Scientific Linux Security Update : kernel on SL5.x i386/x86_64

This script is Copyright (C) 2012-2016 Tenable Network Security, Inc.

Synopsis :

The remote Scientific Linux host is missing one or more security

Description :

This update fixes the following security issues :

- a logic error was found in the do_setlk() function of
the Linux kernel Network File System (NFS)
implementation. If a signal interrupted a lock request,
the local POSIX lock was incorrectly created. This could
cause a denial of service on the NFS server if a file
descriptor was closed before its corresponding lock
request returned. (CVE-2008-4307, Important)

- a deficiency was found in the Linux kernel system call
auditing implementation on 64-bit systems. This could
allow a local, unprivileged user to circumvent a system
call audit configuration, if that configuration filtered
based on the 'syscall' number or arguments.
(CVE-2009-0834, Important)

- the exit_notify() function in the Linux kernel did not
properly reset the exit signal if a process executed a
set user ID (setuid) application before exiting. This
could allow a local, unprivileged user to elevate their
privileges. (CVE-2009-1337, Important)

- a flaw was found in the
ecryptfs_write_metadata_to_contents() function of the
Linux kernel eCryptfs implementation. On systems with a
4096 byte page-size, this flaw may have caused 4096
bytes of uninitialized kernel memory to be written into
the eCryptfs file headers, leading to an information
leak. Note: Encrypted files created on systems running
the vulnerable version of eCryptfs may contain leaked
data in the eCryptfs file headers. This update does not
remove any leaked data. Refer to the Knowledgebase
article in the References section for further
information. (CVE-2009-0787, Moderate)

- the Linux kernel implementation of the Network File
System (NFS) did not properly initialize the file name
limit in the nfs_server data structure. This flaw could
possibly lead to a denial of service on a client
mounting an NFS share. (CVE-2009-1336, Moderate)

This update also fixes the following bugs :

- the enic driver (Cisco 10G Ethernet) did not operate
under virtualization. (BZ#472474)

- network interfaces using the IBM eHEA Ethernet device
driver could not be successfully configured under
low-memory conditions. (BZ#487035)

- bonding with the 'arp_validate=3' option may have
prevented fail overs. (BZ#488064)

- when running under virtualization, the acpi-cpufreq
module wrote 'Domain attempted WRMSR' errors to the
dmesg log. (BZ#488928)

- NFS clients may have experienced deadlocks during
unmount. (BZ#488929)

- the ixgbe driver double counted the number of received
bytes and packets. (BZ#489459)

- the Wacom Intuos3 Lens Cursor device did not work
correctly with the Wacom Intuos3 12x12 tablet.

- on the Itanium® architecture, nanosleep() caused
commands which used it, such as sleep and usleep, to
sleep for one second more than expected. (BZ#490434)

- a panic and corruption of slab cache data structures
occurred on 64-bit PowerPC systems when clvmd was
running. (BZ#491677)

- the NONSTOP_TSC feature did not perform correctly on the
Intel® microarchitecture (Nehalem) when running in
32-bit mode. (BZ#493356)

- keyboards may not have functioned on IBM eServer System
p machines after a certain point during installation or
afterward. (BZ#494293)

- using Device Mapper Multipathing with the qla2xxx driver
resulted in frequent path failures. (BZ#495635)

- if the hypervisor was booted with the dom0_max_vcpus
parameter set to less than the actual number of CPUs in
the system, and the cpuspeed service was started, the
hypervisor could crash. (BZ#495931)

- using Openswan to provide an IPsec virtual private
network eventually resulted in a CPU soft lockup and a
system crash. (BZ#496044)

- it was possible for posix_locks_deadlock() to enter an
infinite loop (under the BKL), causing a system hang.

The system must be rebooted for this update to take effect.

See also :

Solution :

Update the affected packages.

Risk factor :

Medium / CVSS Base Score : 4.9

Family: Scientific Linux Local Security Checks

Nessus Plugin ID: 60581 ()

Bugtraq ID:

CVE ID: CVE-2008-4307

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