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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2010.1043 Important: kernel security and bug fix update 15 November 2010 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: kernel Publisher: Red Hat Operating System: Red Hat Enterprise Linux AS/ES/WS 3 Impact/Access: Root Compromise -- Existing Account Execute Arbitrary Code/Commands -- Remote with User Interaction Denial of Service -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2010-3081 CVE-2010-2240 CVE-2010-1188 CVE-2009-4536 CVE-2009-3620 CVE-2009-3080 Reference: ESB-2010.0736 ESB-2010.0060 ESB-2010.0058 ESB-2010.0015 ESB-2009.1467 ESB-2010.0291.2 Original Bulletin: https://rhn.redhat.com/errata/RHSA-2010-0882.html - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Important: kernel security and bug fix update Advisory ID: RHSA-2010:0882-01 Product: Red Hat Enterprise Linux Advisory URL: https://rhn.redhat.com/errata/RHSA-2010-0882.html Issue date: 2010-11-12 CVE Names: CVE-2009-3080 CVE-2009-3620 CVE-2009-4536 CVE-2010-1188 CVE-2010-2240 CVE-2010-3081 ===================================================================== 1. Summary: Updated kernel packages that fix several security issues and one bug are now available for Red Hat Enterprise Linux 3 Extended Life Cycle Support (ELS). The Red Hat Security Response Team has rated this update as having important security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section. 2. Relevant releases/architectures: Red Hat Enterprise Linux AS (v. 3 ELS) - i386 Red Hat Enterprise Linux ES (v. 3 ELS) - i386 3. Description: The kernel packages contain the Linux kernel, the core of any Linux operating system. This update fixes the following security issues: * An array index error was found in the gdth driver in the Linux kernel. A local user could send a specially-crafted IOCTL request that would cause a denial of service or, possibly, privilege escalation. (CVE-2009-3080, Important) * NULL pointer dereference flaws were found in the r128 driver in the Linux kernel. Checks to test if the Concurrent Command Engine state was initialized were missing in private IOCTL functions. An attacker could use these flaws to cause a local denial of service or escalate their privileges. (CVE-2009-3620, Important) * A flaw was found in the Intel PRO/1000 Linux driver, e1000, in the Linux kernel. A remote attacker using packets larger than the MTU could bypass the existing fragment check, resulting in partial, invalid frames being passed to the network stack. This flaw could also possibly be used to trigger a remote denial of service. (CVE-2009-4536, Important) * A use-after-free flaw was found in the tcp_rcv_state_process() function in the Linux kernel TCP/IP protocol suite implementation. If a system using IPv6 had the IPV6_PKTINFO option set on a listening socket, a remote attacker could send an IPv6 packet to that system, causing a kernel panic (denial of service). (CVE-2010-1188, Important) * When an application has a stack overflow, the stack could silently overwrite another memory mapped area instead of a segmentation fault occurring, which could cause an application to execute arbitrary code, possibly leading to privilege escalation. It is known that the X Window System server can be used to trigger this flaw. (CVE-2010-2240, Important) * The compat_alloc_user_space() function in the Linux kernel 32/64-bit compatibility layer implementation was missing sanity checks. This function could be abused in other areas of the Linux kernel. On 64-bit systems, a local, unprivileged user could use this flaw to escalate their privileges. (CVE-2010-3081, Important) Red Hat would like to thank the X.Org security team for reporting the CVE-2010-2240 issue, with upstream acknowledging Rafal Wojtczuk as the original reporter; and Ben Hawkes for reporting the CVE-2010-3081 issue. This update also fixes the following bug: * The RHSA-2009:1550 kernel update introduced a regression that prevented certain custom kernel modules from loading, failing with "unresolved symbol" errors. This update corrects this issue, allowing the affected modules to load as expected. (BZ#556909) Users should upgrade to these updated packages, which contain backported patches to correct these issues. The system must be rebooted for this update to take effect. 4. Solution: Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at http://kbase.redhat.com/faq/docs/DOC-11259 To install kernel packages manually, use "rpm -ivh [package]". Do not use "rpm -Uvh" as that will remove the running kernel binaries from your system. You may use "rpm -e" to remove old kernels after determining that the new kernel functions properly on your system. 5. Bugs fixed (http://bugzilla.redhat.com/): 529597 - CVE-2009-3620 kernel: r128 IOCTL NULL pointer dereferences when CCE state is uninitialised 539414 - CVE-2009-3080 kernel: gdth: Prevent negative offsets in ioctl 552126 - CVE-2009-4536 kernel: e1000 issue reported at 26c3 556909 - unresolved symbol sock_recvmsg_Rsmp_4c34ff14 577711 - CVE-2010-1188 kernel: ipv6: skb is unexpectedly freed 606611 - CVE-2010-2240 kernel: mm: keep a guard page below a grow-down stack segment 634457 - CVE-2010-3081 kernel: 64-bit Compatibility Mode Stack Pointer Underflow 6. Package List: Red Hat Enterprise Linux AS (v. 3 ELS): Source: kernel-2.4.21-66.EL.src.rpm i386: kernel-2.4.21-66.EL.athlon.rpm kernel-2.4.21-66.EL.i686.rpm kernel-BOOT-2.4.21-66.EL.i386.rpm kernel-debuginfo-2.4.21-66.EL.athlon.rpm kernel-debuginfo-2.4.21-66.EL.i386.rpm kernel-debuginfo-2.4.21-66.EL.i686.rpm kernel-doc-2.4.21-66.EL.i386.rpm kernel-hugemem-2.4.21-66.EL.i686.rpm kernel-hugemem-unsupported-2.4.21-66.EL.i686.rpm kernel-smp-2.4.21-66.EL.athlon.rpm kernel-smp-2.4.21-66.EL.i686.rpm kernel-smp-unsupported-2.4.21-66.EL.athlon.rpm kernel-smp-unsupported-2.4.21-66.EL.i686.rpm kernel-source-2.4.21-66.EL.i386.rpm kernel-unsupported-2.4.21-66.EL.athlon.rpm kernel-unsupported-2.4.21-66.EL.i686.rpm Red Hat Enterprise Linux ES (v. 3 ELS): Source: kernel-2.4.21-66.EL.src.rpm i386: kernel-2.4.21-66.EL.athlon.rpm kernel-2.4.21-66.EL.i686.rpm kernel-BOOT-2.4.21-66.EL.i386.rpm kernel-debuginfo-2.4.21-66.EL.athlon.rpm kernel-debuginfo-2.4.21-66.EL.i386.rpm kernel-debuginfo-2.4.21-66.EL.i686.rpm kernel-doc-2.4.21-66.EL.i386.rpm kernel-hugemem-2.4.21-66.EL.i686.rpm kernel-hugemem-unsupported-2.4.21-66.EL.i686.rpm kernel-smp-2.4.21-66.EL.athlon.rpm kernel-smp-2.4.21-66.EL.i686.rpm kernel-smp-unsupported-2.4.21-66.EL.athlon.rpm kernel-smp-unsupported-2.4.21-66.EL.i686.rpm kernel-source-2.4.21-66.EL.i386.rpm kernel-unsupported-2.4.21-66.EL.athlon.rpm kernel-unsupported-2.4.21-66.EL.i686.rpm 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 7. References: https://www.redhat.com/security/data/cve/CVE-2009-3080.html https://www.redhat.com/security/data/cve/CVE-2009-3620.html https://www.redhat.com/security/data/cve/CVE-2009-4536.html https://www.redhat.com/security/data/cve/CVE-2010-1188.html https://www.redhat.com/security/data/cve/CVE-2010-2240.html https://www.redhat.com/security/data/cve/CVE-2010-3081.html http://www.redhat.com/security/updates/classification/#important https://access.redhat.com/kb/docs/DOC-40265 http://www.redhat.com/rhel/server/extended_lifecycle_support/ 8. Contact: The Red Hat security contact is <secalert@redhat.com>. More contact details at https://www.redhat.com/security/team/contact/ Copyright 2010 Red Hat, Inc. - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.4 (GNU/Linux) iD8DBQFM3QrWXlSAg2UNWIIRAoRoAKCeqXq98m3zfAgZbR7mi6KuhSsjuACfS8hW hGzOl6G3TKuLORoaC9qF3zQ= =jMer - -----END PGP SIGNATURE----- - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. 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