__________________________________________________________ The U.S. Department of Energy Computer Incident Advisory Capability ___ __ __ _ ___ / | /_\ / \___ __|__ / \ \___ __________________________________________________________ INFORMATION BULLETIN OpenAFS Vulnerability [Debian Security Advisory DSA-1458-1] January 11, 2008 19:00 GMT Number S-110 ______________________________________________________________________________ PROBLEM: A race condition in the OpenAFS fileserver allows remote attackers to cause a denial of service (daemon crash) by simultaneously acquiring and giving back file callbacks, which causes the handler for the GiveUpAllCallBacks RPC to perform linked-list operations without the host_glock lock. PLATFORM: Debian GNU/Linux 3.1 (oldstable) and 4.0 (stable) DAMAGE: Allows remote attackers to cause a denial of service (daemon crash) by simultaneously acquiring and giving back file callbacks, which causes the handler for the GiveUpAllCallBacks RPC to perform linked-list operations without the host_glock lock. SOLUTION: Upgrade to the appropriate version. ______________________________________________________________________________ VULNERABILITY The risk is MEDIUM. Allows remote attackers to cause a denial ASSESSMENT: of service (daemon crash. ______________________________________________________________________________ LINKS: CIAC BULLETIN: http://www.ciac.org/ciac/bulletins/s-110.shtml ORIGINAL BULLETIN: http://www.debian.org/security/2008/dsa-1458 CVE: http://www.cve.mitre.org/cgi-bin/cvename.cgi?name= CVE-2007-6599 ______________________________________________________________________________ [***** Start Debian Security Advisory DSA-1458-1 *****] Debian Security Advisory DSA-1458-1 openafs -- programming error Date Reported: 10 Jan 2008 Affected Packages: openafs Vulnerable: Yes Security database references: In the Bugtraq database (at SecurityFocus): BugTraq ID 27132. In Mitre's CVE dictionary: CVE-2007-6599. More information: A race condition in the OpenAFS fileserver allows remote attackers to cause a denial of service (daemon crash) by simultaneously acquiring and giving back file callbacks, which causes the handler for the GiveUpAllCallBacks RPC to perform linked-list operations without the host_glock lock. For the old stable distribution (sarge), this problem has been fixed in version 1.3.81-3sarge3. For the stable distribution (etch), this problem has been fixed in version 1.4.2-6etch1. We recommend that you upgrade your openafs packages. Fixed in: Debian GNU/Linux 3.1 (oldstable) Source: http://security.debian.org/pool/updates/main/o/openafs/openafs_1.3.81-3sarge3.dsc http://security.debian.org/pool/updates/main/o/openafs/openafs_1.3.81.orig.tar.gz http://security.debian.org/pool/updates/main/o/openafs/openafs_1.3.81-3sarge3.diff.gz Architecture-independent component: http://security.debian.org/pool/updates/main/o/openafs/openafs-modules-source_1.3.81-3sarge3_all.deb Alpha: http://security.debian.org/pool/updates/main/o/openafs/openafs-fileserver_1.3.81-3sarge3_alpha.deb http://security.debian.org/pool/updates/main/o/openafs/libpam-openafs-kaserver_1.3.81-3sarge3_alpha.deb http://security.debian.org/pool/updates/main/o/openafs/openafs-dbserver_1.3.81-3sarge3_alpha.deb http://security.debian.org/pool/updates/main/o/openafs/openafs-kpasswd_1.3.81-3sarge3_alpha.deb http://security.debian.org/pool/updates/main/o/openafs/openafs-client_1.3.81-3sarge3_alpha.deb http://security.debian.org/pool/updates/main/o/openafs/libopenafs-dev_1.3.81-3sarge3_alpha.deb AMD64: http://security.debian.org/pool/updates/main/o/openafs/libopenafs-dev_1.3.81-3sarge3_amd64.deb http://security.debian.org/pool/updates/main/o/openafs/openafs-dbserver_1.3.81-3sarge3_amd64.deb http://security.debian.org/pool/updates/main/o/openafs/openafs-kpasswd_1.3.81-3sarge3_amd64.deb http://security.debian.org/pool/updates/main/o/openafs/libpam-openafs-kaserver_1.3.81-3sarge3_amd64.deb http://security.debian.org/pool/updates/main/o/openafs/openafs-client_1.3.81-3sarge3_amd64.deb http://security.debian.org/pool/updates/main/o/openafs/openafs-fileserver_1.3.81-3sarge3_amd64.deb HP Precision: http://security.debian.org/pool/updates/main/o/openafs/openafs-kpasswd_1.3.81-3sarge3_hppa.deb http://security.debian.org/pool/updates/main/o/openafs/openafs-fileserver_1.3.81-3sarge3_hppa.deb http://security.debian.org/pool/updates/main/o/openafs/openafs-client_1.3.81-3sarge3_hppa.deb http://security.debian.org/pool/updates/main/o/openafs/openafs-dbserver_1.3.81-3sarge3_hppa.deb http://security.debian.org/pool/updates/main/o/openafs/libopenafs-dev_1.3.81-3sarge3_hppa.deb http://security.debian.org/pool/updates/main/o/openafs/libpam-openafs-kaserver_1.3.81-3sarge3_hppa.deb Intel IA-32: http://security.debian.org/pool/updates/main/o/openafs/libpam-openafs-kaserver_1.3.81-3sarge3_i386.deb http://security.debian.org/pool/updates/main/o/openafs/openafs-fileserver_1.3.81-3sarge3_i386.deb http://security.debian.org/pool/updates/main/o/openafs/openafs-client_1.3.81-3sarge3_i386.deb http://security.debian.org/pool/updates/main/o/openafs/libopenafs-dev_1.3.81-3sarge3_i386.deb http://security.debian.org/pool/updates/main/o/openafs/openafs-kpasswd_1.3.81-3sarge3_i386.deb http://security.debian.org/pool/updates/main/o/openafs/openafs-dbserver_1.3.81-3sarge3_i386.deb Intel IA-64: http://security.debian.org/pool/updates/main/o/openafs/openafs-dbserver_1.3.81-3sarge3_ia64.deb http://security.debian.org/pool/updates/main/o/openafs/openafs-client_1.3.81-3sarge3_ia64.deb http://security.debian.org/pool/updates/main/o/openafs/openafs-kpasswd_1.3.81-3sarge3_ia64.deb http://security.debian.org/pool/updates/main/o/openafs/libpam-openafs-kaserver_1.3.81-3sarge3_ia64.deb http://security.debian.org/pool/updates/main/o/openafs/libopenafs-dev_1.3.81-3sarge3_ia64.deb http://security.debian.org/pool/updates/main/o/openafs/openafs-fileserver_1.3.81-3sarge3_ia64.deb PowerPC: http://security.debian.org/pool/updates/main/o/openafs/openafs-dbserver_1.3.81-3sarge3_powerpc.deb http://security.debian.org/pool/updates/main/o/openafs/openafs-kpasswd_1.3.81-3sarge3_powerpc.deb http://security.debian.org/pool/updates/main/o/openafs/openafs-client_1.3.81-3sarge3_powerpc.deb http://security.debian.org/pool/updates/main/o/openafs/openafs-fileserver_1.3.81-3sarge3_powerpc.deb http://security.debian.org/pool/updates/main/o/openafs/libopenafs-dev_1.3.81-3sarge3_powerpc.deb http://security.debian.org/pool/updates/main/o/openafs/libpam-openafs-kaserver_1.3.81-3sarge3_powerpc.deb IBM S/390: http://security.debian.org/pool/updates/main/o/openafs/openafs-dbserver_1.3.81-3sarge3_s390.deb http://security.debian.org/pool/updates/main/o/openafs/openafs-kpasswd_1.3.81-3sarge3_s390.deb http://security.debian.org/pool/updates/main/o/openafs/libpam-openafs-kaserver_1.3.81-3sarge3_s390.deb http://security.debian.org/pool/updates/main/o/openafs/openafs-client_1.3.81-3sarge3_s390.deb http://security.debian.org/pool/updates/main/o/openafs/libopenafs-dev_1.3.81-3sarge3_s390.deb http://security.debian.org/pool/updates/main/o/openafs/openafs-fileserver_1.3.81-3sarge3_s390.deb Sun Sparc: http://security.debian.org/pool/updates/main/o/openafs/libpam-openafs-kaserver_1.3.81-3sarge3_sparc.deb http://security.debian.org/pool/updates/main/o/openafs/openafs-client_1.3.81-3sarge3_sparc.deb http://security.debian.org/pool/updates/main/o/openafs/libopenafs-dev_1.3.81-3sarge3_sparc.deb http://security.debian.org/pool/updates/main/o/openafs/openafs-fileserver_1.3.81-3sarge3_sparc.deb http://security.debian.org/pool/updates/main/o/openafs/openafs-kpasswd_1.3.81-3sarge3_sparc.deb http://security.debian.org/pool/updates/main/o/openafs/openafs-dbserver_1.3.81-3sarge3_sparc.deb Debian GNU/Linux 4.0 (stable) Source: http://security.debian.org/pool/updates/main/o/openafs/openafs_1.4.2-6etch1.diff.gz http://security.debian.org/pool/updates/main/o/openafs/openafs_1.4.2.orig.tar.gz http://security.debian.org/pool/updates/main/o/openafs/openafs_1.4.2-6etch1.dsc Architecture-independent component: http://security.debian.org/pool/updates/main/o/openafs/openafs-doc_1.4.2-6etch1_all.deb http://security.debian.org/pool/updates/main/o/openafs/openafs-modules-source_1.4.2-6etch1_all.deb Alpha: http://security.debian.org/pool/updates/main/o/openafs/openafs-client_1.4.2-6etch1_alpha.deb http://security.debian.org/pool/updates/main/o/openafs/openafs-fileserver_1.4.2-6etch1_alpha.deb http://security.debian.org/pool/updates/main/o/openafs/openafs-krb5_1.4.2-6etch1_alpha.deb http://security.debian.org/pool/updates/main/o/openafs/openafs-kpasswd_1.4.2-6etch1_alpha.deb http://security.debian.org/pool/updates/main/o/openafs/libopenafs-dev_1.4.2-6etch1_alpha.deb http://security.debian.org/pool/updates/main/o/openafs/openafs-dbg_1.4.2-6etch1_alpha.deb http://security.debian.org/pool/updates/main/o/openafs/openafs-dbserver_1.4.2-6etch1_alpha.deb http://security.debian.org/pool/updates/main/o/openafs/libpam-openafs-kaserver_1.4.2-6etch1_alpha.deb AMD64: http://security.debian.org/pool/updates/main/o/openafs/libpam-openafs-kaserver_1.4.2-6etch1_amd64.deb http://security.debian.org/pool/updates/main/o/openafs/openafs-dbg_1.4.2-6etch1_amd64.deb http://security.debian.org/pool/updates/main/o/openafs/libopenafs-dev_1.4.2-6etch1_amd64.deb http://security.debian.org/pool/updates/main/o/openafs/openafs-krb5_1.4.2-6etch1_amd64.deb http://security.debian.org/pool/updates/main/o/openafs/openafs-client_1.4.2-6etch1_amd64.deb http://security.debian.org/pool/updates/main/o/openafs/openafs-fileserver_1.4.2-6etch1_amd64.deb http://security.debian.org/pool/updates/main/o/openafs/openafs-kpasswd_1.4.2-6etch1_amd64.deb http://security.debian.org/pool/updates/main/o/openafs/openafs-dbserver_1.4.2-6etch1_amd64.deb HP Precision: http://security.debian.org/pool/updates/main/o/openafs/openafs-kpasswd_1.4.2-6etch1_hppa.deb http://security.debian.org/pool/updates/main/o/openafs/openafs-dbg_1.4.2-6etch1_hppa.deb http://security.debian.org/pool/updates/main/o/openafs/openafs-dbserver_1.4.2-6etch1_hppa.deb http://security.debian.org/pool/updates/main/o/openafs/openafs-fileserver_1.4.2-6etch1_hppa.deb http://security.debian.org/pool/updates/main/o/openafs/libopenafs-dev_1.4.2-6etch1_hppa.deb http://security.debian.org/pool/updates/main/o/openafs/openafs-krb5_1.4.2-6etch1_hppa.deb http://security.debian.org/pool/updates/main/o/openafs/libpam-openafs-kaserver_1.4.2-6etch1_hppa.deb http://security.debian.org/pool/updates/main/o/openafs/openafs-client_1.4.2-6etch1_hppa.deb Intel IA-32: http://security.debian.org/pool/updates/main/o/openafs/openafs-dbserver_1.4.2-6etch1_i386.deb http://security.debian.org/pool/updates/main/o/openafs/openafs-dbg_1.4.2-6etch1_i386.deb http://security.debian.org/pool/updates/main/o/openafs/openafs-kpasswd_1.4.2-6etch1_i386.deb http://security.debian.org/pool/updates/main/o/openafs/openafs-client_1.4.2-6etch1_i386.deb http://security.debian.org/pool/updates/main/o/openafs/libopenafs-dev_1.4.2-6etch1_i386.deb http://security.debian.org/pool/updates/main/o/openafs/libpam-openafs-kaserver_1.4.2-6etch1_i386.deb http://security.debian.org/pool/updates/main/o/openafs/openafs-fileserver_1.4.2-6etch1_i386.deb http://security.debian.org/pool/updates/main/o/openafs/openafs-krb5_1.4.2-6etch1_i386.deb Intel IA-64: http://security.debian.org/pool/updates/main/o/openafs/openafs-dbg_1.4.2-6etch1_ia64.deb http://security.debian.org/pool/updates/main/o/openafs/openafs-kpasswd_1.4.2-6etch1_ia64.deb http://security.debian.org/pool/updates/main/o/openafs/openafs-krb5_1.4.2-6etch1_ia64.deb http://security.debian.org/pool/updates/main/o/openafs/openafs-dbserver_1.4.2-6etch1_ia64.deb http://security.debian.org/pool/updates/main/o/openafs/openafs-fileserver_1.4.2-6etch1_ia64.deb http://security.debian.org/pool/updates/main/o/openafs/libpam-openafs-kaserver_1.4.2-6etch1_ia64.deb http://security.debian.org/pool/updates/main/o/openafs/libopenafs-dev_1.4.2-6etch1_ia64.deb http://security.debian.org/pool/updates/main/o/openafs/openafs-client_1.4.2-6etch1_ia64.deb PowerPC: http://security.debian.org/pool/updates/main/o/openafs/libopenafs-dev_1.4.2-6etch1_powerpc.deb http://security.debian.org/pool/updates/main/o/openafs/openafs-krb5_1.4.2-6etch1_powerpc.deb http://security.debian.org/pool/updates/main/o/openafs/openafs-dbg_1.4.2-6etch1_powerpc.deb http://security.debian.org/pool/updates/main/o/openafs/openafs-client_1.4.2-6etch1_powerpc.deb http://security.debian.org/pool/updates/main/o/openafs/openafs-kpasswd_1.4.2-6etch1_powerpc.deb http://security.debian.org/pool/updates/main/o/openafs/openafs-dbserver_1.4.2-6etch1_powerpc.deb http://security.debian.org/pool/updates/main/o/openafs/openafs-fileserver_1.4.2-6etch1_powerpc.deb http://security.debian.org/pool/updates/main/o/openafs/libpam-openafs-kaserver_1.4.2-6etch1_powerpc.deb IBM S/390: http://security.debian.org/pool/updates/main/o/openafs/openafs-dbg_1.4.2-6etch1_s390.deb http://security.debian.org/pool/updates/main/o/openafs/openafs-krb5_1.4.2-6etch1_s390.deb http://security.debian.org/pool/updates/main/o/openafs/openafs-client_1.4.2-6etch1_s390.deb http://security.debian.org/pool/updates/main/o/openafs/openafs-kpasswd_1.4.2-6etch1_s390.deb http://security.debian.org/pool/updates/main/o/openafs/openafs-dbserver_1.4.2-6etch1_s390.deb http://security.debian.org/pool/updates/main/o/openafs/libpam-openafs-kaserver_1.4.2-6etch1_s390.deb http://security.debian.org/pool/updates/main/o/openafs/openafs-fileserver_1.4.2-6etch1_s390.deb http://security.debian.org/pool/updates/main/o/openafs/libopenafs-dev_1.4.2-6etch1_s390.deb Sun Sparc: http://security.debian.org/pool/updates/main/o/openafs/libpam-openafs-kaserver_1.4.2-6etch1_sparc.deb http://security.debian.org/pool/updates/main/o/openafs/openafs-fileserver_1.4.2-6etch1_sparc.deb http://security.debian.org/pool/updates/main/o/openafs/openafs-client_1.4.2-6etch1_sparc.deb http://security.debian.org/pool/updates/main/o/openafs/openafs-dbg_1.4.2-6etch1_sparc.deb http://security.debian.org/pool/updates/main/o/openafs/libopenafs-dev_1.4.2-6etch1_sparc.deb http://security.debian.org/pool/updates/main/o/openafs/openafs-dbserver_1.4.2-6etch1_sparc.deb http://security.debian.org/pool/updates/main/o/openafs/openafs-kpasswd_1.4.2-6etch1_sparc.deb http://security.debian.org/pool/updates/main/o/openafs/openafs-krb5_1.4.2-6etch1_sparc.deb MD5 checksums of the listed files are available in the original advisory. [***** End Debian Security Advisory DSA-1458-1 *****] _______________________________________________________________________________ CIAC wishes to acknowledge the contributions of Debian for the information contained in this bulletin. _______________________________________________________________________________ CIAC, the Computer Incident Advisory Capability, is the computer security incident response team for the U.S. Department of Energy (DOE) and the emergency backup response team for the National Institutes of Health (NIH). CIAC is located at the Lawrence Livermore National Laboratory in Livermore, California. CIAC is also a founding member of FIRST, the Forum of Incident Response and Security Teams, a global organization established to foster cooperation and coordination among computer security teams worldwide. CIAC services are available to DOE, DOE contractors, and the NIH. 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Neither the United States Government nor the University of California nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial products, process, or service by trade name, trademark, manufacturer, or otherwise, does not necessarily constitute or imply its endorsement, recommendation or favoring by the United States Government or the University of California. The views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or the University of California, and shall not be used for advertising or product endorsement purposes. 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