-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Important: kernel security and bug fix update Advisory ID: RHSA-2014:0284-01 Product: Red Hat Enterprise Linux Advisory URL: https://rhn.redhat.com/errata/RHSA-2014-0284.html Issue date: 2014-03-11 CVE Names: CVE-2013-2851 CVE-2013-4387 CVE-2013-4470 CVE-2013-4591 CVE-2013-6367 CVE-2013-6368 CVE-2013-6381 ===================================================================== 1. Summary: Updated kernel packages that fix multiple security issues and several bugs are now available for Red Hat Enterprise Linux 6.4 Extended Update Support. 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 Compute Node Optional EUS (v. 6.4) - x86_64 Red Hat Enterprise Linux HPC Node EUS (v. 6.4) - noarch, x86_64 Red Hat Enterprise Linux Server EUS (v. 6.4) - i386, noarch, ppc64, s390x, x86_64 Red Hat Enterprise Linux Server Optional EUS (v. 6.4) - i386, ppc64, s390x, x86_64 3. Description: The kernel packages contain the Linux kernel, the core of any Linux operating system. * A flaw was found in the way the Linux kernel's IPv6 implementation handled certain UDP packets when the UDP Fragmentation Offload (UFO) feature was enabled. A remote attacker could use this flaw to crash the system or, potentially, escalate their privileges on the system. (CVE-2013-4387, Important) * A flaw was found in the way the Linux kernel's TCP/IP protocol suite implementation handled sending of certain UDP packets over sockets that used the UDP_CORK option when the UDP Fragmentation Offload (UFO) feature was enabled on the output device. A local, unprivileged user could use this flaw to cause a denial of service or, potentially, escalate their privileges on the system. (CVE-2013-4470, Important) * A divide-by-zero flaw was found in the apic_get_tmcct() function in KVM's Local Advanced Programmable Interrupt Controller (LAPIC) implementation. A privileged guest user could use this flaw to crash the host. (CVE-2013-6367, Important) * A memory corruption flaw was discovered in the way KVM handled virtual APIC accesses that crossed a page boundary. A local, unprivileged user could use this flaw to crash the system or, potentially, escalate their privileges on the system. (CVE-2013-6368, Important) * A buffer overflow flaw was found in the way the qeth_snmp_command() function in the Linux kernel's QETH network device driver implementation handled SNMP IOCTL requests with an out-of-bounds length. A local, unprivileged user could use this flaw to crash the system or, potentially, escalate their privileges on the system. (CVE-2013-6381, Important) * It was found that the fix for CVE-2012-2375 released via RHSA-2012:1580 accidentally removed a check for small-sized result buffers. A local, unprivileged user with access to an NFSv4 mount with ACL support could use this flaw to crash the system or, potentially, escalate their privileges on the system. (CVE-2013-4591, Moderate) * A format string flaw was found in the Linux kernel's block layer. A privileged, local user could potentially use this flaw to escalate their privileges to kernel level (ring0). (CVE-2013-2851, Low) Red Hat would like to thank Hannes Frederic Sowa for reporting CVE-2013-4470, Andrew Honig of Google for reporting CVE-2013-6367 and CVE-2013-6368, and Kees Cook for reporting CVE-2013-2851. This update also fixes several bugs. Documentation for these changes will be available shortly from the Technical Notes document linked to in the References section. All kernel users are advised to 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 https://access.redhat.com/site/articles/11258 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 (https://bugzilla.redhat.com/): 969515 - CVE-2013-2851 kernel: block: passing disk names as format strings 1011927 - CVE-2013-4387 Kernel: net: IPv6: panic when UFO=On for an interface 1023477 - CVE-2013-4470 Kernel: net: memory corruption with UDP_CORK and UFO 1031678 - CVE-2013-4591 kernel: nfs: missing check for buffer length in __nfs4_get_acl_uncached 1032207 - CVE-2013-6367 kvm: division by zero in apic_get_tmcct() 1032210 - CVE-2013-6368 kvm: cross page vapic_addr access 1033600 - CVE-2013-6381 Kernel: qeth: buffer overflow in snmp ioctl 6. Package List: Red Hat Enterprise Linux HPC Node EUS (v. 6.4): Source: kernel-2.6.32-358.37.1.el6.src.rpm noarch: kernel-doc-2.6.32-358.37.1.el6.noarch.rpm kernel-firmware-2.6.32-358.37.1.el6.noarch.rpm x86_64: kernel-2.6.32-358.37.1.el6.x86_64.rpm kernel-debug-2.6.32-358.37.1.el6.x86_64.rpm kernel-debug-debuginfo-2.6.32-358.37.1.el6.x86_64.rpm kernel-debug-devel-2.6.32-358.37.1.el6.x86_64.rpm kernel-debuginfo-2.6.32-358.37.1.el6.x86_64.rpm kernel-debuginfo-common-x86_64-2.6.32-358.37.1.el6.x86_64.rpm kernel-devel-2.6.32-358.37.1.el6.x86_64.rpm kernel-headers-2.6.32-358.37.1.el6.x86_64.rpm perf-2.6.32-358.37.1.el6.x86_64.rpm perf-debuginfo-2.6.32-358.37.1.el6.x86_64.rpm python-perf-debuginfo-2.6.32-358.37.1.el6.x86_64.rpm Red Hat Enterprise Linux Compute Node Optional EUS (v. 6.4): Source: kernel-2.6.32-358.37.1.el6.src.rpm x86_64: kernel-debug-debuginfo-2.6.32-358.37.1.el6.x86_64.rpm kernel-debuginfo-2.6.32-358.37.1.el6.x86_64.rpm kernel-debuginfo-common-x86_64-2.6.32-358.37.1.el6.x86_64.rpm perf-debuginfo-2.6.32-358.37.1.el6.x86_64.rpm python-perf-2.6.32-358.37.1.el6.x86_64.rpm python-perf-debuginfo-2.6.32-358.37.1.el6.x86_64.rpm Red Hat Enterprise Linux Server EUS (v. 6.4): Source: kernel-2.6.32-358.37.1.el6.src.rpm i386: kernel-2.6.32-358.37.1.el6.i686.rpm kernel-debug-2.6.32-358.37.1.el6.i686.rpm kernel-debug-debuginfo-2.6.32-358.37.1.el6.i686.rpm kernel-debug-devel-2.6.32-358.37.1.el6.i686.rpm kernel-debuginfo-2.6.32-358.37.1.el6.i686.rpm kernel-debuginfo-common-i686-2.6.32-358.37.1.el6.i686.rpm kernel-devel-2.6.32-358.37.1.el6.i686.rpm kernel-headers-2.6.32-358.37.1.el6.i686.rpm perf-2.6.32-358.37.1.el6.i686.rpm perf-debuginfo-2.6.32-358.37.1.el6.i686.rpm python-perf-debuginfo-2.6.32-358.37.1.el6.i686.rpm noarch: kernel-doc-2.6.32-358.37.1.el6.noarch.rpm kernel-firmware-2.6.32-358.37.1.el6.noarch.rpm ppc64: kernel-2.6.32-358.37.1.el6.ppc64.rpm kernel-bootwrapper-2.6.32-358.37.1.el6.ppc64.rpm kernel-debug-2.6.32-358.37.1.el6.ppc64.rpm kernel-debug-debuginfo-2.6.32-358.37.1.el6.ppc64.rpm kernel-debug-devel-2.6.32-358.37.1.el6.ppc64.rpm kernel-debuginfo-2.6.32-358.37.1.el6.ppc64.rpm kernel-debuginfo-common-ppc64-2.6.32-358.37.1.el6.ppc64.rpm kernel-devel-2.6.32-358.37.1.el6.ppc64.rpm kernel-headers-2.6.32-358.37.1.el6.ppc64.rpm perf-2.6.32-358.37.1.el6.ppc64.rpm perf-debuginfo-2.6.32-358.37.1.el6.ppc64.rpm python-perf-debuginfo-2.6.32-358.37.1.el6.ppc64.rpm s390x: kernel-2.6.32-358.37.1.el6.s390x.rpm kernel-debug-2.6.32-358.37.1.el6.s390x.rpm kernel-debug-debuginfo-2.6.32-358.37.1.el6.s390x.rpm kernel-debug-devel-2.6.32-358.37.1.el6.s390x.rpm kernel-debuginfo-2.6.32-358.37.1.el6.s390x.rpm kernel-debuginfo-common-s390x-2.6.32-358.37.1.el6.s390x.rpm kernel-devel-2.6.32-358.37.1.el6.s390x.rpm kernel-headers-2.6.32-358.37.1.el6.s390x.rpm kernel-kdump-2.6.32-358.37.1.el6.s390x.rpm kernel-kdump-debuginfo-2.6.32-358.37.1.el6.s390x.rpm kernel-kdump-devel-2.6.32-358.37.1.el6.s390x.rpm perf-2.6.32-358.37.1.el6.s390x.rpm perf-debuginfo-2.6.32-358.37.1.el6.s390x.rpm python-perf-debuginfo-2.6.32-358.37.1.el6.s390x.rpm x86_64: kernel-2.6.32-358.37.1.el6.x86_64.rpm kernel-debug-2.6.32-358.37.1.el6.x86_64.rpm kernel-debug-debuginfo-2.6.32-358.37.1.el6.x86_64.rpm kernel-debug-devel-2.6.32-358.37.1.el6.x86_64.rpm kernel-debuginfo-2.6.32-358.37.1.el6.x86_64.rpm kernel-debuginfo-common-x86_64-2.6.32-358.37.1.el6.x86_64.rpm kernel-devel-2.6.32-358.37.1.el6.x86_64.rpm kernel-headers-2.6.32-358.37.1.el6.x86_64.rpm perf-2.6.32-358.37.1.el6.x86_64.rpm perf-debuginfo-2.6.32-358.37.1.el6.x86_64.rpm python-perf-debuginfo-2.6.32-358.37.1.el6.x86_64.rpm Red Hat Enterprise Linux Server Optional EUS (v. 6.4): Source: kernel-2.6.32-358.37.1.el6.src.rpm i386: kernel-debug-debuginfo-2.6.32-358.37.1.el6.i686.rpm kernel-debuginfo-2.6.32-358.37.1.el6.i686.rpm kernel-debuginfo-common-i686-2.6.32-358.37.1.el6.i686.rpm perf-debuginfo-2.6.32-358.37.1.el6.i686.rpm python-perf-2.6.32-358.37.1.el6.i686.rpm python-perf-debuginfo-2.6.32-358.37.1.el6.i686.rpm ppc64: kernel-debug-debuginfo-2.6.32-358.37.1.el6.ppc64.rpm kernel-debuginfo-2.6.32-358.37.1.el6.ppc64.rpm kernel-debuginfo-common-ppc64-2.6.32-358.37.1.el6.ppc64.rpm perf-debuginfo-2.6.32-358.37.1.el6.ppc64.rpm python-perf-2.6.32-358.37.1.el6.ppc64.rpm python-perf-debuginfo-2.6.32-358.37.1.el6.ppc64.rpm s390x: kernel-debug-debuginfo-2.6.32-358.37.1.el6.s390x.rpm kernel-debuginfo-2.6.32-358.37.1.el6.s390x.rpm kernel-debuginfo-common-s390x-2.6.32-358.37.1.el6.s390x.rpm kernel-kdump-debuginfo-2.6.32-358.37.1.el6.s390x.rpm perf-debuginfo-2.6.32-358.37.1.el6.s390x.rpm python-perf-2.6.32-358.37.1.el6.s390x.rpm python-perf-debuginfo-2.6.32-358.37.1.el6.s390x.rpm x86_64: kernel-debug-debuginfo-2.6.32-358.37.1.el6.x86_64.rpm kernel-debuginfo-2.6.32-358.37.1.el6.x86_64.rpm kernel-debuginfo-common-x86_64-2.6.32-358.37.1.el6.x86_64.rpm perf-debuginfo-2.6.32-358.37.1.el6.x86_64.rpm python-perf-2.6.32-358.37.1.el6.x86_64.rpm python-perf-debuginfo-2.6.32-358.37.1.el6.x86_64.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://access.redhat.com/security/team/key/#package 7. References: https://www.redhat.com/security/data/cve/CVE-2013-2851.html https://www.redhat.com/security/data/cve/CVE-2013-4387.html https://www.redhat.com/security/data/cve/CVE-2013-4470.html https://www.redhat.com/security/data/cve/CVE-2013-4591.html https://www.redhat.com/security/data/cve/CVE-2013-6367.html https://www.redhat.com/security/data/cve/CVE-2013-6368.html https://www.redhat.com/security/data/cve/CVE-2013-6381.html https://access.redhat.com/security/updates/classification/#important https://access.redhat.com/site/documentation/en-US/Red_Hat_Enterprise_Linux/6/html/6.4_Technical_Notes/kernel.html 8. Contact: The Red Hat security contact is . More contact details at https://access.redhat.com/security/team/contact/ Copyright 2014 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.4 (GNU/Linux) iD8DBQFTH0f0XlSAg2UNWIIRAqHiAJ46CxiI0DA1FctbzJTMVLZFZbpZ9gCgwwHT slECbQg168dtNFeJ3F18qYI= =gSQ/ -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://www.redhat.com/mailman/listinfo/rhsa-announce