Scientific Linux Security Update : kernel on SL4.x i386/x86_64

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Synopsis :

The remote Scientific Linux host is missing one or more security

Description :

- a flaw was found in the Linux kernel's Direct-IO
implementation. This could have allowed a local
unprivileged user to cause a denial of service.
(CVE-2007-6716, Important)

- when running ptrace in 31-bit mode on an IBM S/390 or
IBM System z kernel, a local unprivileged user could
cause a denial of service by reading from or writing
into a padding area in the user_regs_struct32 structure.
(CVE-2008-1514, Important)

- the do_truncate() and generic_file_splice_write()
functions did not clear the setuid and setgid bits. This
could have allowed a local unprivileged user to obtain
access to privileged information. (CVE-2008-4210,

- Tobias Klein reported a missing check in the Linux
kernel's Open Sound System (OSS) implementation. This
deficiency could have led to an information leak.
(CVE-2008-3272, Moderate)

- a potential denial of service attack was discovered in
the Linux kernel's PWC USB video driver. A local
unprivileged user could have used this flaw to bring the
kernel USB subsystem into the busy-waiting state.
(CVE-2007-5093, Low)

- the ext2 and ext3 file systems code failed to properly
handle corrupted data structures, leading to a possible
local denial of service issue when read or write
operations were performed. (CVE-2008-3528, Low)

In addition, these updated packages fix the following bugs :

- when using the CIFS 'forcedirectio' option, appending to
an open file on a CIFS share resulted in that file being
overwritten with the data to be appended.

- a kernel panic occurred when a device with PCI ID
8086:10c8 was present on a system with a loaded ixgbe

- due to an aacraid driver regression, the kernel failed
to boot when trying to load the aacraid driver and
printed the following error message: 'aac_srb:
aac_fib_send failed with status: 8195'.

- due to an mpt driver regression, when RAID 1 was
configured on Primergy systems with an LSI SCSI IME
53C1020/1030 controller, the kernel panicked during

- the mpt driver produced a large number of extraneous
debugging messages when performing a 'Host reset'

- due to a regression in the sym driver, the kernel
panicked when a SCSI hot swap was performed using MCP18

- all cores on a multi-core system now scale their
frequencies in accordance with the policy set by the
system's CPU frequency governor.

- the netdump subsystem suffered from several stability
issues. These are addressed in this updated kernel.

- under certain conditions, the ext3 file system reported
a negative count of used blocks.

- reading /proc/self/mem incorrectly returned 'Invalid
argument' instead of 'input/output error' due to a

- under certain conditions, the kernel panicked when a USB
device was removed while the system was busy accessing
the device.

- a race condition in the kernel could have led to a
kernel crash during the creation of a new process.

See also :

Solution :

Update the affected packages.

Risk factor :

Medium / CVSS Base Score : 6.6

Family: Scientific Linux Local Security Checks

Nessus Plugin ID: 60497 ()

Bugtraq ID:

CVE ID: CVE-2007-5093

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