Scientific Linux Security Update : kernel for SL 5.x on i386/x86_64

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Synopsis :

The remote Scientific Linux host is missing one or more security

Description :

CVE-2007-5966 kernel: non-root can trigger cpu_idle soft lockup
CVE-2009-1385 kernel: e1000_clean_rx_irq() denial of service
CVE-2009-1388 kernel: do_coredump() vs ptrace_start() deadlock
CVE-2009-1389 kernel: r8169: fix crash when large packets are received
CVE-2009-1895 kernel: personality: fix PER_CLEAR_ON_SETID
CVE-2009-2406 kernel: ecryptfs stack overflow in parse_tag_11_packet()
CVE-2009-2407 kernel: ecryptfs heap overflow in parse_tag_3_packet()

Security fixes :

- the possibility of a timeout value overflow was found in
the Linux kernel high-resolution timers functionality,
hrtimers. This could allow a local, unprivileged user to
execute arbitrary code, or cause a denial of service
(kernel panic). (CVE-2007-5966, Important)

- a flaw was found in the Intel PRO/1000 network driver in
the Linux kernel. Frames with sizes near the MTU of an
interface may be split across multiple hardware receive
descriptors. Receipt of such a frame could leak through
a validation check, leading to a corruption of the
length check. A remote attacker could use this flaw to
send a specially crafted packet that would cause a
denial of service or code execution. (CVE-2009-1385,

- Michael Tokarev reported a flaw in the Realtek r8169
Ethernet driver in the Linux kernel. This driver allowed
interfaces using this driver to receive frames larger
than could be handled, which could lead to a remote
denial of service or code execution. (CVE-2009-1389,

- the ADDR_COMPAT_LAYOUT and MMAP_PAGE_ZERO flags were not
cleared when a setuid or setgid program was executed. A
local, unprivileged user could use this flaw to bypass
the mmap_min_addr protection mechanism and perform a
NULL pointer dereference attack, or bypass the Address
Space Layout Randomization (ASLR) security feature.
(CVE-2009-1895, Important)

- Ramon de Carvalho Valle reported two flaws in the Linux
kernel eCryptfs implementation. A local attacker with
permissions to perform an eCryptfs mount could modify
the metadata of the files in that eCrypfts mount to
cause a buffer overflow, leading to a denial of service
or privilege escalation. (CVE-2009-2406, CVE-2009-2407,

- Konstantin Khlebnikov discovered a race condition in the
ptrace implementation in the Linux kernel. This race
condition can occur when the process tracing and the
process being traced participate in a core dump. A
local, unprivileged user could use this flaw to trigger
a deadlock, resulting in a partial denial of service.
(CVE-2009-1388, Moderate)

Bug fixes :

- possible host (dom0) crash when installing a Xen
para-virtualized guest while another para-virtualized
guest was rebooting. (BZ#497812)

- no audit record for a directory removal if the directory
and its subtree were recursively watched by an audit
rule. (BZ#507561)

- running 'echo 1 > /proc/sys/vm/drop_caches' on systems
under high memory load could cause a kernel panic.

- on 32-bit systems, core dumps for some multithreaded
applications did not include all thread information.

- a stack buffer used by get_event_name() was not large
enough for the nul terminator sprintf() writes. This
could lead to an invalid pointer or kernel panic.

- when using the aic94xx driver, a system with SATA drives
may not boot due to a bug in libsas. (BZ#506029)

- incorrect stylus button handling when moving it away
then returning it to the tablet for Wacom Cintiq 21UX
and Intuos tablets. (BZ#508275)

- CPU 'soft lockup' messages and possibly a system hang on
systems with certain Broadcom network devices and
running the Linux kernel from the kernel-xen package.

- on 64-bit PowerPC, getitimer() failed for programs using
the ITIMER_REAL timer and that were also compiled for
64-bit systems (this caused such programs to abort).

- write operations could be blocked even when using
O_NONBLOCK. (BZ#510239)

- the 'pci=nomsi' option was required for installing and
booting Red Hat Enterprise Linux 5.2 on systems with VIA
VT3364 chipsets. (BZ#507529)

- shutting down, destroying, or migrating Xen guests with
large amounts of memory could cause other guests to be
temporarily unresponsive. (BZ#512311)

See also :

Solution :

Update the affected packages.

Risk factor :

High / CVSS Base Score : 7.8

Family: Scientific Linux Local Security Checks

Nessus Plugin ID: 60634 ()

Bugtraq ID:

CVE ID: CVE-2007-5966

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