Synopsis

Important: kernel security update

Type/Severity

Security Advisory: Important

Topic

Updated kernel packages that fix several security issues are now available
for Red Hat Enterprise Linux 4.7 Extended Update Support.

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:

• Michael Tokarev reported a flaw in the Realtek r8169 Ethernet driver in
  the Linux kernel. This driver allowed interfaces using this driver to
  receive frames larger than what could be handled. This could lead to a
  remote denial of service or code execution. (CVE-2009-1389, Important)
  
• Tavis Ormandy and Julien Tinnes of the Google Security Team reported a
  flaw in the SOCKOPS_WRAP macro in the Linux kernel. This macro did not
  initialize the sendpage operation in the proto_ops structure correctly. A
  local, unprivileged user could use this flaw to cause a local denial of
  service or escalate their privileges. (CVE-2009-2692, Important)
  
• Tavis Ormandy and Julien Tinnes of the Google Security Team reported a
  flaw in the udp_sendmsg() implementation in the Linux kernel when using the
  MSG_MORE flag on UDP sockets. A local, unprivileged user could use this
  flaw to cause a local denial of service or escalate their privileges.
  (CVE-2009-2698, Important)
  

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.

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 - Extended Update Support 4.7 x86_64
• Red Hat Enterprise Linux Server - Extended Update Support 4.7 ia64
• Red Hat Enterprise Linux Server - Extended Update Support 4.7 i386
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 4.7 s390x
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 4.7 s390
• Red Hat Enterprise Linux for Power, big endian - Extended Update Support 4.7 ppc

Fixes

• BZ - 504726 - CVE-2009-1389 kernel: r8169: fix crash when large packets are received
• BZ - 516949 - CVE-2009-2692 kernel: uninit op in SOCKOPS_WRAP() leads to privesc
• BZ - 518034 - CVE-2009-2698 kernel: udp socket NULL ptr dereference

CVEs

• CVE-2009-1389
• CVE-2009-2698
• CVE-2009-2692

References

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

Red Hat Enterprise Linux Server - Extended Update Support 4.7

SRPM
x86_64
kernel-doc-2.6.9-78.0.27.EL.noarch.rpm	SHA-256: 40d14b5b80654c75d59b4e61ca4909dfdefa52ce73d4d9c1a1517bc6f9a75d3e
kernel-doc-2.6.9-78.0.27.EL.noarch.rpm	SHA-256: 40d14b5b80654c75d59b4e61ca4909dfdefa52ce73d4d9c1a1517bc6f9a75d3e
ia64
kernel-2.6.9-78.0.27.EL.ia64.rpm	SHA-256: e1ba14f3c8ef769e76276595b7d7739d8f8f16e650b1db5accfdacfb0ba67879
kernel-2.6.9-78.0.27.EL.ia64.rpm	SHA-256: e1ba14f3c8ef769e76276595b7d7739d8f8f16e650b1db5accfdacfb0ba67879
kernel-devel-2.6.9-78.0.27.EL.ia64.rpm	SHA-256: c260b51e8e4b169ab5fd8dab9d3f2ab3adb0f73917814976baf576833979be82
kernel-devel-2.6.9-78.0.27.EL.ia64.rpm	SHA-256: c260b51e8e4b169ab5fd8dab9d3f2ab3adb0f73917814976baf576833979be82
kernel-doc-2.6.9-78.0.27.EL.noarch.rpm	SHA-256: 40d14b5b80654c75d59b4e61ca4909dfdefa52ce73d4d9c1a1517bc6f9a75d3e
kernel-doc-2.6.9-78.0.27.EL.noarch.rpm	SHA-256: 40d14b5b80654c75d59b4e61ca4909dfdefa52ce73d4d9c1a1517bc6f9a75d3e
kernel-largesmp-2.6.9-78.0.27.EL.ia64.rpm	SHA-256: cccf59a2d7625e4f3298c9ca52931159859ea54586070c6e07a30a28f0368e1f
kernel-largesmp-2.6.9-78.0.27.EL.ia64.rpm	SHA-256: cccf59a2d7625e4f3298c9ca52931159859ea54586070c6e07a30a28f0368e1f
kernel-largesmp-devel-2.6.9-78.0.27.EL.ia64.rpm	SHA-256: d8b6076a1cfaaf46f69542db896b3ae0894568e6540f37eb218e495a006cebff
kernel-largesmp-devel-2.6.9-78.0.27.EL.ia64.rpm	SHA-256: d8b6076a1cfaaf46f69542db896b3ae0894568e6540f37eb218e495a006cebff
i386
kernel-doc-2.6.9-78.0.27.EL.noarch.rpm	SHA-256: 40d14b5b80654c75d59b4e61ca4909dfdefa52ce73d4d9c1a1517bc6f9a75d3e
kernel-doc-2.6.9-78.0.27.EL.noarch.rpm	SHA-256: 40d14b5b80654c75d59b4e61ca4909dfdefa52ce73d4d9c1a1517bc6f9a75d3e

Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 4.7

SRPM
s390x
kernel-doc-2.6.9-78.0.27.EL.noarch.rpm	SHA-256: 40d14b5b80654c75d59b4e61ca4909dfdefa52ce73d4d9c1a1517bc6f9a75d3e
s390
kernel-doc-2.6.9-78.0.27.EL.noarch.rpm	SHA-256: 40d14b5b80654c75d59b4e61ca4909dfdefa52ce73d4d9c1a1517bc6f9a75d3e

Red Hat Enterprise Linux for Power, big endian - Extended Update Support 4.7

SRPM
ppc
kernel-doc-2.6.9-78.0.27.EL.noarch.rpm	SHA-256: 40d14b5b80654c75d59b4e61ca4909dfdefa52ce73d4d9c1a1517bc6f9a75d3e