__________________________________________________________ The U.S. Department of Energy Computer Incident Advisory Capability ___ __ __ _ ___ / | /_\ / \___ __|__ / \ \___ __________________________________________________________ INFORMATION BULLETIN Kernel Security and Bug Fix Update [Red Hat RHSA:2007:0376-2] June 14, 2007 19:00 GMT Number R-276 [REVISED 16 Aug 2007] [REVISED 26 Feb 2008] ______________________________________________________________________________ PROBLEM: There are several security and bug fix vulnerabilities in kernel packages. PLATFORM: RHEL Desktop Workstation (v. 5 client) Red Hat Desktop (v. 3) Red Hat Enterprise Linux (v. 5 server) Red Hat Enterprise Linux AS, ES, WS (v. 3) Red Hat Enterprise Linux Desktop (v. 5 client) Debian GNU/Linux (4.0) and 3.1 (oldstable) DAMAGE: A local user may trigger an information leak. SOLUTION: Upgrade to the appropriate version. ______________________________________________________________________________ VULNERABILITY The risk is LOW. A local user may trigger an information leak. ASSESSMENT: ______________________________________________________________________________ LINKS: CIAC BULLETIN: http://www.ciac.org/ciac/bulletins/r-276.shtml ORIGINAL BULLETIN: https://rhn.redhat.com/errata/RHSA-2007-0376.html ADDITIONAL LINKS: http://www.debian.org/security/2007/dsa-1356 http://www.debian.org/security/2007/dsa-1503 http://www.debian.org/security/2007/dsa-1504 https://rhn.redhat.com/errata/RHSA-2007-0671.html CVE: http://www.cve.mitre.org/cgi-bin/cvename.cgi?name= CVE-2006-7203 CVE-2007-1353 CVE-2007-2453 CVE-2007-2525 ______________________________________________________________________________ REVISION HISTORY: 08/16/2007 - revised R-276 to add links to Debian Security Advisory DSA-1356-1 for Debian GNU/Linux 4.0 (etch) and Red Hat RHSA-2007:0671-2 for Red Hat Desktop (v. 3) and Red Hat Enterprise Linux AS, ES, WS (v. 3). 02/26/20008 - revised R-276 to add links to Debian Security Advisories DSA-1503-1 and DSA-1504-1 for Debian GNU/Linux 3.1 (oldstable). [***** Start Red Hat RHSA:2007:0376-2 *****] Important: kernel security and bug fix update Advisory: RHSA-2007:0376-2 Type: Security Advisory Severity: Important Issued on: 2007-06-14 Last updated on: 2007-06-14 Affected Products: RHEL Desktop Workstation (v. 5 client) Red Hat Enterprise Linux (v. 5 server) Red Hat Enterprise Linux Desktop (v. 5 client) OVAL: com.redhat.rhsa-20070376.xml CVEs (cve.mitre.org): CVE-2006-7203 CVE-2007-1353 CVE-2007-2453 CVE-2007-2525 Details Updated kernel packages that fix security issues and bugs in the Red Hat Enterprise Linux 5 kernel are now available. This update has been rated as having important security impact by the Red Hat Security Response Team. The Linux kernel handles the basic functions of the operating system. These new kernel packages contain fixes for the following security issues: * a flaw in the mount handling routine for 64-bit systems that allowed a local user to cause denial of service (CVE-2006-7203, Important). * a flaw in the PPP over Ethernet implementation that allowed a remote user to cause a denial of service (CVE-2007-2525, Important). * a flaw in the Bluetooth subsystem that allowed a local user to trigger an information leak (CVE-2007-1353, Low). * a bug in the random number generator that prevented the manual seeding of the entropy pool (CVE-2007-2453, Low). In addition to the security issues described above, fixes for the following have been included: * a race condition between ext3_link/unlink that could create an orphan inode list corruption. * a bug in the e1000 driver that could lead to a watchdog timeout panic. Red Hat Enterprise Linux 5 users are advised to upgrade to these packages, which contain backported patches to correct these issues. Solution Before applying this update, make sure that all previously-released errata relevant to your system have been applied. This update is available via Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at http://kbase.redhat.com/faq/FAQ_58_10188 Updated packages RHEL Desktop Workstation (v. 5 client) -------------------------------------------------------------------------------- IA-32: kernel-PAE-devel-2.6.18-8.1.6.el5.i686.rpm 584699e4fe6d117e44f7e05b2fdd6ab9 kernel-devel-2.6.18-8.1.6.el5.i686.rpm a86e33c65793ab34921b82f144811b2e kernel-xen-devel-2.6.18-8.1.6.el5.i686.rpm 9c793133f00941476dcaa77b2e768b0e x86_64: kernel-devel-2.6.18-8.1.6.el5.x86_64.rpm dbe4f7c67bb11ae6861db4f887b53053 kernel-xen-devel-2.6.18-8.1.6.el5.x86_64.rpm a3fe6cd0914e123d38dfe43c30d40ddc Red Hat Enterprise Linux (v. 5 server) -------------------------------------------------------------------------------- SRPMS: kernel-2.6.18-8.1.6.el5.src.rpm ca4c1316fbd95a8d49f904e7bccc945e IA-32: kernel-2.6.18-8.1.6.el5.i686.rpm 751a0967b7267cdc841786d07535f043 kernel-PAE-2.6.18-8.1.6.el5.i686.rpm 972cbf91bd3a6d44f6ec8076a533d9af kernel-PAE-devel-2.6.18-8.1.6.el5.i686.rpm 584699e4fe6d117e44f7e05b2fdd6ab9 kernel-devel-2.6.18-8.1.6.el5.i686.rpm a86e33c65793ab34921b82f144811b2e kernel-doc-2.6.18-8.1.6.el5.noarch.rpm f26ab19937282b8e62402fa0e69dcafd kernel-headers-2.6.18-8.1.6.el5.i386.rpm 48d4505991b2366c786568543cb8ec2f kernel-xen-2.6.18-8.1.6.el5.i686.rpm da0cec315cfa6fe94146db555055fda3 kernel-xen-devel-2.6.18-8.1.6.el5.i686.rpm 9c793133f00941476dcaa77b2e768b0e IA-64: kernel-2.6.18-8.1.6.el5.ia64.rpm a7912a5558ec0173c0fdfee5fd2863bf kernel-devel-2.6.18-8.1.6.el5.ia64.rpm 1311e18b2680a77fdca62c2ab49632f6 kernel-doc-2.6.18-8.1.6.el5.noarch.rpm f26ab19937282b8e62402fa0e69dcafd kernel-headers-2.6.18-8.1.6.el5.ia64.rpm 74b7ea13777122bf411be76b0a1144f8 kernel-xen-2.6.18-8.1.6.el5.ia64.rpm 42009c041ffe6a26596ab4816ea3abce kernel-xen-devel-2.6.18-8.1.6.el5.ia64.rpm f8155ee4c63caad60eb508883d4c7dda PPC: kernel-2.6.18-8.1.6.el5.ppc64.rpm 1a69e468f30d703ffeb6ef773e1dbe59 kernel-devel-2.6.18-8.1.6.el5.ppc64.rpm b78b15d609855fe10466f4533b8f6310 kernel-doc-2.6.18-8.1.6.el5.noarch.rpm f26ab19937282b8e62402fa0e69dcafd kernel-headers-2.6.18-8.1.6.el5.ppc.rpm e406e68cbf4f7b5930e7e3149caa2235 kernel-headers-2.6.18-8.1.6.el5.ppc64.rpm b3337ae1d970c7a95238d3e413d2bc6e kernel-kdump-2.6.18-8.1.6.el5.ppc64.rpm 748ae09ed90bebb5f5ccf72bf6c5c91a kernel-kdump-devel-2.6.18-8.1.6.el5.ppc64.rpm b69e9cad8402e47baac4e29b689a3872 s390x: kernel-2.6.18-8.1.6.el5.s390x.rpm 0a4967dea91440f8d06d98841d2b2273 kernel-devel-2.6.18-8.1.6.el5.s390x.rpm a477294269e511f48ef78e9e114a2047 kernel-doc-2.6.18-8.1.6.el5.noarch.rpm f26ab19937282b8e62402fa0e69dcafd kernel-headers-2.6.18-8.1.6.el5.s390x.rpm 24d34019d943bac327c5baecd6ab6bdd x86_64: kernel-2.6.18-8.1.6.el5.x86_64.rpm cfad289b0ece8e9fa7b630d7187b6346 kernel-devel-2.6.18-8.1.6.el5.x86_64.rpm dbe4f7c67bb11ae6861db4f887b53053 kernel-doc-2.6.18-8.1.6.el5.noarch.rpm f26ab19937282b8e62402fa0e69dcafd kernel-headers-2.6.18-8.1.6.el5.x86_64.rpm c9da8f3c701a49d5dfb10b6c81cb3166 kernel-xen-2.6.18-8.1.6.el5.x86_64.rpm a15f021f85dfd7146116e96165b3b13b kernel-xen-devel-2.6.18-8.1.6.el5.x86_64.rpm a3fe6cd0914e123d38dfe43c30d40ddc Red Hat Enterprise Linux Desktop (v. 5 client) -------------------------------------------------------------------------------- SRPMS: kernel-2.6.18-8.1.6.el5.src.rpm ca4c1316fbd95a8d49f904e7bccc945e IA-32: kernel-2.6.18-8.1.6.el5.i686.rpm 751a0967b7267cdc841786d07535f043 kernel-PAE-2.6.18-8.1.6.el5.i686.rpm 972cbf91bd3a6d44f6ec8076a533d9af kernel-doc-2.6.18-8.1.6.el5.noarch.rpm f26ab19937282b8e62402fa0e69dcafd kernel-headers-2.6.18-8.1.6.el5.i386.rpm 48d4505991b2366c786568543cb8ec2f kernel-xen-2.6.18-8.1.6.el5.i686.rpm da0cec315cfa6fe94146db555055fda3 x86_64: kernel-2.6.18-8.1.6.el5.x86_64.rpm cfad289b0ece8e9fa7b630d7187b6346 kernel-doc-2.6.18-8.1.6.el5.noarch.rpm f26ab19937282b8e62402fa0e69dcafd kernel-headers-2.6.18-8.1.6.el5.x86_64.rpm c9da8f3c701a49d5dfb10b6c81cb3166 kernel-xen-2.6.18-8.1.6.el5.x86_64.rpm a15f021f85dfd7146116e96165b3b13b (The unlinked packages above are only available from the Red Hat Network) Bugs fixed (see bugzilla for more information) 238048 - watchdog timeout panic in e1000 driver 240456 - CVE-2006-7203 oops in compat_sys_mount() when data pointer is NULL 241862 - CVE-2007-1353 Bluetooth setsockopt() information leaks 241863 - CVE-2007-2525 PPPoE socket PPPIOCGCHAN denial of service 241888 - CVE-2007-2453 Slightly degraded pool mixing for entropy extraction References http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-7203 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-1353 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-2453 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-2525 http://www.redhat.com/security/updates/classification/#important -------------------------------------------------------------------------------- These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from: https://www.redhat.com/security/team/key/#package The Red Hat security contact is secalert@redhat.com. More contact details at http://www.redhat.com/security/team/contact/ [***** End Red Hat RHSA:2007:0376-2 *****] _______________________________________________________________________________ CIAC wishes to acknowledge the contributions of Red Hat 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. CIAC can be contacted at: Voice: +1 925-422-8193 (7x24) FAX: +1 925-423-8002 STU-III: +1 925-423-2604 E-mail: ciac@ciac.org Previous CIAC notices, anti-virus software, and other information are available from the CIAC Computer Security Archive. World Wide Web: http://www.ciac.org/ Anonymous FTP: ftp.ciac.org PLEASE NOTE: Many users outside of the DOE, ESnet, and NIH computing communities receive CIAC bulletins. If you are not part of these communities, please contact your agency's response team to report incidents. Your agency's team will coordinate with CIAC. The Forum of Incident Response and Security Teams (FIRST) is a world-wide organization. A list of FIRST member organizations and their constituencies can be obtained via WWW at http://www.first.org/. This document was prepared as an account of work sponsored by an agency of the United States Government. 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. LAST 10 CIAC BULLETINS ISSUED (Previous bulletins available from CIAC) R-266: Security Vulnerability in How xscreensaver(1) Interacts with GNOME Assistive Technology R-267: Security Notice for CA Products Implementing the Anti-Virus Engine R-268: Vulnerability in Win 32 API (935839) R-269: Cumulative Security Update for Outlook Express and Windows Mail (929123) R-270: Cumulative Security Update for Internet Explorer (933566) R-271: Vulnerability in the Windows Schannel Security Package (935840) R-272: Vulnerabilities in Microsoft Visio (927051) R-273: Vulnerability in Windows Vista (931213) R-274: Mozilla Firefox Vulnerability R-275: OpenOffice.org Heap Overflow