The kernel packages contain the Linux kernel, the core of any Linux
operating system.
These updated packages fix the following security issues:
the absence of a protection mechanism when attempting to access a
critical section of code has been found in the Linux kernel open file
descriptors control mechanism, fcntl. This could allow a local unprivileged
user to simultaneously execute code, which would otherwise be protected
against parallel execution. As well, a race condition when handling locks
in the Linux kernel fcntl functionality, may have allowed a process
belonging to a local unprivileged user to gain re-ordered access to the
descriptor table. (CVE-2008-1669, Important)
on AMD64 architectures, the possibility of a kernel crash was discovered
by testing the Linux kernel process-trace ability. This could allow a local
unprivileged user to cause a denial of service (kernel crash).
(CVE-2008-1615, Important)
the absence of a protection mechanism when attempting to access a
critical section of code, as well as a race condition, have been found
in the Linux kernel file system event notifier, dnotify. This could allow a
local unprivileged user to get inconsistent data, or to send arbitrary
signals to arbitrary system processes. (CVE-2008-1375, Important)
Red Hat would like to thank Nick Piggin for responsibly disclosing the
following issue:
when accessing kernel memory locations, certain Linux kernel drivers
registering a fault handler did not perform required range checks. A local
unprivileged user could use this flaw to gain read or write access to
arbitrary kernel memory, or possibly cause a kernel crash.
(CVE-2008-0007, Important)
the possibility of a kernel crash was found in the Linux kernel IPsec
protocol implementation, due to improper handling of fragmented ESP
packets. When an attacker controlling an intermediate router fragmented
these packets into very small pieces, it would cause a kernel crash on the
receiving node during packet reassembly. (CVE-2007-6282, Important)
a flaw in the MOXA serial driver could allow a local unprivileged user
to perform privileged operations, such as replacing firmware.
(CVE-2005-0504, Important)
As well, these updated packages fix the following bugs:
multiple buffer overflows in the neofb driver have been resolved. It was
not possible for an unprivileged user to exploit these issues, and as such,
they have not been handled as security issues.
a kernel panic, due to inconsistent detection of AGP aperture size, has
been resolved.
a race condition in UNIX domain sockets may have caused βrecv()β to
return zero. In clustered configurations, this may have caused unexpected
failovers.
to prevent link storms, network link carrier events were delayed by up to
one second, causing unnecessary packet loss. Now, link carrier events are
scheduled immediately.
a client-side race on blocking locks caused large time delays on NFS file
systems.
in certain situations, the libATA sata_nv driver may have sent commands
with duplicate tags, which were rejected by SATA devices. This may have
caused infinite reboots.
running the βservice network restartβ command may have caused networking
to fail.
a bug in NFS caused cached information about directories to be stored
for too long, causing wrong attributes to be read.
on systems with a large highmem/lowmem ratio, NFS write performance may
have been very slow when using small files.
a bug, which caused network hangs when the system clock was wrapped
around zero, has been resolved.
Red Hat Enterprise Linux 4 users are advised to upgrade to these updated
packages, which contain backported patches to resolve these issues.
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
RedHat | any | ia64 | kernel-largesmp-devel | <Β 2.6.9-67.0.15.EL | kernel-largesmp-devel-2.6.9-67.0.15.EL.ia64.rpm |
RedHat | any | src | kernel | <Β 2.6.9-67.0.15.EL | kernel-2.6.9-67.0.15.EL.src.rpm |
RedHat | any | ppc64iseries | kernel | <Β 2.6.9-67.0.15.EL | kernel-2.6.9-67.0.15.EL.ppc64iseries.rpm |
RedHat | any | noarch | kernel-doc | <Β 2.6.9-67.0.15.EL | kernel-doc-2.6.9-67.0.15.EL.noarch.rpm |
RedHat | any | x86_64 | kernel-largesmp-devel | <Β 2.6.9-67.0.15.EL | kernel-largesmp-devel-2.6.9-67.0.15.EL.x86_64.rpm |
RedHat | any | i686 | kernel | <Β 2.6.9-67.0.15.EL | kernel-2.6.9-67.0.15.EL.i686.rpm |
RedHat | any | i686 | kernel-hugemem-devel | <Β 2.6.9-67.0.15.EL | kernel-hugemem-devel-2.6.9-67.0.15.EL.i686.rpm |
RedHat | any | ia64 | kernel-devel | <Β 2.6.9-67.0.15.EL | kernel-devel-2.6.9-67.0.15.EL.ia64.rpm |
RedHat | any | s390x | kernel-devel | <Β 2.6.9-67.0.15.EL | kernel-devel-2.6.9-67.0.15.EL.s390x.rpm |
RedHat | any | x86_64 | kernel-xenu-devel | <Β 2.6.9-67.0.15.EL | kernel-xenU-devel-2.6.9-67.0.15.EL.x86_64.rpm |