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[RHSA-2014:0433-01] Moderate: kernel security, bug fix, and enhancement update

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Red Hat Security Advisory

 

Synopsis: Moderate: kernel security, bug fix, and enhancement update

Advisory ID: RHSA-2014:0433-01

Product: Red Hat Enterprise Linux

Advisory URL: https://rhn.redhat.com/errata/RHSA-2014-0433.html

Issue date: 2014-04-24

CVE Names: CVE-2012-6638 CVE-2013-2888

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

 

1. Summary:

 

Updated kernel packages that fix two security issues, three bugs, and add

one enhancement are now available for Red Hat Enterprise Linux 5.

 

The Red Hat Security Response Team has rated this update as having Moderate

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 (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.

 

* A flaw was found in the way the Linux kernel's TCP/IP protocol suite

implementation handled TCP packets with both the SYN and FIN flags set.

A remote attacker could use this flaw to consume an excessive amount of

resources on the target system, potentially resulting in a denial of

service. (CVE-2012-6638, Moderate)

 

* A flaw was found in the way the Linux kernel handled HID (Human Interface

Device) reports with an out-of-bounds Report ID. An attacker with physical

access to the system could use this flaw to crash the system or,

potentially, escalate their privileges on the system. (CVE-2013-2888,

Moderate)

 

This update also fixes the following bugs:

 

* A previous change to the sunrpc code introduced a race condition between

the rpc_wake_up_task() and rpc_wake_up_status() functions. A race between

threads operating on these functions could result in a deadlock situation,

subsequently triggering a "soft lockup" event and rendering the system

unresponsive. This problem has been fixed by re-ordering tasks in the RPC

wait queue. (BZ#1073731)

 

* Running a process in the background on a GFS2 file system could

sometimes trigger a glock recursion error that resulted in a kernel panic.

This happened when a readpage operation attempted to take a glock that had

already been held by another function. To prevent this error, GFS2 now

verifies whether the glock is already held when performing the readpage

operation. (BZ#1073953)

 

* A previous patch backport to the IUCV (Inter User Communication Vehicle)

code was incomplete. Consequently, when establishing an IUCV connection,

the kernel could, under certain circumstances, dereference a NULL pointer,

resulting in a kernel panic. A patch has been applied to correct this

problem by calling the proper function when removing IUCV paths.

(BZ#1077045)

 

In addition, this update adds the following enhancement:

 

* The lpfc driver had a fixed timeout of 60 seconds for SCSI task

management commands. With this update, the lpfc driver enables the user to

set this timeout within the range from 5 to 180 seconds. The timeout can

be changed by modifying the "lpfc_task_mgmt_tmo" parameter for the lpfc

driver. (BZ#1073123)

 

All kernel users are advised to upgrade to these updated packages, which

contain backported patches to correct these issues and add this

enhancement. 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/):

 

1000451 - CVE-2013-2888 Kernel: HID: memory corruption flaw

1066055 - CVE-2012-6638 Kernel: net: tcp: potential DoS via SYN+FIN messages

 

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-2.6.18-371.8.1.el5.src.rpm

 

i386:

kernel-2.6.18-371.8.1.el5.i686.rpm

kernel-PAE-2.6.18-371.8.1.el5.i686.rpm

kernel-PAE-debuginfo-2.6.18-371.8.1.el5.i686.rpm

kernel-PAE-devel-2.6.18-371.8.1.el5.i686.rpm

kernel-debug-2.6.18-371.8.1.el5.i686.rpm

kernel-debug-debuginfo-2.6.18-371.8.1.el5.i686.rpm

kernel-debug-devel-2.6.18-371.8.1.el5.i686.rpm

kernel-debuginfo-2.6.18-371.8.1.el5.i686.rpm

kernel-debuginfo-common-2.6.18-371.8.1.el5.i686.rpm

kernel-devel-2.6.18-371.8.1.el5.i686.rpm

kernel-headers-2.6.18-371.8.1.el5.i386.rpm

kernel-xen-2.6.18-371.8.1.el5.i686.rpm

kernel-xen-debuginfo-2.6.18-371.8.1.el5.i686.rpm

kernel-xen-devel-2.6.18-371.8.1.el5.i686.rpm

 

noarch:

kernel-doc-2.6.18-371.8.1.el5.noarch.rpm

 

x86_64:

kernel-2.6.18-371.8.1.el5.x86_64.rpm

kernel-debug-2.6.18-371.8.1.el5.x86_64.rpm

kernel-debug-debuginfo-2.6.18-371.8.1.el5.x86_64.rpm

kernel-debug-devel-2.6.18-371.8.1.el5.x86_64.rpm

kernel-debuginfo-2.6.18-371.8.1.el5.x86_64.rpm

kernel-debuginfo-common-2.6.18-371.8.1.el5.x86_64.rpm

kernel-devel-2.6.18-371.8.1.el5.x86_64.rpm

kernel-headers-2.6.18-371.8.1.el5.x86_64.rpm

kernel-xen-2.6.18-371.8.1.el5.x86_64.rpm

kernel-xen-debuginfo-2.6.18-371.8.1.el5.x86_64.rpm

kernel-xen-devel-2.6.18-371.8.1.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-2.6.18-371.8.1.el5.src.rpm

 

i386:

kernel-2.6.18-371.8.1.el5.i686.rpm

kernel-PAE-2.6.18-371.8.1.el5.i686.rpm

kernel-PAE-debuginfo-2.6.18-371.8.1.el5.i686.rpm

kernel-PAE-devel-2.6.18-371.8.1.el5.i686.rpm

kernel-debug-2.6.18-371.8.1.el5.i686.rpm

kernel-debug-debuginfo-2.6.18-371.8.1.el5.i686.rpm

kernel-debug-devel-2.6.18-371.8.1.el5.i686.rpm

kernel-debuginfo-2.6.18-371.8.1.el5.i686.rpm

kernel-debuginfo-common-2.6.18-371.8.1.el5.i686.rpm

kernel-devel-2.6.18-371.8.1.el5.i686.rpm

kernel-headers-2.6.18-371.8.1.el5.i386.rpm

kernel-xen-2.6.18-371.8.1.el5.i686.rpm

kernel-xen-debuginfo-2.6.18-371.8.1.el5.i686.rpm

kernel-xen-devel-2.6.18-371.8.1.el5.i686.rpm

 

ia64:

kernel-2.6.18-371.8.1.el5.ia64.rpm

kernel-debug-2.6.18-371.8.1.el5.ia64.rpm

kernel-debug-debuginfo-2.6.18-371.8.1.el5.ia64.rpm

kernel-debug-devel-2.6.18-371.8.1.el5.ia64.rpm

kernel-debuginfo-2.6.18-371.8.1.el5.ia64.rpm

kernel-debuginfo-common-2.6.18-371.8.1.el5.ia64.rpm

kernel-devel-2.6.18-371.8.1.el5.ia64.rpm

kernel-headers-2.6.18-371.8.1.el5.ia64.rpm

kernel-xen-2.6.18-371.8.1.el5.ia64.rpm

kernel-xen-debuginfo-2.6.18-371.8.1.el5.ia64.rpm

kernel-xen-devel-2.6.18-371.8.1.el5.ia64.rpm

 

noarch:

kernel-doc-2.6.18-371.8.1.el5.noarch.rpm

 

ppc:

kernel-2.6.18-371.8.1.el5.ppc64.rpm

kernel-debug-2.6.18-371.8.1.el5.ppc64.rpm

kernel-debug-debuginfo-2.6.18-371.8.1.el5.ppc64.rpm

kernel-debug-devel-2.6.18-371.8.1.el5.ppc64.rpm

kernel-debuginfo-2.6.18-371.8.1.el5.ppc64.rpm

kernel-debuginfo-common-2.6.18-371.8.1.el5.ppc64.rpm

kernel-devel-2.6.18-371.8.1.el5.ppc64.rpm

kernel-headers-2.6.18-371.8.1.el5.ppc.rpm

kernel-headers-2.6.18-371.8.1.el5.ppc64.rpm

kernel-kdump-2.6.18-371.8.1.el5.ppc64.rpm

kernel-kdump-debuginfo-2.6.18-371.8.1.el5.ppc64.rpm

kernel-kdump-devel-2.6.18-371.8.1.el5.ppc64.rpm

 

s390x:

kernel-2.6.18-371.8.1.el5.s390x.rpm

kernel-debug-2.6.18-371.8.1.el5.s390x.rpm

kernel-debug-debuginfo-2.6.18-371.8.1.el5.s390x.rpm

kernel-debug-devel-2.6.18-371.8.1.el5.s390x.rpm

kernel-debuginfo-2.6.18-371.8.1.el5.s390x.rpm

kernel-debuginfo-common-2.6.18-371.8.1.el5.s390x.rpm

kernel-devel-2.6.18-371.8.1.el5.s390x.rpm

kernel-headers-2.6.18-371.8.1.el5.s390x.rpm

kernel-kdump-2.6.18-371.8.1.el5.s390x.rpm

kernel-kdump-debuginfo-2.6.18-371.8.1.el5.s390x.rpm

kernel-kdump-devel-2.6.18-371.8.1.el5.s390x.rpm

 

x86_64:

kernel-2.6.18-371.8.1.el5.x86_64.rpm

kernel-debug-2.6.18-371.8.1.el5.x86_64.rpm

kernel-debug-debuginfo-2.6.18-371.8.1.el5.x86_64.rpm

kernel-debug-devel-2.6.18-371.8.1.el5.x86_64.rpm

kernel-debuginfo-2.6.18-371.8.1.el5.x86_64.rpm

kernel-debuginfo-common-2.6.18-371.8.1.el5.x86_64.rpm

kernel-devel-2.6.18-371.8.1.el5.x86_64.rpm

kernel-headers-2.6.18-371.8.1.el5.x86_64.rpm

kernel-xen-2.6.18-371.8.1.el5.x86_64.rpm

kernel-xen-debuginfo-2.6.18-371.8.1.el5.x86_64.rpm

kernel-xen-devel-2.6.18-371.8.1.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://access.redhat.com/security/team/key/#package

 

7. References:

 

https://www.redhat.com/security/data/cve/CVE-2012-6638.html

https://www.redhat.com/security/data/cve/CVE-2013-2888.html

https://access.redhat.com/security/updates/classification/#moderate

 

8. Contact:

 

The Red Hat security contact is . More contact

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

 

Copyright 2014 Red Hat, Inc.

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