RHSA-2007:0436 - Security Advisory

Topic

Updated kernel packages are now available as part of ongoing support and
maintenance of Red Hat Enterprise Linux version 3. This is the ninth
regular update.

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

Description

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

This is the ninth regular kernel update to Red Hat Enterprise Linux 3.

There were no new features introduced by this update. The only changes
that have been included address critical customer needs or security
issues (elaborated below).

Key areas affected by fixes in this update include the networking
subsystem, dcache handling, the ext2 and ext3 file systems, the USB
subsystem, ACPI handling, and the audit subsystem. There were also
several isolated fixes in the tg3, e1000, megaraid_sas, and aacraid
device drivers.

The following security bugs were fixed in this update:

• a flaw in the cramfs file system that allowed invalid compressed

data to cause memory corruption (CVE-2006-5823, low)

• a flaw in the ext2 file system that allowed an invalid inode size

to cause a denial of service (system hang) (CVE-2006-6054, low)

• a flaw in IPV6 flow label handling that allowed a local user to

cause a denial of service (crash) (CVE-2007-1592, important)

Note: The kernel-unsupported package contains various drivers and modules
that are unsupported and therefore might contain security problems that
have not been addressed.

All Red Hat Enterprise Linux 3 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 3 x86_64
• Red Hat Enterprise Linux Server 3 ia64
• Red Hat Enterprise Linux Server 3 i386
• Red Hat Enterprise Linux Workstation 3 x86_64
• Red Hat Enterprise Linux Workstation 3 ia64
• Red Hat Enterprise Linux Workstation 3 i386
• Red Hat Enterprise Linux Desktop 3 x86_64
• Red Hat Enterprise Linux Desktop 3 i386
• Red Hat Enterprise Linux for IBM z Systems 3 s390x
• Red Hat Enterprise Linux for IBM z Systems 3 s390
• Red Hat Enterprise Linux for Power, big endian 3 ppc

Fixes

• BZ - 128616 - acl permissions over nfs
• BZ - 137374 - Need fix for: [NETFILTER]: Fix checksum bug for multicast/broadcast packets on postrouting hook.
• BZ - 144794 - tg3 driver on BCM5703X won't load. Says tg3: Could not obtain valid ethernet address, aborting.
• BZ - 164855 - u5 patch that turned on Dprintk's in arch/x86_64/kernel/smpboot.c
• BZ - 171007 - powermate module does not recognize Griffin Powermate device
• BZ - 173350 - jbd I/O errors after ext3 orphan processing on readonly device
• BZ - 177300 - hugetlb_get_unmapped_area may overflow in X86_64 compat mode
• BZ - 189052 - Kernel panic on shutdown or poweroff on SMP
• BZ - 192796 - cut/paste bug in kscand
• BZ - 199542 - Data corruption after IO error on swap (RHEL3)
• BZ - 209154 - High speed USB HID devices not working in RHEL3
• BZ - 216960 - CVE-2006-5823 zlib_inflate memory corruption
• BZ - 217022 - CVE-2006-6054 ext2_check_page denial of service
• BZ - 217930 - [RHEL3] Netdump for 8139cp driver
• BZ - 224600 - running 32-bit executables on x86_64/ia64/s390x causes negative "vm_committed_space" value
• BZ - 226895 - Kernel oops when loading ipmi_si module
• BZ - 231912 - Laus doesn't audit detach event
• BZ - 232221 - Laus dev.audit.attach-all doesn't attach to init
• BZ - 232336 - Enable use of PAL_HALT_LIGHT for idle loop as non-default option
• BZ - 233262 - ipv6 OOPS triggerable by any user

CVEs

• CVE-2006-5823
• CVE-2006-6054
• CVE-2007-1592

References

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