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Message-ID: <200309302144.SAA19333@frajuto.distro.conectiva> Date: Tue, 30 Sep 2003 18:44:32 -0300 From: Conectiva Updates <secure@...ectiva.com.br> To: conectiva-updates@...aleguas.conectiva.com.br, lwn@....net, bugtraq@...urityfocus.com, security-alerts@...uxsecurity.com, linsec@...ts.seifried.org Subject: [CLA-2003:751] Conectiva Security Announcement - openssl -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 - -------------------------------------------------------------------------- CONECTIVA LINUX SECURITY ANNOUNCEMENT - -------------------------------------------------------------------------- PACKAGE : openssl SUMMARY : Remote vulnerabilities DATE : 2003-09-30 18:40:00 ID : CLA-2003:751 RELEVANT RELEASES : 7.0, 8, 9 - ------------------------------------------------------------------------- DESCRIPTION OpenSSL[1] implements the Secure Sockets Layer (SSL v2/v3) and Transport Layer Security (TLS v1) protocols as well as full-strength general purpose cryptography functions. It is used (as a library) by several projects, like Apache, OpenSSH, Bind, OpenLDAP and many others clients and servers programs. NISCC[2] developed a test suit to verify the behavior of SSL and TLS implementations when presented with malformed client certificates. As a result of this test, the following vulnerabilities[3,4] were found in the OpenSSL implementation: - Vulnerabilities in the handling of malformed ASN.1 tags (CAN-2003-0543[5] and CAN-2003-0544[6]). Because of a flaw in the handling of ASN.1 tag values, an out-of-bounds read can be triggered in some situations. A remote attacker can exploit these vulnerabilities to cause a denial of service condition. - Stack corruption in the handling of rejected ASN.1 encodings (CAN-2003-0545[7]). A remote attacker may exploit this vulnerability to cause a denial of service condition and potentially execute arbitrary code. This vulnerability does not affect the OpenSSL versions distributed with Conectiva Linux 7.0 and 8 (OpenSSL-0.9.6). Additionally, this update includes fixes for a bug which causes OpenSSL to parse a client certificate when it should reject it as a protocol error. SOLUTION It is recommended that all users upgrade their openssl packages. Please note that it is necessary to restart services which use the library (such as the apache web server with SSL enabled) so that the new, fixed, version is used. A list of such applications can be obtained after the upgrade with the following command: lsof | grep libssl The first column will contain the name of the application that needs to be restarted. If there is any doubt about which application has to be restarted or how to do it, we recommend that the system be rebooted. REFERENCES 1.http://www.openssl.org 2.http://www.niscc.gov.uk/aboutniscc/index.htm 3.http://www.uniras.gov.uk/vuls/2003/006489/openssl.htm 4.http://www.openssl.org/news/secadv_20030930.txt 5.http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0543 6.http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0544 7.http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0545 UPDATED PACKAGES ftp://atualizacoes.conectiva.com.br/7.0/RPMS/openssl-0.9.6a-3U70_7cl.i386.rpm ftp://atualizacoes.conectiva.com.br/7.0/RPMS/openssl-devel-0.9.6a-3U70_7cl.i386.rpm ftp://atualizacoes.conectiva.com.br/7.0/RPMS/openssl-devel-static-0.9.6a-3U70_7cl.i386.rpm ftp://atualizacoes.conectiva.com.br/7.0/RPMS/openssl-progs-0.9.6a-3U70_7cl.i386.rpm ftp://atualizacoes.conectiva.com.br/7.0/SRPMS/openssl-0.9.6a-3U70_7cl.src.rpm ftp://atualizacoes.conectiva.com.br/8/RPMS/openssl-0.9.6c-2U80_6cl.i386.rpm ftp://atualizacoes.conectiva.com.br/8/RPMS/openssl-devel-0.9.6c-2U80_6cl.i386.rpm ftp://atualizacoes.conectiva.com.br/8/RPMS/openssl-devel-static-0.9.6c-2U80_6cl.i386.rpm ftp://atualizacoes.conectiva.com.br/8/RPMS/openssl-progs-0.9.6c-2U80_6cl.i386.rpm ftp://atualizacoes.conectiva.com.br/8/SRPMS/openssl-0.9.6c-2U80_6cl.src.rpm ftp://atualizacoes.conectiva.com.br/9/RPMS/openssl0.9.7-0.9.7a-28910U90_1cl.i386.rpm ftp://atualizacoes.conectiva.com.br/9/RPMS/openssl-devel-0.9.7a-28910U90_1cl.i386.rpm ftp://atualizacoes.conectiva.com.br/9/RPMS/openssl-devel-static-0.9.7a-28910U90_1cl.i386.rpm ftp://atualizacoes.conectiva.com.br/9/RPMS/openssl-progs-0.9.7a-28910U90_1cl.i386.rpm ftp://atualizacoes.conectiva.com.br/9/SRPMS/openssl0.9.7-0.9.7a-28910U90_1cl.src.rpm ADDITIONAL INSTRUCTIONS The apt tool can be used to perform RPM packages upgrades: - run: apt-get update - after that, execute: apt-get upgrade Detailed instructions reagarding the use of apt and upgrade examples can be found at http://distro.conectiva.com.br/atualizacoes/#apt?idioma=en - ------------------------------------------------------------------------- All packages are signed with Conectiva's GPG key. The key and instructions on how to import it can be found at http://distro.conectiva.com.br/seguranca/chave/?idioma=en Instructions on how to check the signatures of the RPM packages can be found at http://distro.conectiva.com.br/seguranca/politica/?idioma=en - ------------------------------------------------------------------------- All our advisories and generic update instructions can be viewed at http://distro.conectiva.com.br/atualizacoes/?idioma=en - ------------------------------------------------------------------------- Copyright (c) 2003 Conectiva Inc. http://www.conectiva.com - ------------------------------------------------------------------------- subscribe: conectiva-updates-subscribe@...aleguas.conectiva.com.br unsubscribe: conectiva-updates-unsubscribe@...aleguas.conectiva.com.br -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.6 (GNU/Linux) Comment: For info see http://www.gnupg.org iD8DBQE/efk/42jd0JmAcZARAnPAAJ0VO9e7XHg1kvB9Dkeh0yTRtb3S2gCcCoMn vQzbr/r5WVySCzc0MyW4Ga0= =1BhF -----END PGP SIGNATURE-----
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