From secure@conectiva.com.br Tue Apr 8 03:00:12 2003 From: Conectiva Updates To: conectiva-updates@papaleguas.conectiva.com.br, lwn@lwn.net, bugtraq@securityfocus.com, security-alerts@linuxsecurity.com, linsec@lists.seifried.org Date: Mon, 7 Apr 2003 17:13:52 -0300 Subject: [CLA-2003:619] Conectiva Security Announcement - zlib -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 - -------------------------------------------------------------------------- CONECTIVA LINUX SECURITY ANNOUNCEMENT - -------------------------------------------------------------------------- PACKAGE : zlib SUMMARY : gzprintf() buffer overflow DATE : 2003-04-07 17:10:00 ID : CLA-2003:619 RELEVANT RELEASES : 6.0, 7.0, 8 - ------------------------------------------------------------------------- DESCRIPTION "zlib"[1] is a compression library used by several programs. Richard Kettlewell discovered[1] a buffer overflow vulnerability[2] in the gzprintf() function provided by zlib. If a program passes unsafe data to this function (e.g. data from remote images or network traffic), it is possible for a remote attacker to execute arbitrary code or to cause a denial of service in such programs. Although hundreds of programs are linked against zlib in Conectiva Linux, the vulnerable function, gzprintf(), is rarely used, which lessens the impact of this vulnerability. The Common Vulnerabilities and Exposures (CVE) project has assigned the name CAN-2003-0107 to this issue. SOLUTION All users should upgrade. Please note that it is necessary to restart services which use the library 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 libz 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 a system reboot. REFERENCES: 1.http://www.gzip.org/zlib/ 2.http://online.securityfocus.com/archive/1/312869 3.http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0107 UPDATED PACKAGES ftp://atualizacoes.conectiva.com.br/6.0/RPMS/zlib-1.1.3-15U60_2cl.i386.rpm ftp://atualizacoes.conectiva.com.br/6.0/RPMS/zlib-devel-1.1.3-15U60_2cl.i386.rpm ftp://atualizacoes.conectiva.com.br/6.0/RPMS/zlib-devel-static-1.1.3-15U60_2cl.i386.rpm ftp://atualizacoes.conectiva.com.br/6.0/SRPMS/zlib-1.1.3-15U60_2cl.src.rpm ftp://atualizacoes.conectiva.com.br/7.0/RPMS/zlib-1.1.3-15U70_2cl.i386.rpm ftp://atualizacoes.conectiva.com.br/7.0/RPMS/zlib-devel-1.1.3-15U70_2cl.i386.rpm ftp://atualizacoes.conectiva.com.br/7.0/RPMS/zlib-devel-static-1.1.3-15U70_2cl.i386.rpm ftp://atualizacoes.conectiva.com.br/7.0/SRPMS/zlib-1.1.3-15U70_2cl.src.rpm ftp://atualizacoes.conectiva.com.br/8/RPMS/zlib-1.1.3-16U80_1cl.i386.rpm ftp://atualizacoes.conectiva.com.br/8/RPMS/zlib-devel-1.1.3-16U80_1cl.i386.rpm ftp://atualizacoes.conectiva.com.br/8/RPMS/zlib-devel-static-1.1.3-16U80_1cl.i386.rpm ftp://atualizacoes.conectiva.com.br/8/SRPMS/zlib-1.1.3-16U80_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 2003 (c) Conectiva Inc. http://www.conectiva.com - ------------------------------------------------------------------------- subscribe: conectiva-updates-subscribe@papaleguas.conectiva.com.br unsubscribe: conectiva-updates-unsubscribe@papaleguas.conectiva.com.br -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.6 (GNU/Linux) Comment: For info see http://www.gnupg.org iD8DBQE+kdv/42jd0JmAcZARAhOVAKC5MvGzhE2yvR4G2QK4eyZsJSJGYACeIkdo t8AHv3DpFy01QyjOSowBe3g= =1raK -----END PGP SIGNATURE-----