====================================================================                   Red Hat Security Advisory

Synopsis:          Important: kernel security and bug fix update
Advisory ID:       RHSA-2009:0326-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2009:0326.html
Issue date:        2009-04-01
CVE Names:         CVE-2008-3528 CVE-2008-5700 CVE-2009-0028 
                   CVE-2009-0269 CVE-2009-0322 CVE-2009-0675 
                   CVE-2009-0676 CVE-2009-0778 
====================================================================
1. Summary:

Updated kernel packages that fix several 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 (v. 5 server) - i386, ia64, noarch, ppc, s390x, x86_64
Red Hat Enterprise Linux Desktop (v. 5 client) - i386, noarch, x86_64

3. Description:

The kernel packages contain the Linux kernel, the core of any Linux
operating system.

Security fixes:

* memory leaks were found on some error paths in the icmp_send()
function in the Linux kernel. This could, potentially, cause the network
connectivity to cease. (CVE-2009-0778, Important)

* Chris Evans reported a deficiency in the clone() system call when called
with the CLONE_PARENT flag. This flaw permits the caller (the parent
process) to indicate an arbitrary signal it wants to receive when its child
process exits. This could lead to a denial of service of the parent
process. (CVE-2009-0028, Moderate)

* an off-by-one underflow flaw was found in the eCryptfs subsystem. This
could potentially cause a local denial of service when the readlink()
function returned an error. (CVE-2009-0269, Moderate)

* a deficiency was found in the Remote BIOS Update (RBU) driver for Dell
systems. This could allow a local, unprivileged user to cause a denial of
service by reading zero bytes from the image_type or packet_size files in
"/sys/devices/platform/dell_rbu/". (CVE-2009-0322, Moderate)

* an inverted logic flaw was found in the SysKonnect FDDI PCI adapter
driver, allowing driver statistics to be reset only when the CAP_NET_ADMIN
capability was absent (local, unprivileged users could reset driver
statistics). (CVE-2009-0675, Moderate)

* the sock_getsockopt() function in the Linux kernel did not properly
initialize a data structure that can be directly returned to user-space
when the getsockopt() function is called with SO_BSDCOMPAT optname set.
This flaw could possibly lead to memory disclosure.
(CVE-2009-0676, Moderate)

* the ext2 and ext3 file system code failed to properly handle corrupted
data structures, leading to a possible local denial of service when read
or write operations were performed on a specially-crafted file system.
(CVE-2008-3528, Low)

* a deficiency was found in the libATA implementation. This could,
potentially, lead to a local denial of service. Note: by default, the
"/dev/sg*" devices are accessible only to the root user.
(CVE-2008-5700, Low)

Bug fixes:

* a bug in aic94xx may have caused kernel panics during boot on some
systems with certain SATA disks. (BZ#485909)

* a word endianness problem in the qla2xx driver on PowerPC-based machines
may have corrupted flash-based devices. (BZ#485908)

* a memory leak in pipe() may have caused a system deadlock. The workaround
in Section 1.5, Known Issues, of the Red Hat Enterprise Linux 5.3 Release
Notes Updates, which involved manually allocating extra file descriptors to
processes calling do_pipe, is no longer necessary. (BZ#481576)

* CPU soft-lockups in the network rate estimator. (BZ#481746)

* bugs in the ixgbe driver caused it to function unreliably on some
systems with 16 or more CPU cores. (BZ#483210)

* the iwl4965 driver may have caused a kernel panic. (BZ#483206)

* a bug caused NFS attributes to not update for some long-lived NFS
mounted file systems. (BZ#483201)

* unmounting a GFS2 file system may have caused a panic. (BZ#485910)

* a bug in ptrace() may have caused a panic when single stepping a target.
(BZ#487394)

* on some 64-bit systems, notsc was incorrectly set at boot, causing slow
gettimeofday() calls. (BZ#488239)

* do_machine_check() cleared all Machine Check Exception (MCE) status
registers, preventing the BIOS from using them to determine the cause of
certain panics and errors. (BZ#490433)

* scaling problems caused performance problems for LAPI applications.
(BZ#489457)

* a panic may have occurred on systems using certain Intel WiFi Link 5000
products when booting with the RF Kill switch on. (BZ#489846)

* the TSC is invariant with C/P/T states, and always runs at constant
frequency from now on. (BZ#489310)

All 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 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

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

459577 - CVE-2008-3528 Linux kernel ext[234] directory corruption denial of service
474495 - CVE-2008-5700 kernel: enforce a minimum SG_IO timeout
479932 - CVE-2009-0028 Linux kernel minor signal handling vulnerability
481576 - multipath test causes memory leak and eventual system deadlock
481604 - CVE-2009-0269 kernel: ecryptfs readlink flaw
481746 - [RHEL 5] gen_estimator deadlock fix
482866 - CVE-2009-0322 kernel: dell_rbu local oops
483201 - NFS problem#3 of IT 106473 - 32-bit jiffy wrap around - NFS inode
483206 - Kernel panic in iwl4965 driver
485163 - CVE-2009-0778 kernel: rt_cache leak leads to lack of network connectivity
485908 - [QLogic 5.4 bug] qla2xx - Word-endian problem programming flash on PPC
485909 - Panic at boot if SATA disk is present
485910 - reproducible panic in debugfs_remove when unmounting gfs2 filesystem
486305 - CVE-2009-0676 kernel: memory disclosure in SO_BSDCOMPAT gsopt
486534 - CVE-2009-0675 kernel: skfp_ioctl inverted logic flaw
487394 - kernel BUG at kernel/ptrace.c:1068
488239 - RHEL5 kernel forces notsc on certain systems [C-state support dependant]
489310 - [Intel 5.4 FEAT] TSC keeps running in C3+
489457 - Lapi takes too long to run
489846 - RHEL 5.3 GA kernel panics when RF Kill is on in 5100/5300 AGN
490433 - RHEL5.3 (x86_64): MCE handler must not clear status registers on fatal conditions

6. Package List:

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

Source:

i386:
kernel-2.6.18-128.1.6.el5.i686.rpm
kernel-PAE-2.6.18-128.1.6.el5.i686.rpm
kernel-PAE-debuginfo-2.6.18-128.1.6.el5.i686.rpm
kernel-PAE-devel-2.6.18-128.1.6.el5.i686.rpm
kernel-debug-2.6.18-128.1.6.el5.i686.rpm
kernel-debug-debuginfo-2.6.18-128.1.6.el5.i686.rpm
kernel-debug-devel-2.6.18-128.1.6.el5.i686.rpm
kernel-debuginfo-2.6.18-128.1.6.el5.i686.rpm
kernel-debuginfo-common-2.6.18-128.1.6.el5.i686.rpm
kernel-devel-2.6.18-128.1.6.el5.i686.rpm
kernel-headers-2.6.18-128.1.6.el5.i386.rpm
kernel-xen-2.6.18-128.1.6.el5.i686.rpm
kernel-xen-debuginfo-2.6.18-128.1.6.el5.i686.rpm
kernel-xen-devel-2.6.18-128.1.6.el5.i686.rpm

noarch:
kernel-doc-2.6.18-128.1.6.el5.noarch.rpm

x86_64:
kernel-2.6.18-128.1.6.el5.x86_64.rpm
kernel-debug-2.6.18-128.1.6.el5.x86_64.rpm
kernel-debug-debuginfo-2.6.18-128.1.6.el5.x86_64.rpm
kernel-debug-devel-2.6.18-128.1.6.el5.x86_64.rpm
kernel-debuginfo-2.6.18-128.1.6.el5.x86_64.rpm
kernel-debuginfo-common-2.6.18-128.1.6.el5.x86_64.rpm
kernel-devel-2.6.18-128.1.6.el5.x86_64.rpm
kernel-headers-2.6.18-128.1.6.el5.x86_64.rpm
kernel-xen-2.6.18-128.1.6.el5.x86_64.rpm
kernel-xen-debuginfo-2.6.18-128.1.6.el5.x86_64.rpm
kernel-xen-devel-2.6.18-128.1.6.el5.x86_64.rpm

Red Hat Enterprise Linux (v. 5 server):

Source:

i386:
kernel-2.6.18-128.1.6.el5.i686.rpm
kernel-PAE-2.6.18-128.1.6.el5.i686.rpm
kernel-PAE-debuginfo-2.6.18-128.1.6.el5.i686.rpm
kernel-PAE-devel-2.6.18-128.1.6.el5.i686.rpm
kernel-debug-2.6.18-128.1.6.el5.i686.rpm
kernel-debug-debuginfo-2.6.18-128.1.6.el5.i686.rpm
kernel-debug-devel-2.6.18-128.1.6.el5.i686.rpm
kernel-debuginfo-2.6.18-128.1.6.el5.i686.rpm
kernel-debuginfo-common-2.6.18-128.1.6.el5.i686.rpm
kernel-devel-2.6.18-128.1.6.el5.i686.rpm
kernel-headers-2.6.18-128.1.6.el5.i386.rpm
kernel-xen-2.6.18-128.1.6.el5.i686.rpm
kernel-xen-debuginfo-2.6.18-128.1.6.el5.i686.rpm
kernel-xen-devel-2.6.18-128.1.6.el5.i686.rpm

ia64:
kernel-2.6.18-128.1.6.el5.ia64.rpm
kernel-debug-2.6.18-128.1.6.el5.ia64.rpm
kernel-debug-debuginfo-2.6.18-128.1.6.el5.ia64.rpm
kernel-debug-devel-2.6.18-128.1.6.el5.ia64.rpm
kernel-debuginfo-2.6.18-128.1.6.el5.ia64.rpm
kernel-debuginfo-common-2.6.18-128.1.6.el5.ia64.rpm
kernel-devel-2.6.18-128.1.6.el5.ia64.rpm
kernel-headers-2.6.18-128.1.6.el5.ia64.rpm
kernel-xen-2.6.18-128.1.6.el5.ia64.rpm
kernel-xen-debuginfo-2.6.18-128.1.6.el5.ia64.rpm
kernel-xen-devel-2.6.18-128.1.6.el5.ia64.rpm

noarch:
kernel-doc-2.6.18-128.1.6.el5.noarch.rpm

ppc:
kernel-2.6.18-128.1.6.el5.ppc64.rpm
kernel-debug-2.6.18-128.1.6.el5.ppc64.rpm
kernel-debug-debuginfo-2.6.18-128.1.6.el5.ppc64.rpm
kernel-debug-devel-2.6.18-128.1.6.el5.ppc64.rpm
kernel-debuginfo-2.6.18-128.1.6.el5.ppc64.rpm
kernel-debuginfo-common-2.6.18-128.1.6.el5.ppc64.rpm
kernel-devel-2.6.18-128.1.6.el5.ppc64.rpm
kernel-headers-2.6.18-128.1.6.el5.ppc.rpm
kernel-headers-2.6.18-128.1.6.el5.ppc64.rpm
kernel-kdump-2.6.18-128.1.6.el5.ppc64.rpm
kernel-kdump-debuginfo-2.6.18-128.1.6.el5.ppc64.rpm
kernel-kdump-devel-2.6.18-128.1.6.el5.ppc64.rpm

s390x:
kernel-2.6.18-128.1.6.el5.s390x.rpm
kernel-debug-2.6.18-128.1.6.el5.s390x.rpm
kernel-debug-debuginfo-2.6.18-128.1.6.el5.s390x.rpm
kernel-debug-devel-2.6.18-128.1.6.el5.s390x.rpm
kernel-debuginfo-2.6.18-128.1.6.el5.s390x.rpm
kernel-debuginfo-common-2.6.18-128.1.6.el5.s390x.rpm
kernel-devel-2.6.18-128.1.6.el5.s390x.rpm
kernel-headers-2.6.18-128.1.6.el5.s390x.rpm
kernel-kdump-2.6.18-128.1.6.el5.s390x.rpm
kernel-kdump-debuginfo-2.6.18-128.1.6.el5.s390x.rpm
kernel-kdump-devel-2.6.18-128.1.6.el5.s390x.rpm

x86_64:
kernel-2.6.18-128.1.6.el5.x86_64.rpm
kernel-debug-2.6.18-128.1.6.el5.x86_64.rpm
kernel-debug-debuginfo-2.6.18-128.1.6.el5.x86_64.rpm
kernel-debug-devel-2.6.18-128.1.6.el5.x86_64.rpm
kernel-debuginfo-2.6.18-128.1.6.el5.x86_64.rpm
kernel-debuginfo-common-2.6.18-128.1.6.el5.x86_64.rpm
kernel-devel-2.6.18-128.1.6.el5.x86_64.rpm
kernel-headers-2.6.18-128.1.6.el5.x86_64.rpm
kernel-xen-2.6.18-128.1.6.el5.x86_64.rpm
kernel-xen-debuginfo-2.6.18-128.1.6.el5.x86_64.rpm
kernel-xen-devel-2.6.18-128.1.6.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-2008-3528
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-5700
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0028
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0269
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0322
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0675
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0676
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0778
http://www.redhat.com/security/updates/classification/#important
http://www.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/5/html/Release_Notes/index.html#d0e497

8. Contact:

The Red Hat security contact is .  More contact
details at https://www.redhat.com/security/team/contact/

Copyright 2009 Red Hat, Inc.