-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ________________________________________________________________________
OpenPKG Security Advisory The OpenPKG Project http://www.openpkg.org/security.html http://www.openpkg.org [EMAIL PROTECTED] [EMAIL PROTECTED] OpenPKG-SA-2004.010 07-Apr-2004 ________________________________________________________________________ Package: tcpdump Vulnerability: denial of service OpenPKG Specific: no Affected Releases: Affected Packages: Corrected Packages: OpenPKG CURRENT <= tcpdump-3.8.1-20040207 >= tcpdump-3.8.2-20040330 OpenPKG 2.0 <= tcpdump-3.8.1-2.0.0 >= tcpdump-3.8.1-2.0.1 OpenPKG 1.3 <= tcpdump-3.7.2-1.3.1 >= tcpdump-3.7.2-1.3.2 Dependent Packages: none Description: According to a security advisory published by Rapid7 [0], two vulnerabilities exists in the ISAKMP packet display functions of tcpdump [1]. The Common Vulnerabilities and Exposures (CVE) project has reviewed both problems. CAN-2004-0183 [2] identifies an overflow when displaying ISAKMP delete payloads with large number of SPIs, while CAN-2004-0184 [3] identifies an integer underflow when displaying ISAKMP identification payload. These vulnerabilities appear only when verbose packet display is enabled by running tcpdump with the -v option. Please check whether you are affected by running "<prefix>/bin/rpm -q tcpdump". If you have the "tcpdump" package installed and its version is affected (see above), we recommend that you immediately upgrade it (see Solution). [4][5] Solution: Select the updated source RPM appropriate for your OpenPKG release [6][7], fetch it from the OpenPKG FTP service [8][9] or a mirror location, verify its integrity [10], build a corresponding binary RPM from it [4] and update your OpenPKG installation by applying the binary RPM [5]. For the most current release OpenPKG 2.0, perform the following operations to permanently fix the security problem (for other releases adjust accordingly). $ ftp ftp.openpkg.org ftp> bin ftp> cd release/2.0/UPD ftp> get tcpdump-3.8.1-2.0.1.src.rpm ftp> bye $ <prefix>/bin/rpm -v --checksig tcpdump-3.8.1-2.0.1.src.rpm $ <prefix>/bin/rpm --rebuild tcpdump-3.8.1-2.0.1.src.rpm $ su - # <prefix>/bin/rpm -Fvh <prefix>/RPM/PKG/tcpdump-3.8.1-2.0.1.*.rpm ________________________________________________________________________ References: [0] http://www.rapid7.com/advisories/R7-0017.html [1] http://www.tcpdump.org/ [2] http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0183 [3] http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0184 [4] http://www.openpkg.org/tutorial.html#regular-source [5] http://www.openpkg.org/tutorial.html#regular-binary [6] ftp://ftp.openpkg.org/release/1.3/UPD/tcpdump-3.7.2-1.3.2.src.rpm [7] ftp://ftp.openpkg.org/release/2.0/UPD/tcpdump-3.8.1-2.0.1.src.rpm [8] ftp://ftp.openpkg.org/release/1.3/UPD/ [9] ftp://ftp.openpkg.org/release/2.0/UPD/ [10] http://www.openpkg.org/security.html#signature ________________________________________________________________________ For security reasons, this advisory was digitally signed with the OpenPGP public key "OpenPKG <[EMAIL PROTECTED]>" (ID 63C4CB9F) of the OpenPKG project which you can retrieve from http://pgp.openpkg.org and hkp://pgp.openpkg.org. Follow the instructions on http://pgp.openpkg.org/ for details on how to verify the integrity of this advisory. ________________________________________________________________________ -----BEGIN PGP SIGNATURE----- Comment: OpenPKG <[EMAIL PROTECTED]> iD8DBQFAdGLXgHWT4GPEy58RAmKKAKCwqjk2hr6Lt67NjjFy3mVesKKTiQCeI590 lhEYVCle+2OMsgLZDG4B6Jo= =2I+B -----END PGP SIGNATURE----- ______________________________________________________________________ The OpenPKG Project www.openpkg.org Project Announcement List [EMAIL PROTECTED]
