Patch
oval:com.redhat.rhsa:def:20080211
RHSA-2008:0211: kernel security and bug fix update (Important)
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) * 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) * a flaw was found when performing asynchronous input or output operations
on a FIFO special file. A local unprivileged user could use this flaw to
cause a kernel panic. (CVE-2007-5001, Important) * a flaw was found in the way core dump files were created. If a local user
could get a root-owned process to dump a core file into a directory, which
the user has write access to, they could gain read access to that core
file. This could potentially grant unauthorized access to sensitive
information. (CVE-2007-6206, Moderate) * a buffer overflow was found in the Linux kernel ISDN subsystem. A local
unprivileged user could use this flaw to cause a denial of service.
(CVE-2007-6151, Moderate) * a race condition found in the mincore system core could allow a local
user to cause a denial of service (system hang). (CVE-2006-4814, Moderate) * it was discovered that the Linux kernel handled string operations in the
opposite way to the GNU Compiler Collection (GCC). This could allow a local
unprivileged user to cause memory corruption. (CVE-2008-1367, Low) As well, these updated packages fix the following bugs: * a bug, which caused long delays when unmounting mounts containing a large
number of unused dentries, has been resolved. * in the previous kernel packages, the kernel was unable to handle certain
floating point instructions on Itanium(R) architectures. * on certain Intel CPUs, the Translation Lookaside Buffer (TLB) was not
flushed correctly, which caused machine check errors. Red Hat Enterprise Linux 3 users are advised to upgrade to these updated
packages, which contain backported patches to resolve these issues. Create Date: 2008-05-07 Last Update Date: 2008-05-07
Affected Platforms/Products
References
Total : 17 Click here to view references
Criteria
The patch should be installed
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