Scientific Linux Security Update : kernel on SL4.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 flaw was found in the Realtek r8169 Ethernet driver in
the Linux kernel. pci_unmap_single() presented a memory
leak that could lead to IOMMU space exhaustion and a
system crash. An attacker on the local network could
trigger this flaw by using jumbo frames for large
amounts of network traffic. (CVE-2009-3613, Important)

- NULL pointer dereference flaws were found in the r128
driver in the Linux kernel. Checks to test if the
Concurrent Command Engine state was initialized were
missing in private IOCTL functions. An attacker could
use these flaws to cause a local denial of service or
escalate their privileges. (CVE-2009-3620, Important)

- an information leak was found in the Linux kernel. On
AMD64 systems, 32-bit processes could access and read
certain 64-bit registers by temporarily switching
themselves to 64-bit mode. (CVE-2009-2910, Moderate)

- the unix_stream_connect() function in the Linux kernel
did not check if a UNIX domain socket was in the
shutdown state. This could lead to a deadlock. A local,
unprivileged user could use this flaw to cause a denial
of service. (CVE-2009-3621, Moderate)

This update also fixes the following bugs :

- an iptables rule with the recent module and a hit count
value greater than the ip_pkt_list_tot parameter (the
default is 20), did not have any effect over packets, as
the hit count could not be reached. (BZ#529306)

- in environments that use dual-controller storage devices
with the cciss driver, Device-Mapper Multipath maps
could not be detected and configured, due to the cciss
driver not exporting the bus attribute via sysfs. This
attribute is now exported. (BZ#529309)

- the kernel crashed with a divide error when a certain
joystick was attached. (BZ#532027)

- a bug in the mptctl_do_mpt_command() function in the mpt
driver may have resulted in crashes during boot on i386
systems with certain adapters using the mpt driver, and
also running the hugemem kernel. (BZ#533798)

- on certain hardware, the igb driver was unable to detect
link statuses correctly. This may have caused problems
for network bonding, such as failover not occurring.

- the RHSA-2009:1024 update introduced a regression. After
updating to Scientific Linux 4.8 and rebooting, network
links often failed to be brought up for interfaces using
the forcedeth driver. 'no link during initialization'
messages may have been logged. (BZ#534112)

- the RHSA-2009:1024 update introduced a second
regression. On certain systems, PS/2 keyboards failed to
work. (BZ#537344)

- a bug in checksum offload calculations could have
crashed the bnx2x firmware when the iptable_nat module
was loaded, causing network traffic to stop. (BZ#537013)

- a check has been added to the IPv4 code to make sure
that the routing table data structure, rt, is not NULL,
to help prevent future bugs in functions that call
ip_append_data() from being exploitable. (BZ#537016)

- possible kernel pointer dereferences on systems with
several NFS mounts (a mixture of '-o lock' and '-o
nolock'), which in rare cases may have caused a system
crash, have been resolved. (BZ#537017)

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

See also :

Solution :

Update the affected packages.

Risk factor :

High / CVSS Base Score : 7.8

Family: Scientific Linux Local Security Checks

Nessus Plugin ID: 60705 ()

Bugtraq ID:

CVE ID: CVE-2009-2910

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