RHSA-2005:420 - Security Advisory

Topic

Updated kernel packages are now available as part of ongoing support
and maintenance of Red Hat Enterprise Linux version 4. This is the
first regular update.

[Updated 9 August 2005]
The advisory text has been updated to show that this update also contained
fixes for the security issues named CAN-2005-0209 and CAN-2005-0937. No
changes have been made to the packages associated with this advisory.

Description

The Linux kernel handles the basic functions of the operating system.

This is the first regular kernel update to Red Hat Enterprise Linux 4.

A flaw affecting the auditing code was discovered. On Itanium
architectures a local user could use this flaw to cause a denial of service
(crash). This issue is rated as having important security impact
(CAN-2005-0136).

A flaw was discovered in the servicing of a raw device ioctl. A local user
who has access to raw devices could use this flaw to write to kernel memory
and cause a denial of service or potentially gain privileges. This issue
is rated as having moderate security impact (CAN-2005-1264).

A flaw in fragment forwarding was discovered that affected the netfilter
subsystem for certain network interface cards. A remote attacker could send
a set of bad fragments and cause a denial of service (system crash). Acenic
and SunGEM network interfaces were the only adapters affected, which are in
widespread use. (CAN-2005-0209)

A flaw in the futex functions was discovered affecting the Linux 2.6
kernel. A local user could use this flaw to cause a denial of service
(system crash). (CAN-2005-0937)

New features introduced by this update include:

• Fixed TCP BIC congestion handling.
• Diskdump support for more controllers (megaraid, SATA)
• Device mapper multipath support
• AMD64 dual core support.
• Intel ICH7 hardware support.

There were many bug fixes in various parts of the kernel. The ongoing
effort to resolve these problems has resulted in a marked improvement
in the reliability and scalability of Red Hat Enterprise Linux 4.

The following device drivers have been upgraded to new versions:
ata_piix -------- 1.03
bonding --------- 2.6.1
e1000 ----------- 5.6.10.1-k2-NAPI
e100 ------------ 3.3.6-k2-NAPI
ibmveth --------- 1.03
libata ---------- 1.02 to 1.10
lpfc ------------ 0:8.0.16 to 0:8.0.16.6_x2
megaraid_mbox --- 2.20.4.0 to 2.20.4.5
megaraid_mm ----- 2.20.2.0-rh1 to 2.20.2.5
sata_nv --------- 0.03 to 0.6
sata_promise ---- 1.00 to 1.01
sata_sil -------- 0.8
sata_sis -------- 0.5
sata_svw -------- 1.05
sata_sx4 -------- 0.7
sata_via -------- 1.0
sata_vsc -------- 1.0
tg3 ------------- 3.22-rh
ipw2100 --------- 1.0.3
ipw2200 --------- 1.0.0

All Red Hat Enterprise Linux 4 users are advised to upgrade their
kernels to the packages associated with their machine architectures
and configurations as listed in this erratum.

Solution

Before applying this update, make sure that all previously-released
errata relevant to your system have been applied. Use Red Hat
Network to download and update your packages. To launch the Red Hat
Update Agent, use the following command:

up2date

For information on how to install packages manually, refer to the
following Web page for the System Administration or Customization
guide specific to your system:

http://www.redhat.com/docs/manuals/enterprise/

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 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 Power, big endian 4 ppc

Fixes

• BZ - 133590 - PTRACE_ATTACH race with real parent's wait calls can produced bogus wait returns
• BZ - 134338 - Intolerable Disk I/O Performance under 64-bit VM: fix I/O buffers
• BZ - 137154 - "waitid(POSIX Interface)" cannot run properly.
• BZ - 138563 - [PATCH] RHEL4 U1: EFI GPT: reduce alternate header probing
• BZ - 140083 - lx-choptp19 crashed running 2.4.21-20.EL.BZ131027.hotfixhugemem
• BZ - 140383 - BLKFLSBUF ioctl can cause other reads
• BZ - 140472 - x86, x86_64 and IA64 scsi inquiry command hangs in wait_for_completion
• BZ - 141699 - FEAT: RHEL 4 U3: spinloops on ia64 need cpu_relax
• BZ - 141983 - RHEL4 U2: DBS: quiet warning messages from cpufreq.c
• BZ - 142167 - [RHEL4][Diskdump] smp_call_function issue
• BZ - 142464 - [PATCH] "RPC: garbage, exit EIO" when using NFSv3 with Kerberos 5
• BZ - 143073 - traced process cannot be killed
• BZ - 143472 - hugetlb mmap failed in compatibility mode in em64t
• BZ - 143907 - ext2 and device dm-0 byond 2Terabyte causes /var/log/messages file size to crash system
• BZ - 144741 - RHEL4 U1: ICH7 Support patch
• BZ - 145424 - problems with ipsec from rhel3 to rhel4
• BZ - 146067 - [PATCH] Channel bonding driver configured in 802.3 ad mode causes kernel panic when shutdwon
• BZ - 146089 - 20050115 ptrace/kill and ptrace/dump race fixes
• BZ - 146703 - NLM (NFSv3) problems when mounting with "sec=krb5"
• BZ - 146797 - SCTP memory consumption and system freezes
• BZ - 146911 - Thread suspension via async signal fails on rhel4-rc2
• BZ - 147832 - oom-killer triggered during Red Hat Cert
• BZ - 150110 - chipset identifier for zx2
• BZ - 150151 - Lockd callbacks to NFS clients fail completely
• BZ - 151284 - mmap of file over NFS corrupts data
• BZ - 152101 - host panics when mounting nfs4 volumes
• BZ - 152102 - host loses connection to nfs server when the server is solaris
• BZ - 152557 - 20050117 Oopsable NFS locking
• BZ - 154221 - Thread exits siliently via __RESTORE_ALL exeception for iret
• BZ - 154639 - kernel thread current->mm dereference in grab_swap_token causes oops
• BZ - 154972 - unexplained SIGSEGV death in SIGSEGV signal handler
• BZ - 155283 - CAN-2005-0136 ptrace corner cases on ia64
• BZ - 155765 - oops on 2.6.9-5.0.5.ELsmp
• BZ - 156875 - libata - master supports lba48 but slave does not
• BZ - 157450 - CAN-2005-1263 Linux kernel ELF core dump privilege elevation

CVEs

• CVE-2005-0136
• CVE-2005-0209
• CVE-2005-0937
• CVE-2005-1264
• CVE-2005-3107

References

(none)