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Message-ID: <200304221514.MAA25118@frajuto.distro.conectiva> Date: Tue, 22 Apr 2003 12:14:59 -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-2003:629] Conectiva Security Announcement - tcpdump -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 - -------------------------------------------------------------------------- CONECTIVA LINUX SECURITY ANNOUNCEMENT - -------------------------------------------------------------------------- PACKAGE : tcpdump SUMMARY : Several vulnerabilities DATE : 2003-04-22 12:13:00 ID : CLA-2003:629 RELEVANT RELEASES : 6.0, 7.0, 8 - ------------------------------------------------------------------------- DESCRIPTION Tcpdump is a command-line tool for monitoring network traffic. This update fixes several vulnerabilities found in tcpdump: - Infinite loop vulnerability[1] when parsing ISAKMP packets. A remote atacker can cause tcpdump to enter an infinite loop by injecting specially crafted ISAKMP packets (UDP port 500) in the network being monitored by it. This vulnerability was discovered by Andrew Griffiths and iDEFENSE Labs and has the name CVE-2003-0108 assigned[2] by the Common Vulnerabilities and Exposures (CVE) project. - Infinite loop vulnerability when parsing BGP packets. This vulnerability can be exploited in a similar way of the previous one, but using BGP packets. It was discovered by the tcpdump developers. - Buffer overflow when parsing NFS traffic. tcpdump fails to check the boundaries of some buffers when parsing NFS traffic. A remote atacker can exploit this vulnerability to crash the tcpdump process or to potentially execute arbitrary code with the privileges of the user running it (tcpdump is usually run by the root user). This vulnerability was discovered by the tcpdump developers. Even though libpcap is not affected by these vulnerabilities, new packages are being provided for Conectiva Linux 6.0 and 7.0 because they are generated together with tcpdump from the same SRPM package. SOLUTION All tcpdump users should upgrade. Please note that the packages listed in this announcement are available in our FTP servers since March 10th, 2003. REFERENCES: 1.http://www.idefense.com/advisory/02.27.03.txt 2.http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0108 3.http://www.tcpdump.org/tcpdump-changes.txt UPDATED PACKAGES ftp://atualizacoes.conectiva.com.br/6.0/RPMS/libpcap-0.6.2-1U60_3cl.i386.rpm ftp://atualizacoes.conectiva.com.br/6.0/RPMS/libpcap-devel-0.6.2-1U60_3cl.i386.rpm ftp://atualizacoes.conectiva.com.br/6.0/RPMS/libpcap-devel-static-0.6.2-1U60_3cl.i386.rpm ftp://atualizacoes.conectiva.com.br/6.0/RPMS/tcpdump-3.6.2-1U60_3cl.i386.rpm ftp://atualizacoes.conectiva.com.br/6.0/SRPMS/tcpdump-3.6.2-1U60_3cl.src.rpm ftp://atualizacoes.conectiva.com.br/7.0/RPMS/libpcap-0.6.2-1U70_3cl.i386.rpm ftp://atualizacoes.conectiva.com.br/7.0/RPMS/libpcap-devel-0.6.2-1U70_3cl.i386.rpm ftp://atualizacoes.conectiva.com.br/7.0/RPMS/libpcap-devel-static-0.6.2-1U70_3cl.i386.rpm ftp://atualizacoes.conectiva.com.br/7.0/RPMS/tcpdump-3.6.2-1U70_3cl.i386.rpm ftp://atualizacoes.conectiva.com.br/7.0/SRPMS/tcpdump-3.6.2-1U70_3cl.src.rpm ftp://atualizacoes.conectiva.com.br/8/RPMS/tcpdump-3.6.2-3U80_3cl.i386.rpm ftp://atualizacoes.conectiva.com.br/8/SRPMS/tcpdump-3.6.2-3U80_3cl.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+pVxy42jd0JmAcZARAhahAJ9AYyTbUXOSZWM3aapZrcPJ+4MebQCdFi4e b++dTVqz4fCOtGgLe7/3SOY= =34oD -----END PGP SIGNATURE-----
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