[RHSA-2008:0885-01] Important: kernel security and bug fix update

[news 28]

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Red Hat Security Advisory

 

Synopsis: Important: kernel security and bug fix update

Advisory ID: RHSA-2008:0885-01

Product: Red Hat Enterprise Linux

Advisory URL: https://rhn.redhat.com/errata/RHSA-2008-0885.html

Issue date: 2008-09-24

CVE Names: CVE-2008-2931 CVE-2008-3275 CVE-2007-6417

CVE-2007-6716 CVE-2008-3272

=====================================================================

 

1. Summary:

 

Updated kernel packages that fix various security issues and several bugs

are now available for Red Hat Enterprise Linux 5.

 

This update has been rated as having important security impact by the Red

Hat Security Response Team.

 

2. Relevant releases/architectures:

 

Red Hat Enterprise Linux Desktop (v. 5 client) - i386, noarch, x86_64

Red Hat Enterprise Linux (v. 5 server) - i386, ia64, noarch, ppc, s390x, x86_64

 

3. Description:

 

The kernel packages contain the Linux kernel, the core of any Linux

operating system.

 

Security fixes:

 

* a missing capability check was found in the Linux kernel do_change_type

routine. This could allow a local unprivileged user to gain privileged

access or cause a denial of service. (CVE-2008-2931, Important)

 

* a flaw was found in the Linux kernel Direct-IO implementation. This could

allow a local unprivileged user to cause a denial of service.

(CVE-2007-6716, Important)

 

* Tobias Klein reported a missing check in the Linux kernel Open Sound

System (OSS) implementation. This deficiency could lead to a possible

information leak. (CVE-2008-3272, Moderate)

 

* a deficiency was found in the Linux kernel virtual filesystem (VFS)

implementation. This could allow a local unprivileged user to attempt file

creation within deleted directories, possibly causing a denial of service.

(CVE-2008-3275, Moderate)

 

* a flaw was found in the Linux kernel tmpfs implementation. This could

allow a local unprivileged user to read sensitive information from the

kernel. (CVE-2007-6417, Moderate)

 

Bug fixes:

 

* when copying a small IPoIB packet from the original skb it was received

in to a new, smaller skb, all fields in the new skb were not initialized.

This may have caused a kernel oops.

 

* previously, data may have been written beyond the end of an array,

causing memory corruption on certain systems, resulting in hypervisor

crashes during context switching.

 

* a kernel crash may have occurred on heavily-used Samba servers after 24

to 48 hours of use.

 

* under heavy memory pressure, pages may have been swapped out from under

the SGI Altix XPMEM driver, causing silent data corruption in the kernel.

 

* the ixgbe driver is untested, but support was advertised for the Intel

82598 network card. If this card was present when the ixgbe driver was

loaded, a NULL pointer dereference and a panic occurred.

 

* on certain systems, if multiple InfiniBand queue pairs simultaneously

fell into an error state, an overrun may have occurred, stopping traffic.

 

* with bridging, when forward delay was set to zero, setting an interface

to the forwarding state was delayed by one or possibly two timers,

depending on whether STP was enabled. This may have caused long delays in

moving an interface to the forwarding state. This issue caused packet loss

when migrating virtual machines, preventing them from being migrated

without interrupting applications.

 

* on certain multinode systems, IPMI device nodes were created in reverse

order of where they physically resided.

 

* process hangs may have occurred while accessing application data files

via asynchronous direct I/O system calls.

 

* on systems with heavy lock traffic, a possible deadlock may have caused

anything requiring locks over NFS to stop, or be very slow. Errors such as

"lockd: server [iP] not responding, timed out" were logged on client

systems.

 

* unexpected removals of USB devices may have caused a NULL pointer

dereference in kobject_get_path.

 

* on Itanium-based systems, repeatedly creating and destroying Windows

guests may have caused Dom0 to crash, due to the "XENMEM_add_to_physmap"

hypercall, used by para-virtualized drivers on HVM, being SMP-unsafe.

 

* when using an MD software RAID, crashes may have occurred when devices

were removed or changed while being iterated through. Correct locking is

now used.

 

* break requests had no effect when using "Serial Over Lan" with the Intel

82571 network card. This issue may have caused log in problems.

 

* on Itanium-based systems, module_free() referred the first parameter

before checking it was valid. This may have caused a kernel panic when

exiting SystemTap.

 

Red Hat Enterprise Linux 5 users are advised to upgrade to these updated

packages, which contain backported patches to resolve these issues.

 

4. 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

 

5. Bugs fixed (http://bugzilla.redhat.com/):

 

426081 - CVE-2007-6417 tmpfs: restore missing clear_highpage (kernels from 2.6.11 up)

447913 - LTC43854-trap 700 Program check on uli05, pc: c000000000323910: .skb_under_panic+0x50/0x68 [rhel-5.2.z]

454388 - CVE-2008-2931 kernel: missing check before setting mount propagation

455768 - Guest OS install causes host machine to crash

456235 - [RHEL5] Kernel panic triggered by smbd

456946 - Silent memory corruption with xpmem

457484 - ixgbe panics system when installing RHEL 5.2 with 82598AT (copper 10 gig) adapter

457858 - CVE-2008-3275 Linux kernel local filesystem DoS

457995 - CVE-2008-3272 kernel snd_seq_oss_synth_make_info leak

458779 - LTC44570-Event Queue overflow on eHCA adapters

458783 - lost packets when live migrating

459071 - LTC41679-IPMI device nodes created in reverse order on multinode systems

459082 - process hangs in async direct IO / possible race between dio_bio_end_aio() and dio_await_one() ?

459083 - deadlock when lockd tries to take f_sema that it already has

459776 - [stratus 5.2.z bug] kernel NULL pointer dereference in kobject_get_path

459780 - [iA64] Fix SMP-unsafe with XENMEM_add_to_physmap on HVM

460128 - [NEC/Stratus 5.2.z bug] various crashes in md - rdev removed in the middle of ITERATE_RDEV

460509 - SysRq handling issue in serial driver

460639 - kprobes remove causing kernel panic on ia64 with 2.6.18-92.1.10.el5 kernel

461082 - CVE-2007-6716 kernel: dio: zero struct dio with kzalloc instead of manually

 

6. Package List:

 

Red Hat Enterprise Linux Desktop (v. 5 client):

 

Source:

ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/kernel-2.6.18-92.1.13.el5.src.rpm

 

i386:

kernel-2.6.18-92.1.13.el5.i686.rpm

kernel-PAE-2.6.18-92.1.13.el5.i686.rpm

kernel-PAE-debuginfo-2.6.18-92.1.13.el5.i686.rpm

kernel-PAE-devel-2.6.18-92.1.13.el5.i686.rpm

kernel-debug-2.6.18-92.1.13.el5.i686.rpm

kernel-debug-debuginfo-2.6.18-92.1.13.el5.i686.rpm

kernel-debug-devel-2.6.18-92.1.13.el5.i686.rpm

kernel-debuginfo-2.6.18-92.1.13.el5.i686.rpm

kernel-debuginfo-common-2.6.18-92.1.13.el5.i686.rpm

kernel-devel-2.6.18-92.1.13.el5.i686.rpm

kernel-headers-2.6.18-92.1.13.el5.i386.rpm

kernel-xen-2.6.18-92.1.13.el5.i686.rpm

kernel-xen-debuginfo-2.6.18-92.1.13.el5.i686.rpm

kernel-xen-devel-2.6.18-92.1.13.el5.i686.rpm

 

noarch:

kernel-doc-2.6.18-92.1.13.el5.noarch.rpm

 

x86_64:

kernel-2.6.18-92.1.13.el5.x86_64.rpm

kernel-debug-2.6.18-92.1.13.el5.x86_64.rpm

kernel-debug-debuginfo-2.6.18-92.1.13.el5.x86_64.rpm

kernel-debug-devel-2.6.18-92.1.13.el5.x86_64.rpm

kernel-debuginfo-2.6.18-92.1.13.el5.x86_64.rpm

kernel-debuginfo-common-2.6.18-92.1.13.el5.x86_64.rpm

kernel-devel-2.6.18-92.1.13.el5.x86_64.rpm

kernel-headers-2.6.18-92.1.13.el5.x86_64.rpm

kernel-xen-2.6.18-92.1.13.el5.x86_64.rpm

kernel-xen-debuginfo-2.6.18-92.1.13.el5.x86_64.rpm

kernel-xen-devel-2.6.18-92.1.13.el5.x86_64.rpm

 

Red Hat Enterprise Linux (v. 5 server):

 

Source:

ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/os/SRPMS/kernel-2.6.18-92.1.13.el5.src.rpm

 

i386:

kernel-2.6.18-92.1.13.el5.i686.rpm

kernel-PAE-2.6.18-92.1.13.el5.i686.rpm

kernel-PAE-debuginfo-2.6.18-92.1.13.el5.i686.rpm

kernel-PAE-devel-2.6.18-92.1.13.el5.i686.rpm

kernel-debug-2.6.18-92.1.13.el5.i686.rpm

kernel-debug-debuginfo-2.6.18-92.1.13.el5.i686.rpm

kernel-debug-devel-2.6.18-92.1.13.el5.i686.rpm

kernel-debuginfo-2.6.18-92.1.13.el5.i686.rpm

kernel-debuginfo-common-2.6.18-92.1.13.el5.i686.rpm

kernel-devel-2.6.18-92.1.13.el5.i686.rpm

kernel-headers-2.6.18-92.1.13.el5.i386.rpm

kernel-xen-2.6.18-92.1.13.el5.i686.rpm

kernel-xen-debuginfo-2.6.18-92.1.13.el5.i686.rpm

kernel-xen-devel-2.6.18-92.1.13.el5.i686.rpm

 

ia64:

kernel-2.6.18-92.1.13.el5.ia64.rpm

kernel-debug-2.6.18-92.1.13.el5.ia64.rpm

kernel-debug-debuginfo-2.6.18-92.1.13.el5.ia64.rpm

kernel-debug-devel-2.6.18-92.1.13.el5.ia64.rpm

kernel-debuginfo-2.6.18-92.1.13.el5.ia64.rpm

kernel-debuginfo-common-2.6.18-92.1.13.el5.ia64.rpm

kernel-devel-2.6.18-92.1.13.el5.ia64.rpm

kernel-headers-2.6.18-92.1.13.el5.ia64.rpm

kernel-xen-2.6.18-92.1.13.el5.ia64.rpm

kernel-xen-debuginfo-2.6.18-92.1.13.el5.ia64.rpm

kernel-xen-devel-2.6.18-92.1.13.el5.ia64.rpm

 

noarch:

kernel-doc-2.6.18-92.1.13.el5.noarch.rpm

 

ppc:

kernel-2.6.18-92.1.13.el5.ppc64.rpm

kernel-debug-2.6.18-92.1.13.el5.ppc64.rpm

kernel-debug-debuginfo-2.6.18-92.1.13.el5.ppc64.rpm

kernel-debug-devel-2.6.18-92.1.13.el5.ppc64.rpm

kernel-debuginfo-2.6.18-92.1.13.el5.ppc64.rpm

kernel-debuginfo-common-2.6.18-92.1.13.el5.ppc64.rpm

kernel-devel-2.6.18-92.1.13.el5.ppc64.rpm

kernel-headers-2.6.18-92.1.13.el5.ppc.rpm

kernel-headers-2.6.18-92.1.13.el5.ppc64.rpm

kernel-kdump-2.6.18-92.1.13.el5.ppc64.rpm

kernel-kdump-debuginfo-2.6.18-92.1.13.el5.ppc64.rpm

kernel-kdump-devel-2.6.18-92.1.13.el5.ppc64.rpm

 

s390x:

kernel-2.6.18-92.1.13.el5.s390x.rpm

kernel-debug-2.6.18-92.1.13.el5.s390x.rpm

kernel-debug-debuginfo-2.6.18-92.1.13.el5.s390x.rpm

kernel-debug-devel-2.6.18-92.1.13.el5.s390x.rpm

kernel-debuginfo-2.6.18-92.1.13.el5.s390x.rpm

kernel-debuginfo-common-2.6.18-92.1.13.el5.s390x.rpm

kernel-devel-2.6.18-92.1.13.el5.s390x.rpm

kernel-headers-2.6.18-92.1.13.el5.s390x.rpm

kernel-kdump-2.6.18-92.1.13.el5.s390x.rpm

kernel-kdump-debuginfo-2.6.18-92.1.13.el5.s390x.rpm

kernel-kdump-devel-2.6.18-92.1.13.el5.s390x.rpm

 

x86_64:

kernel-2.6.18-92.1.13.el5.x86_64.rpm

kernel-debug-2.6.18-92.1.13.el5.x86_64.rpm

kernel-debug-debuginfo-2.6.18-92.1.13.el5.x86_64.rpm

kernel-debug-devel-2.6.18-92.1.13.el5.x86_64.rpm

kernel-debuginfo-2.6.18-92.1.13.el5.x86_64.rpm

kernel-debuginfo-common-2.6.18-92.1.13.el5.x86_64.rpm

kernel-devel-2.6.18-92.1.13.el5.x86_64.rpm

kernel-headers-2.6.18-92.1.13.el5.x86_64.rpm

kernel-xen-2.6.18-92.1.13.el5.x86_64.rpm

kernel-xen-debuginfo-2.6.18-92.1.13.el5.x86_64.rpm

kernel-xen-devel-2.6.18-92.1.13.el5.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://www.redhat.com/security/team/key/#package

 

7. References:

 

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-2931

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-3275

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-6417

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-6716

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-3272

http://www.redhat.com/security/updates/classification/#important

 

8. Contact:

 

The Red Hat security contact is . More contact

details at https://www.redhat.com/security/team/contact/

 

Copyright 2008 Red Hat, Inc.

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