 52b3fbfc1389bcd73e406d6ff741e9dc 2006.0/SRPMS/openssl-0.9.7g-2.4.20060mdk.src.rpm Mandriva Linux 2006.0/X86_64: b2ce6e6bb7e3114663d3a074d0cc7da5 2006.0/x86_64/lib64openssl0.9.7-0.9.7g-2.4.20060mdk.x86_64.rpm f7c8dbc2eda0c90547d43661454d1068 2006.0/x86_64/lib64openssl0.9.7-devel-0.9.7g-2.4.20060mdk.x86_64.rpm 7c9ebd9f9179f4e93627dcf0f3442335 2006.0/x86_64/lib64openssl0.9.7-static-devel-0.9.7g-2.4.20060mdk.x86_64.rpm 17e2d82c3f6c0afbf48eccbfbcc17b55 2006.0/x86_64/libopenssl0.9.7-0.9.7g-2.4.20060mdk.i586.rpm 8c3f89e1900f069d4a4ad3162a9f7d78 2006.0/x86_64/libopenssl0.9.7-devel-0.9.7g-2.4.20060mdk.i586.rpm 3a68c653ba0339ba99162459385c72e2 2006.0/x86_64/libopenssl0.9.7-static-devel-0.9.7g-2.4.20060mdk.i586.rpm 6ce5832a59b8b67425cb7026ea9dc876 2006.0/x86_64/openssl-0.9.7g-2.4.20060mdk.x86_64.rpm 52b3fbfc1389bcd73e406d6ff741e9dc 2006.0/SRPMS/openssl-0.9.7g-2.4.20060mdk.src.rpm Mandriva Linux 2007.0: 1bfeff47c8d2f6c020c459881be68207 2007.0/i586/libopenssl0.9.8-0.9.8b-2.1mdv2007.0.i586.rpm 1e1a4db54ddfaedb08a6d847422099ff 2007.0/i586/libopenssl0.9.8-devel-0.9.8b-2.1mdv2007.0.i586.rpm 59c80405f33b2e61ffd3cef025635e21 2007.0/i586/libopenssl0.9.8-static-devel-0.9.8b-2.1mdv2007.0.i586.rpm 3a6657970a2e7661bd869d221a69c8da 2007.0/i586/openssl-0.9.8b-2.1mdv2007.0.i586.rpm aad29e57ddceb66105af5d6434de9a62 2007.0/SRPMS/openssl-0.9.8b-2.1mdv2007.0.src.rpm Mandriva Linux 2007.0/X86_64: af679c647d97214244a8423dc1a766b7 2007.0/x86_64/lib64openssl0.9.8-0.9.8b-2.1mdv2007.0.x86_64.rpm d7b1ed07df4115b3bcc3907e00d25a89 2007.0/x86_64/lib64openssl0.9.8-devel-0.9.8b-2.1mdv2007.0.x86_64.rpm 5bd3ece2c0ec7a3201c29fa84e25a75a 2007.0/x86_64/lib64openssl0.9.8-static-devel-0.9.8b-2.1mdv2007.0.x86_64.rpm 9b028020dba009eddbf06eeb8607b87f 2007.0/x86_64/openssl-0.9.8b-2.1mdv2007.0.x86_64.rpm aad29e57ddceb66105af5d6434de9a62 2007.0/SRPMS/openssl-0.9.8b-2.1mdv2007.0.src.rpm Corporate 3.0: c99ea58f6f4959a4c36398cc6b2b4ee2 corporate/3.0/i586/libopenssl0.9.7-0.9.7c-3.6.C30mdk.i586.rpm 98a925c5ba2ecc9d704b1e730035755e corporate/3.0/i586/libopenssl0.9.7-devel-0.9.7c-3.6.C30mdk.i586.rpm 151493a50693e3b9cc67bfafadb9ce42 corporate/3.0/i586/libopenssl0.9.7-static-devel-0.9.7c-3.6.C30mdk.i586.rpm 82b4709bdbb9128746887013a724356a corporate/3.0/i586/openssl-0.9.7c-3.6.C30mdk.i586.rpm a5bdbe6afa52005a734dc18aa951677d corporate/3.0/SRPMS/openssl-0.9.7c-3.6.C30mdk.src.rpm Corporate 3.0/X86_64: 01a922d80d6fc9d1b36dde15ee27747e corporate/3.0/x86_64/lib64openssl0.9.7-0.9.7c-3.6.C30mdk.x86_64.rpm 30268f0b70862d1f5998694ac8b4addc corporate/3.0/x86_64/lib64openssl0.9.7-devel-0.9.7c-3.6.C30mdk.x86_64.rpm e0388ff1efa34ea55d033e95b4e9bb63 corporate/3.0/x86_64/lib64openssl0.9.7-static-devel-0.9.7c-3.6.C30mdk.x86_64.rpm c99ea58f6f4959a4c36398cc6b2b4ee2 corporate/3.0/x86_64/libopenssl0.9.7-0.9.7c-3.6.C30mdk.i586.rpm 83759622f0cc8ea9c0f6d32671283354 corporate/3.0/x86_64/openssl-0.9.7c-3.6.C30mdk.x86_64.rpm a5bdbe6afa52005a734dc18aa951677d corporate/3.0/SRPMS/openssl-0.9.7c-3.6.C30mdk.src.rpm Corporate 4.0: 6d71d2358738be9967b2dfe19d3642f1 corporate/4.0/i586/libopenssl0.9.7-0.9.7g-2.4.20060mlcs4.i586.rpm 22890554d3096ce596eeec7393ee3fcf corporate/4.0/i586/libopenssl0.9.7-devel-0.9.7g-2.4.20060mlcs4.i586.rpm 679fe740859fa35b2bb77b19c4a0e787 corporate/4.0/i586/libopenssl0.9.7-static-devel-0.9.7g-2.4.20060mlcs4.i586.rpm d8477333b67ec3a36ba46c50e6183993 corporate/4.0/i586/openssl-0.9.7g-2.4.20060mlcs4.i586.rpm b65dbbd9fb3d74d302478640476a2cd2 corporate/4.0/SRPMS/openssl-0.9.7g-2.4.20060mlcs4.src.rpm Corporate 4.0/X86_64: 746e5e916d1e05379373138a5db20923 corporate/4.0/x86_64/lib64openssl0.9.7-0.9.7g-2.4.20060mlcs4.x86_64.rpm a2b1d750075a32fe8badbdf1f7febafe corporate/4.0/x86_64/lib64openssl0.9.7-devel-0.9.7g-2.4.20060mlcs4.x86_64.rpm 47c464cf890a004f772c1db3e839fa12 corporate/4.0/x86_64/lib64openssl0.9.7-static-devel-0.9.7g-2.4.20060mlcs4.x86_64.rpm 6d71d2358738be9967b2dfe19d3642f1 corporate/4.0/x86_64/libopenssl0.9.7-0.9.7g-2.4.20060mlcs4.i586.rpm 22890554d3096ce596eeec7393ee3fcf corporate/4.0/x86_64/libopenssl0.9.7-devel-0.9.7g-2.4.20060mlcs4.i586.rpm 679fe740859fa35b2bb77b19c4a0e787 corporate/4.0/x86_64/libopenssl0.9.7-static-devel-0.9.7g-2.4.20060mlcs4.i586.rpm 1030a6124a9fa4fd5a41bdff077301bf corporate/4.0/x86_64/openssl-0.9.7g-2.4.20060mlcs4.x86_64.rpm b65dbbd9fb3d74d302478640476a2cd2 corporate/4.0/SRPMS/openssl-0.9.7g-2.4.20060mlcs4.src.rpm Multi Network Firewall 2.0: 19055eda58e1f75814e594ce7709a710 mnf/2.0/i586/libopenssl0.9.7-0.9.7c-3.6.M20mdk.i586.rpm abfe548617969f619aec5b0e807f1f67 mnf/2.0/i586/libopenssl0.9.7-devel-0.9.7c-3.6.M20mdk.i586.rpm 92e7515c9125367a79fdb490f5b39cd4 mnf/2.0/i586/libopenssl0.9.7-static-devel-0.9.7c-3.6.M20mdk.i586.rpm 847eecb1d07e4cab3d1de1452103c3a0 mnf/2.0/i586/openssl-0.9.7c-3.6.M20mdk.i586.rpm b6b67fa82d7119cde7ab7816aed17059 mnf/2.0/SRPMS/openssl-0.9.7c-3.6.M20mdk.src.rpm _______________________________________________________________________ To upgrade automatically use MandrivaUpdate or urpmi. The verification of md5 checksums and GPG signatures is performed automatically for you. All packages are signed by Mandriva for security. You can obtain the GPG public key of the Mandriva Security Team by executing: gpg --recv-keys --keyserver pgp.mit.edu 0x22458A98 You can view other update advisories for Mandriva Linux at: http://www.mandriva.com/security/advisories If you want to report vulnerabilities, please contact security_(at)_mandriva.com _______________________________________________________________________ Type Bits/KeyID Date User ID pub 1024D/22458A98 2000-07-10 Mandriva Security Team <security*mandriva.com> -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2.2 (GNU/Linux) iD8DBQFFHA4hmqjQ0CJFipgRApknAJ9Ybd8xjfkR+RL1fWEI2Fgn/KIuqACeOH/0 wB09L3fylyiHgrXvSV6VL7A= =/+dm -----END PGP SIGNATURE-----

AFFECTED PRODUCTS