[RHSA-2009:0009-02] 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-2009:0009-02

Product: Red Hat Enterprise MRG for RHEL-5

Advisory URL: https://rhn.redhat.com/errata/RHSA-2009-0009.html

Issue date: 2009-01-22

CVE Names: CVE-2008-0598 CVE-2008-3528 CVE-2008-3831

CVE-2008-4554 CVE-2008-4576 CVE-2008-4618

CVE-2008-5029

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1. Summary:

 

Updated kernel packages that fix several security issues and several bugs

are now available for Red Hat Enterprise MRG 1.0.

 

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

Hat Security Response Team.

 

2. Relevant releases/architectures:

 

MRG Realtime for RHEL 5 Server - i386, noarch, x86_64

 

3. Description:

 

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

operating system.

 

These updated packages address the following security issues:

 

* Tavis Ormandy discovered a deficiency in the Linux kernel 32-bit and

64-bit emulation. This could allow a local, unprivileged user to prepare

and run a specially-crafted binary which would use this deficiency to leak

uninitialized and potentially sensitive data. (CVE-2008-0598, Important)

 

* Olaf Kirch reported a flaw in the i915 kernel driver that only affects

the Intel G33 series and newer. This flaw could, potentially, lead to local

privilege escalation. (CVE-2008-3831, Important)

 

* Miklos Szeredi reported a missing check for files opened with O_APPEND in

sys_splice(). This could allow a local, unprivileged user to bypass the

append-only file restrictions. (CVE-2008-4554, Important)

 

* a deficiency was found in the Linux kernel Stream Control Transmission

Protocol (SCTP) implementation. This could lead to a possible denial of

service if one end of a SCTP connection did not support the AUTH extension.

(CVE-2008-4576, Important)

 

* Wei Yongjun reported a flaw in the Linux kernel SCTP implementation. In

certain code paths, sctp_sf_violation_paramlen() could be called with a

wrong parameter data type. This could lead to a possible denial of service.

(CVE-2008-4618, Important)

 

* when fput() was called to close a socket, the __scm_destroy() function in

the Linux kernel could make indirect recursive calls to itself. This could,

potentially, lead to a denial of service issue. (CVE-2008-5029, Important)

 

* the ext2 and ext3 filesystem code failed to properly handle corrupted

data structures, leading to a possible local denial of service issue when

read or write operations were performed. (CVE-2008-3528, Low)

 

These updated packages also address numerous bugs, including the following:

 

* several System on Chip (SoC) audio drivers allocated memory in the

platform device probe function but did not free this memory in the event of

an error. Instead, the memory was freed in the device probe function's

error path. This could result in a 'double free' error. With this update,

errors cause memory to be freed correctly.

 

* when a check was made to see if the netlink attribute fitted into

available memory, the value returned, "remaining", could become negative

due to alignment in nla_next(). GCC set "remaining" to unsigned when

testing against the sizeof(*nla), however. As a consequence, the test would

always succeed and the function nla_for_each_attr() could, potentially,

access memory outside the received buffer. With this update, sizeof is cast

to an integer, ensuring sizeof(*nla) does a signed test and prevents an

illegal memory de-reference.

 

* if a user-space process used a SIGIO notification and did not disable it

before closing the file descriptor, a stale pointer was left in the

async_queue of the real-time clock. When a different user-space process

subsequently used a SIGIO notification, the kernel de-referenced this

pointer and crashed. With this updated kernel, SIGIO notifications are

disabled when the file descriptor is closed, preventing this.

 

* the real-time kernel included with Red Hat Enterprise Linux MRG did not

randomize exec, heap or libc addresses. This update corrects this omission:

exec, heap and libc addresses are now randomized.

 

Numerous other bug fixes included with this update are noted in the Red Hat

Enterprise MRG 1.0 Real Time Security Update Release Note, available at the

location noted in the References section below.

 

All Red Hat Enterprise MRG users should install this update which addresses

these vulnerabilities and fixes these bugs.

 

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/docs/DOC-11259

 

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

 

433938 - CVE-2008-0598 kernel: linux x86_64 ia32 emulation leaks uninitialized data

455095 - event trace syscall on i386 has bogus parameters

459577 - CVE-2008-3528 Linux kernel ext[234] directory corruption denial of service

460102 - kernel: alsa: asoc: fix double free and memory leak in many codec drivers [mrg-1]

461330 - Update realtime kernel's lpfc version to 8.2.0.29

462281 - kernel: netlink: fix overrun in attribute iteration

464502 - CVE-2008-3831 kernel: i915 kernel drm driver arbitrary ioremap

465730 - CVE-2008-4618 kernel: sctp: Fix kernel panic while process protocol violation parameter

465744 - kernel: rtc: fix kernel panic on second use of SIGIO notification

465862 - Warning from rt_mutex code while testing infiniband

466079 - CVE-2008-4576 kernel: sctp: Fix oops when INIT-ACK indicates that peer doesn't support AUTH

466153 - [broadcom 5.3 feat] Update bnx2 to version 1.7.4+

466341 - RT kernel fails to boot on Intel Canelands processors (16 and 24 cores)

466554 - Update qla2xxx driver with RHEL5.3 + upstream fixes

466557 - Update the e1000e driver with RHEL5.3 and upstream fixes

466558 - Update the tg3 driver with RHEL5.3 and upstream fixes

466707 - CVE-2008-4554 kernel: don't allow splice() to files opened with O_APPEND

467739 - Add amd64_edac driver from IBM

467781 - MRG kernel has the e1000e bug

467783 - SAN Patchset needs merging into MRG

468205 - Turn off building of ocfs2 filesystem module in MRG RT kernel

469186 - [FOCUS] Lockdep fixes cause latency regression

470201 - CVE-2008-5029 kernel: Unix sockets kernel panic

 

6. Package List:

 

MRG Realtime for RHEL 5 Server:

 

Source:

ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/RHEMRG/SRPMS/kernel-rt-2.6.24.7-93.el5rt.src.rpm

 

i386:

kernel-rt-2.6.24.7-93.el5rt.i686.rpm

kernel-rt-debug-2.6.24.7-93.el5rt.i686.rpm

kernel-rt-debug-debuginfo-2.6.24.7-93.el5rt.i686.rpm

kernel-rt-debug-devel-2.6.24.7-93.el5rt.i686.rpm

kernel-rt-debuginfo-2.6.24.7-93.el5rt.i686.rpm

kernel-rt-debuginfo-common-2.6.24.7-93.el5rt.i686.rpm

kernel-rt-devel-2.6.24.7-93.el5rt.i686.rpm

kernel-rt-trace-2.6.24.7-93.el5rt.i686.rpm

kernel-rt-trace-debuginfo-2.6.24.7-93.el5rt.i686.rpm

kernel-rt-trace-devel-2.6.24.7-93.el5rt.i686.rpm

kernel-rt-vanilla-2.6.24.7-93.el5rt.i686.rpm

kernel-rt-vanilla-debuginfo-2.6.24.7-93.el5rt.i686.rpm

kernel-rt-vanilla-devel-2.6.24.7-93.el5rt.i686.rpm

 

noarch:

kernel-rt-doc-2.6.24.7-93.el5rt.noarch.rpm

 

x86_64:

kernel-rt-2.6.24.7-93.el5rt.x86_64.rpm

kernel-rt-debug-2.6.24.7-93.el5rt.x86_64.rpm

kernel-rt-debug-debuginfo-2.6.24.7-93.el5rt.x86_64.rpm

kernel-rt-debug-devel-2.6.24.7-93.el5rt.x86_64.rpm

kernel-rt-debuginfo-2.6.24.7-93.el5rt.x86_64.rpm

kernel-rt-debuginfo-common-2.6.24.7-93.el5rt.x86_64.rpm

kernel-rt-devel-2.6.24.7-93.el5rt.x86_64.rpm

kernel-rt-trace-2.6.24.7-93.el5rt.x86_64.rpm

kernel-rt-trace-debuginfo-2.6.24.7-93.el5rt.x86_64.rpm

kernel-rt-trace-devel-2.6.24.7-93.el5rt.x86_64.rpm

kernel-rt-vanilla-2.6.24.7-93.el5rt.x86_64.rpm

kernel-rt-vanilla-debuginfo-2.6.24.7-93.el5rt.x86_64.rpm

kernel-rt-vanilla-devel-2.6.24.7-93.el5rt.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-2008-0598

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-3528

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-3831

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-4554

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-4576

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-4618

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-5029

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

http://www.redhat.com/docs/en-US/Red_Hat_Enterprise_MRG/

 

8. Contact:

 

The Red Hat security contact is . More contact

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

 

Copyright 2009 Red Hat, Inc.

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