-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ________________________________________________________________________ OpenPKG Security Advisory The OpenPKG Project http://www.openpkg.org/security.html http://www.openpkg.org openpkg-securityat_private openpkgat_private OpenPKG-SA-2002.009 04-Oct-2002 ________________________________________________________________________ Package: apache Vulnerability: denial of service OpenPKG Specific: no Affected Releases: OpenPKG 1.0 OpenPKG 1.1 Affected Packages: <= apache-1.3.22-1.0.4 <= apache-1.3.26-1.1.0 Corrected Packages: >= apache-1.3.22-1.0.5 >= apache-1.3.26-1.1.1 Dependent Packages: none none Description: According to the Apache HTTP Server Project [1][2], there are several remotely exploitable vulnerabilities which could allow an attacker to enact a denial of service against a server. The Common Vulnerabilities and Exposures (CVE) project identified the following three vulnerabilities: 1. CAN-2002-0839 [3]: A vulnerability exists on platforms using System V shared memory based scoreboards. This vulnerability allows an attacker who can execute under the Apache UID to exploit the Apache shared memory scoreboard format and send a signal to any process as root or cause a local denial of service attack. 2. CAN-2002-0840 [4]: Apache is susceptible to a cross site scripting vulnerability in the default 404 page of any web server hosted on a domain that allows wildcard DNS lookups. 3. CAN-2002-0843 [5]: There were some possible overflows in the utility ApacheBench (ab) which could be exploited by a malicious server. Please check whether you are affected by running "<prefix>/bin/rpm -q apache". If you have an affected version of the "apache" package (see above), upgrade it according to the solution below. Remember to also rebuild and reinstall any dependent OpenPKG packages. [6] Solution: Select the updated source RPM appropriate for your OpenPKG release [7][9], fetch it from the OpenPKG FTP service [8][10] or a mirror location, verify its integrity [11], build a corresponding binary RPM from it and update your OpenPKG installation by finally installing the binary RPM [6]. For the latest OpenPKG 1.1 release, perform the following operations to permanently fix the security problem (for other releases adjust accordingly). $ ftp ftp.openpkg.org ftp> bin ftp> cd release/1.1/UPD ftp> get apache-1.3.26-1.1.1.src.rpm ftp> bye $ <prefix>/bin/rpm --checksig apache-1.3.26-1.1.1.src.rpm $ <prefix>/bin/rpm --rebuild apache-1.3.26-1.1.1.src.rpm $ su - # <prefix>/bin/rpm -Fvh <prefix>/RPM/PKG/apache-1.3.26-1.1.1.*.rpm # <prefix>/etc/rc apache stop start ________________________________________________________________________ References: [1] http://httpd.apache.org/ [2] http://www.apache.org/dist/httpd/Announcement.html [3] http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2002-0839 [4] http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2002-0840 [5] http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2002-0843 [6] http://www.openpkg.org/tutorial.html#regular-source [7] ftp://ftp.openpkg.org/release/1.1/UPD/apache-1.3.26-1.1.1.src.rpm [8] ftp://ftp.openpkg.org/release/1.1/UPD/ [9] ftp://ftp.openpkg.org/release/1.0/UPD/apache-1.3.22-1.0.5.src.rpm [10] ftp://ftp.openpkg.org/release/1.0/UPD/ [11] http://www.openpkg.org/security.html#signature ________________________________________________________________________ For security reasons, this advisory was digitally signed with the OpenPGP public key "OpenPKG <openpkgat_private>" (ID 63C4CB9F) of the OpenPKG project which you can find under the official URL http://www.openpkg.org/openpkg.pgp or on http://keyserver.pgp.com/. To check the integrity of this advisory, verify its digital signature by using GnuPG (http://www.gnupg.org/). For example, pipe this message to the command "gpg --verify --keyserver keyserver.pgp.com". ________________________________________________________________________ -----BEGIN PGP SIGNATURE----- Comment: OpenPKG <openpkgat_private> iEYEARECAAYFAj2d8PwACgkQgHWT4GPEy5+q/wCdEeH+NYJKsMJH/Y77Avk1Y/wT NtsAoLyGvajiwgosGOYEoXWpfxHzTirq =OPWn -----END PGP SIGNATURE-----
This archive was generated by hypermail 2b30 : Fri Oct 04 2002 - 14:30:11 PDT