Synopsis

Important: kernel security update

Type/Severity

Security Advisory: Important

Topic

Updated kernel packages that fix security issues are now available for Red
Hat Enterprise Linux 4.

This update has been rated as having important security impact by the Red
Hat Security Response Team.

Description

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

This update fixes the following security issues:

• a NULL pointer dereference flaw was found in each of the following
  functions in the Linux kernel: pipe_read_open(), pipe_write_open(), and
  pipe_rdwr_open(). When the mutex lock is not held, the i_pipe pointer could
  be released by other processes before it is used to update the pipe's
  reader and writer counters. This could lead to a local denial of service or
  privilege escalation. (CVE-2009-3547, Important)
  

Users should upgrade to these updated packages, which contain a backported
patch to correct these issues. The system must be rebooted for this update
to take effect.

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

Affected Products

• Red Hat Enterprise Linux Server 4 x86_64
• Red Hat Enterprise Linux Server 4 ia64
• Red Hat Enterprise Linux Server 4 i386
• Red Hat Enterprise Linux Server - Extended Update Support 4.8 x86_64
• Red Hat Enterprise Linux Server - Extended Update Support 4.8 ia64
• Red Hat Enterprise Linux Server - Extended Update Support 4.8 i386
• Red Hat Enterprise Linux Workstation 4 x86_64
• Red Hat Enterprise Linux Workstation 4 ia64
• Red Hat Enterprise Linux Workstation 4 i386
• Red Hat Enterprise Linux Desktop 4 x86_64
• Red Hat Enterprise Linux Desktop 4 i386
• Red Hat Enterprise Linux for IBM z Systems 4 s390x
• Red Hat Enterprise Linux for IBM z Systems 4 s390
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 4.8 s390x
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 4.8 s390
• Red Hat Enterprise Linux for Power, big endian 4 ppc
• Red Hat Enterprise Linux for Power, big endian - Extended Update Support 4.8 ppc

Fixes

• BZ - 530490 - CVE-2009-3547 kernel: fs: pipe.c null pointer dereference

CVEs

• CVE-2009-3547

References

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

Red Hat Enterprise Linux Server 4

SRPM
x86_64
kernel-doc-2.6.9-89.0.16.EL.noarch.rpm	SHA-256: 8b5ee073d7f7e21f6518fb665ccfd9599a2a148e3cb783e62290d01c99611165
kernel-doc-2.6.9-89.0.16.EL.noarch.rpm	SHA-256: 8b5ee073d7f7e21f6518fb665ccfd9599a2a148e3cb783e62290d01c99611165
ia64
kernel-doc-2.6.9-89.0.16.EL.noarch.rpm	SHA-256: 8b5ee073d7f7e21f6518fb665ccfd9599a2a148e3cb783e62290d01c99611165
kernel-doc-2.6.9-89.0.16.EL.noarch.rpm	SHA-256: 8b5ee073d7f7e21f6518fb665ccfd9599a2a148e3cb783e62290d01c99611165
i386
kernel-doc-2.6.9-89.0.16.EL.noarch.rpm	SHA-256: 8b5ee073d7f7e21f6518fb665ccfd9599a2a148e3cb783e62290d01c99611165
kernel-doc-2.6.9-89.0.16.EL.noarch.rpm	SHA-256: 8b5ee073d7f7e21f6518fb665ccfd9599a2a148e3cb783e62290d01c99611165

Red Hat Enterprise Linux Server - Extended Update Support 4.8

SRPM
x86_64
kernel-doc-2.6.9-89.0.16.EL.noarch.rpm	SHA-256: 8b5ee073d7f7e21f6518fb665ccfd9599a2a148e3cb783e62290d01c99611165
kernel-doc-2.6.9-89.0.16.EL.noarch.rpm	SHA-256: 8b5ee073d7f7e21f6518fb665ccfd9599a2a148e3cb783e62290d01c99611165
ia64
kernel-doc-2.6.9-89.0.16.EL.noarch.rpm	SHA-256: 8b5ee073d7f7e21f6518fb665ccfd9599a2a148e3cb783e62290d01c99611165
kernel-doc-2.6.9-89.0.16.EL.noarch.rpm	SHA-256: 8b5ee073d7f7e21f6518fb665ccfd9599a2a148e3cb783e62290d01c99611165
i386
kernel-doc-2.6.9-89.0.16.EL.noarch.rpm	SHA-256: 8b5ee073d7f7e21f6518fb665ccfd9599a2a148e3cb783e62290d01c99611165
kernel-doc-2.6.9-89.0.16.EL.noarch.rpm	SHA-256: 8b5ee073d7f7e21f6518fb665ccfd9599a2a148e3cb783e62290d01c99611165

Red Hat Enterprise Linux Workstation 4

SRPM
x86_64
kernel-doc-2.6.9-89.0.16.EL.noarch.rpm	SHA-256: 8b5ee073d7f7e21f6518fb665ccfd9599a2a148e3cb783e62290d01c99611165
ia64
kernel-doc-2.6.9-89.0.16.EL.noarch.rpm	SHA-256: 8b5ee073d7f7e21f6518fb665ccfd9599a2a148e3cb783e62290d01c99611165
i386
kernel-doc-2.6.9-89.0.16.EL.noarch.rpm	SHA-256: 8b5ee073d7f7e21f6518fb665ccfd9599a2a148e3cb783e62290d01c99611165

Red Hat Enterprise Linux Desktop 4

SRPM
x86_64
kernel-doc-2.6.9-89.0.16.EL.noarch.rpm	SHA-256: 8b5ee073d7f7e21f6518fb665ccfd9599a2a148e3cb783e62290d01c99611165
i386
kernel-doc-2.6.9-89.0.16.EL.noarch.rpm	SHA-256: 8b5ee073d7f7e21f6518fb665ccfd9599a2a148e3cb783e62290d01c99611165

Red Hat Enterprise Linux for IBM z Systems 4

SRPM
s390x
kernel-doc-2.6.9-89.0.16.EL.noarch.rpm	SHA-256: 8b5ee073d7f7e21f6518fb665ccfd9599a2a148e3cb783e62290d01c99611165
s390
kernel-2.6.9-89.0.16.EL.s390.rpm	SHA-256: 3facc270aedb000515afb61de38ff128d5067e7f87a13369f534a6a63ddc5fc0
kernel-devel-2.6.9-89.0.16.EL.s390.rpm	SHA-256: a76e158814cc5f7d1d040b1f27b7f9b3abadc379bd700a27aa028c128c41049d
kernel-doc-2.6.9-89.0.16.EL.noarch.rpm	SHA-256: 8b5ee073d7f7e21f6518fb665ccfd9599a2a148e3cb783e62290d01c99611165

Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 4.8

SRPM
s390x
kernel-doc-2.6.9-89.0.16.EL.noarch.rpm	SHA-256: 8b5ee073d7f7e21f6518fb665ccfd9599a2a148e3cb783e62290d01c99611165
s390
kernel-2.6.9-89.0.16.EL.s390.rpm	SHA-256: 3facc270aedb000515afb61de38ff128d5067e7f87a13369f534a6a63ddc5fc0
kernel-devel-2.6.9-89.0.16.EL.s390.rpm	SHA-256: a76e158814cc5f7d1d040b1f27b7f9b3abadc379bd700a27aa028c128c41049d
kernel-doc-2.6.9-89.0.16.EL.noarch.rpm	SHA-256: 8b5ee073d7f7e21f6518fb665ccfd9599a2a148e3cb783e62290d01c99611165

Red Hat Enterprise Linux for Power, big endian 4

SRPM
ppc
kernel-doc-2.6.9-89.0.16.EL.noarch.rpm	SHA-256: 8b5ee073d7f7e21f6518fb665ccfd9599a2a148e3cb783e62290d01c99611165

Red Hat Enterprise Linux for Power, big endian - Extended Update Support 4.8

SRPM
ppc
kernel-doc-2.6.9-89.0.16.EL.noarch.rpm	SHA-256: 8b5ee073d7f7e21f6518fb665ccfd9599a2a148e3cb783e62290d01c99611165