Synopsis

Important: kernel security update

Type/Severity

Security Advisory: Important

Topic

Updated kernel packages that resolve several security issues 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.

Description

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

This update addresses the following security issues:

• a memory leak in keyctl handling. A local user could use this flaw to
  deplete kernel memory, eventually leading to a denial of service.
  (CVE-2009-0031, Important)
  
• a buffer overflow in the Linux kernel Partial Reliable Stream Control
  Transmission Protocol (PR-SCTP) implementation. This could, potentially,
  lead to a denial of service if a Forward-TSN chunk is received with a large
  stream ID. (CVE-2009-0065, Important)
  
• a flaw when handling heavy network traffic on an SMP system with many
  cores. An attacker who could send a large amount of network traffic could
  create a denial of service. (CVE-2008-5713, Important)
  
• the code for the HFS and HFS Plus (HFS+) file systems failed to properly
  handle corrupted data structures. This could, potentially, lead to a local
  denial of service. (CVE-2008-4933, CVE-2008-5025, Low)
  
• a flaw was found in the HFS Plus (HFS+) file system implementation. This
  could, potentially, lead to a local denial of service when write operations
  are performed. (CVE-2008-4934, Low)
  

In addition, these updated packages fix the following bugs:

• when using the nfsd daemon in a clustered setup, kernel panics appeared
  seemingly at random. These panics were caused by a race condition in
  the device-mapper mirror target.
  
• the clock_gettime(CLOCK_THREAD_CPUTIME_ID, ) syscall returned a smaller
  timespec value than the result of previous clock_gettime() function
  execution, which resulted in a negative, and nonsensical, elapsed time value.
  
• nfs_create_rpc_client was called with a "flavor" parameter which was
  usually ignored and ended up unconditionally creating the RPC client with
  an AUTH_UNIX flavor. This caused problems on AUTH_GSS mounts when the
  credentials needed to be refreshed. The credops did not match the
  authorization type, which resulted in the credops dereferencing an
  incorrect part of the AUTH_UNIX rpc_auth struct.
  
• when copy_user_c terminated prematurely due to reading beyond the end of
  the user buffer and the kernel jumped to the exception table entry, the rsi
  register was not cleared. This resulted in exiting back to user code with
  garbage in the rsi register.
  
• the hexdump data in s390dbf traces was incomplete. The length of the data
  traced was incorrect and the SAN payload was read from a different place
  then it was written to.
  
• when using connected mode (CM) in IPoIB on ehca2 hardware, it was not
  possible to transmit any data.
  
• when an application called fork() and pthread_create() many times and, at
  some point, a thread forked a child and then attempted to call the
  setpgid() function, then this function failed and returned and ESRCH error
  value.
  

Users should upgrade to these updated packages, which contain backported
patches to correct these issues. Note: for this update to take effect, the
system must be rebooted.

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 5 x86_64
• Red Hat Enterprise Linux Server 5 ia64
• Red Hat Enterprise Linux Server 5 i386
• Red Hat Enterprise Linux Server - Extended Update Support 5.3 x86_64
• Red Hat Enterprise Linux Server - Extended Update Support 5.3 ia64
• Red Hat Enterprise Linux Server - Extended Update Support 5.3 i386
• Red Hat Enterprise Linux Server - AUS 5.3 x86_64
• Red Hat Enterprise Linux Server - AUS 5.3 ia64
• Red Hat Enterprise Linux Server - AUS 5.3 i386
• Red Hat Enterprise Linux Workstation 5 x86_64
• Red Hat Enterprise Linux Workstation 5 i386
• Red Hat Enterprise Linux Desktop 5 x86_64
• Red Hat Enterprise Linux Desktop 5 i386
• Red Hat Enterprise Linux for IBM z Systems 5 s390x
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 5.3 s390x
• Red Hat Enterprise Linux for Power, big endian 5 ppc
• Red Hat Enterprise Linux for Power, big endian - Extended Update Support 5.3 ppc
• Red Hat Enterprise Linux Server from RHUI 5 x86_64
• Red Hat Enterprise Linux Server from RHUI 5 i386

Fixes

• BZ - 469631 - CVE-2008-4933 kernel: hfsplus: fix Buffer overflow with a corrupted image
• BZ - 469640 - CVE-2008-4934 kernel: hfsplus: check read_mapping_page() return value
• BZ - 470769 - CVE-2008-5025 kernel: hfs: fix namelength memory corruption
• BZ - 477744 - CVE-2008-5713 kernel: soft lockup occurs when network load is very high
• BZ - 478800 - CVE-2009-0065 kernel: sctp: memory overflow when FWD-TSN chunk is received with bad stream ID
• BZ - 479812 - IB/ipoib: data transmission fails in connected mode on any HCA
• BZ - 480576 - RHEL5.2/3 - setpgid() returns ESRCH in some situations
• BZ - 480592 - CVE-2009-0031 kernel: local denial of service in keyctl_join_session_keyring
• BZ - 480996 - zfcp: fix hexdump data in s390dbf traces
• BZ - 481117 - RHSA-2008:0508 linux-2.6.9-x86_64-copy_user-zero-tail.patch broken
• BZ - 481119 - Kernel panic in auth_rpcgss:__gss_find_upcall
• BZ - 481120 - oops in mirror_map (dm-raid1.c)
• BZ - 481122 - [5.3] clock_gettime() syscall returns a smaller timespec value than previous.

CVEs

• CVE-2008-4933
• CVE-2008-4934
• CVE-2008-5025
• CVE-2009-0065
• CVE-2009-0031
• CVE-2008-5713

References

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

Red Hat Enterprise Linux Server 5

SRPM
x86_64
kernel-2.6.18-128.1.1.el5.x86_64.rpm	SHA-256: 94fb8e80f3ec13f7c0636f27044dc9c475c2054fc9c826fd99c55bc60ead5c2b
kernel-debug-2.6.18-128.1.1.el5.x86_64.rpm	SHA-256: c88c23bdbdf3227ba29f1afd603a3fcca6012f21ad6ea85d46b00cf8c4069355
kernel-debug-devel-2.6.18-128.1.1.el5.x86_64.rpm	SHA-256: 2772976615cd9cbd6d30556b8c0d9d68bcbff151d23d1465e58f849bdfcf12e9
kernel-devel-2.6.18-128.1.1.el5.x86_64.rpm	SHA-256: e5118aac170a152b6ca92abe1dee53a0408873c15a3558ae9ba735659a4c7d15
kernel-doc-2.6.18-128.1.1.el5.noarch.rpm	SHA-256: 7a382f98c87a9fe8e750100f1cbd9586748ad3561095f7d9102f10d06e64c015
kernel-headers-2.6.18-128.1.1.el5.x86_64.rpm	SHA-256: f18bec7cfb5a162f9146b5801a20b1cc273c00dd92401455904742d610fff465
kernel-xen-2.6.18-128.1.1.el5.x86_64.rpm	SHA-256: 7fd44ae2cf5a86a4fb9ebcd2220938c793c498cef3a88380ac071383775f0caa
kernel-xen-devel-2.6.18-128.1.1.el5.x86_64.rpm	SHA-256: 6b25d5d113aa08c401dc07ccbbf1a42dfc60720cffc19dbb8d05996e8ac93e40
ia64
kernel-doc-2.6.18-128.1.1.el5.noarch.rpm	SHA-256: 7a382f98c87a9fe8e750100f1cbd9586748ad3561095f7d9102f10d06e64c015
i386
kernel-doc-2.6.18-128.1.1.el5.noarch.rpm	SHA-256: 7a382f98c87a9fe8e750100f1cbd9586748ad3561095f7d9102f10d06e64c015

Red Hat Enterprise Linux Workstation 5

SRPM
x86_64
kernel-2.6.18-128.1.1.el5.x86_64.rpm	SHA-256: 94fb8e80f3ec13f7c0636f27044dc9c475c2054fc9c826fd99c55bc60ead5c2b
kernel-debug-2.6.18-128.1.1.el5.x86_64.rpm	SHA-256: c88c23bdbdf3227ba29f1afd603a3fcca6012f21ad6ea85d46b00cf8c4069355
kernel-debug-devel-2.6.18-128.1.1.el5.x86_64.rpm	SHA-256: 2772976615cd9cbd6d30556b8c0d9d68bcbff151d23d1465e58f849bdfcf12e9
kernel-devel-2.6.18-128.1.1.el5.x86_64.rpm	SHA-256: e5118aac170a152b6ca92abe1dee53a0408873c15a3558ae9ba735659a4c7d15
kernel-doc-2.6.18-128.1.1.el5.noarch.rpm	SHA-256: 7a382f98c87a9fe8e750100f1cbd9586748ad3561095f7d9102f10d06e64c015
kernel-headers-2.6.18-128.1.1.el5.x86_64.rpm	SHA-256: f18bec7cfb5a162f9146b5801a20b1cc273c00dd92401455904742d610fff465
kernel-xen-2.6.18-128.1.1.el5.x86_64.rpm	SHA-256: 7fd44ae2cf5a86a4fb9ebcd2220938c793c498cef3a88380ac071383775f0caa
kernel-xen-devel-2.6.18-128.1.1.el5.x86_64.rpm	SHA-256: 6b25d5d113aa08c401dc07ccbbf1a42dfc60720cffc19dbb8d05996e8ac93e40
i386
kernel-doc-2.6.18-128.1.1.el5.noarch.rpm	SHA-256: 7a382f98c87a9fe8e750100f1cbd9586748ad3561095f7d9102f10d06e64c015

Red Hat Enterprise Linux Desktop 5

SRPM
x86_64
kernel-2.6.18-128.1.1.el5.x86_64.rpm	SHA-256: 94fb8e80f3ec13f7c0636f27044dc9c475c2054fc9c826fd99c55bc60ead5c2b
kernel-debug-2.6.18-128.1.1.el5.x86_64.rpm	SHA-256: c88c23bdbdf3227ba29f1afd603a3fcca6012f21ad6ea85d46b00cf8c4069355
kernel-debug-devel-2.6.18-128.1.1.el5.x86_64.rpm	SHA-256: 2772976615cd9cbd6d30556b8c0d9d68bcbff151d23d1465e58f849bdfcf12e9
kernel-devel-2.6.18-128.1.1.el5.x86_64.rpm	SHA-256: e5118aac170a152b6ca92abe1dee53a0408873c15a3558ae9ba735659a4c7d15
kernel-doc-2.6.18-128.1.1.el5.noarch.rpm	SHA-256: 7a382f98c87a9fe8e750100f1cbd9586748ad3561095f7d9102f10d06e64c015
kernel-headers-2.6.18-128.1.1.el5.x86_64.rpm	SHA-256: f18bec7cfb5a162f9146b5801a20b1cc273c00dd92401455904742d610fff465
kernel-xen-2.6.18-128.1.1.el5.x86_64.rpm	SHA-256: 7fd44ae2cf5a86a4fb9ebcd2220938c793c498cef3a88380ac071383775f0caa
kernel-xen-devel-2.6.18-128.1.1.el5.x86_64.rpm	SHA-256: 6b25d5d113aa08c401dc07ccbbf1a42dfc60720cffc19dbb8d05996e8ac93e40
i386
kernel-doc-2.6.18-128.1.1.el5.noarch.rpm	SHA-256: 7a382f98c87a9fe8e750100f1cbd9586748ad3561095f7d9102f10d06e64c015

Red Hat Enterprise Linux for IBM z Systems 5

SRPM
s390x
kernel-doc-2.6.18-128.1.1.el5.noarch.rpm	SHA-256: 7a382f98c87a9fe8e750100f1cbd9586748ad3561095f7d9102f10d06e64c015

Red Hat Enterprise Linux for Power, big endian 5

SRPM
ppc
kernel-doc-2.6.18-128.1.1.el5.noarch.rpm	SHA-256: 7a382f98c87a9fe8e750100f1cbd9586748ad3561095f7d9102f10d06e64c015

Red Hat Enterprise Linux Server from RHUI 5

SRPM
x86_64
kernel-2.6.18-128.1.1.el5.x86_64.rpm	SHA-256: 94fb8e80f3ec13f7c0636f27044dc9c475c2054fc9c826fd99c55bc60ead5c2b
kernel-debug-2.6.18-128.1.1.el5.x86_64.rpm	SHA-256: c88c23bdbdf3227ba29f1afd603a3fcca6012f21ad6ea85d46b00cf8c4069355
kernel-debug-devel-2.6.18-128.1.1.el5.x86_64.rpm	SHA-256: 2772976615cd9cbd6d30556b8c0d9d68bcbff151d23d1465e58f849bdfcf12e9
kernel-devel-2.6.18-128.1.1.el5.x86_64.rpm	SHA-256: e5118aac170a152b6ca92abe1dee53a0408873c15a3558ae9ba735659a4c7d15
kernel-doc-2.6.18-128.1.1.el5.noarch.rpm	SHA-256: 7a382f98c87a9fe8e750100f1cbd9586748ad3561095f7d9102f10d06e64c015
kernel-headers-2.6.18-128.1.1.el5.x86_64.rpm	SHA-256: f18bec7cfb5a162f9146b5801a20b1cc273c00dd92401455904742d610fff465
kernel-xen-2.6.18-128.1.1.el5.x86_64.rpm	SHA-256: 7fd44ae2cf5a86a4fb9ebcd2220938c793c498cef3a88380ac071383775f0caa
kernel-xen-devel-2.6.18-128.1.1.el5.x86_64.rpm	SHA-256: 6b25d5d113aa08c401dc07ccbbf1a42dfc60720cffc19dbb8d05996e8ac93e40
i386
kernel-doc-2.6.18-128.1.1.el5.noarch.rpm	SHA-256: 7a382f98c87a9fe8e750100f1cbd9586748ad3561095f7d9102f10d06e64c015