SuSE9 Security Update : the Linux kernel (YOU Patch Number 12677)

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Synopsis :

The remote SuSE 9 host is missing a security-related patch.

Description :

This patch updates the SUSE Linux Enterprise Server 9 kernel to fix
various security issues and some bugs.

The following security issues were fixed :

- The hci_uart_tty_open function in the HCI UART driver
(drivers/bluetooth/hci_ldisc.c) in the Linux kernel did
not verify whether the tty has a write operation, which
allowed local users to cause a denial of service (NULL
pointer dereference) via vectors related to the
Bluetooth driver. (CVE-2010-4242)

- The load_mixer_volumes function in sound/oss/soundcard.c
in the OSS sound subsystem in the Linux kernel
incorrectly expected that a certain name field ends with
a '\0' character, which allowed local users to conduct
buffer overflow attacks and gain privileges, or possibly
obtain sensitive information from kernel memory, via a
SOUND_MIXER_SETLEVELS ioctl call. (CVE-2010-4527)

- Integer underflow in the irda_getsockopt function in
net/irda/af_irda.c in the Linux kernel on platforms
other than x86 allowed local users to obtain potentially
sensitive information from kernel heap memory via an
IRLMP_ENUMDEVICES getsockopt call. (CVE-2010-4529)

- The aun_incoming function in net/econet/af_econet.c in
the Linux kernel, when Econet is enabled, allowed remote
attackers to cause a denial of service (NULL pointer
dereference and OOPS) by sending an Acorn Universal
Networking (AUN) packet over UDP. (CVE-2010-4342)

- fs/jfs/xattr.c in the Linux kernel did not properly
handle a certain legacy format for storage of extended
attributes, which might have allowed local users by
bypass intended xattr namespace restrictions via an
'os2.' substring at the beginning of a name.
(CVE-2010-2946)

- Stack-based buffer overflow in the econet_sendmsg
function in net/econet/af_econet.c in the Linux kernel,
when an econet address is configured, allowed local
users to gain privileges by providing a large number of
iovec structures. (CVE-2010-3848)

- The econet_sendmsg function in net/econet/af_econet.c in
the Linux kernel, when an econet address is configured,
allowed local users to cause a denial of service (NULL
pointer dereference and OOPS) via a sendmsg call that
specifies a NULL value for the remote address field.
(CVE-2010-3849)

- The ec_dev_ioctl function in net/econet/af_econet.c in
the Linux kernel does not require the CAP_NET_ADMIN
capability, which allowed local users to bypass intended
access restrictions and configure econet addresses via
an SIOCSIFADDR ioctl call. (CVE-2010-3850)

- The do_exit function in kernel/exit.c in the Linux
kernel did not properly handle a KERNEL_DS get_fs value,
which allowed local users to bypass intended access_ok
restrictions, overwrite arbitrary kernel memory
locations, and gain privileges by leveraging a (1) BUG,
(2) NULL pointer dereference, or (3) page fault, as
demonstrated by vectors involving the clear_child_tid
feature and the splice system call. (CVE-2010-4258)

- Multiple integer overflows in the (1) pppol2tp_sendmsg
function in net/l2tp/l2tp_ppp.c, and the (2)
l2tp_ip_sendmsg function in net/l2tp/l2tp_ip.c, in the
PPPoL2TP and IPoL2TP implementations in the Linux kernel
allowed local users to cause a denial of service (heap
memory corruption and panic) or possibly gain privileges
via a crafted sendto call. (CVE-2010-4160)

- Integer overflow in the ioc_general function in
drivers/scsi/gdth.c in the Linux kernel on 64-bit
platforms allowed local users to cause a denial of
service (memory corruption) or possibly have unspecified
other impact via a large argument in an ioctl call.
(CVE-2010-4157)

- Multiple integer underflows in the x25_parse_facilities
function in net/x25/x25_facilities.c in the Linux kernel
allowed remote attackers to cause a denial of service
(system crash) via malformed X.25 (1) X25_FAC_CLASS_A,
(2) X25_FAC_CLASS_B, (3) X25_FAC_CLASS_C, or (4)
X25_FAC_CLASS_D facility data, a different vulnerability
than CVE-2010-3873. (CVE-2010-4164)

- The sk_run_filter function in net/core/filter.c in the
Linux kernel did not check whether a certain memory
location has been initialized before executing a (1)
BPF_S_LD_MEM or (2) BPF_S_LDX_MEM instruction, which
allowed local users to obtain potentially sensitive
information from kernel stack memory via a crafted
socket filter. (CVE-2010-4158)

- Multiple integer overflows in the snd_ctl_new function
in sound/core/control.c in the Linux kernel allowed
local users to cause a denial of service (heap memory
corruption) or possibly have unspecified other impact
via a crafted (1) SNDRV_CTL_IOCTL_ELEM_ADD or (2)
SNDRV_CTL_IOCTL_ELEM_REPLACE ioctl call. (CVE-2010-3442)

- The snd_hdspm_hwdep_ioctl function in
sound/pci/rme9652/hdspm.c in the Linux kernel did not
initialize a certain structure, which allowed local
users to obtain potentially sensitive information from
kernel stack memory via an
SNDRV_HDSPM_IOCTL_GET_CONFIG_INFO ioctl call.
(CVE-2010-4081)

- The ipc subsystem in the Linux kernel did not initialize
certain structures, which allowed local users to obtain
potentially sensitive information from kernel stack
memory via vectors related to the (1) compat_sys_semctl,
(2) compat_sys_msgctl, and (3) compat_sys_shmctl
functions in ipc/compat.c; and the (4)
compat_sys_mq_open and (5) compat_sys_mq_getsetattr
functions in ipc/compat_mq.c. (CVE-2010-4073)

- The copy_shmid_to_user function in ipc/shm.c in the
Linux kernel did not initialize a certain structure,
which allowed local users to obtain potentially
sensitive information from kernel stack memory via
vectors related to the shmctl system call and the 'old
shm interface.'. (CVE-2010-4072)

- The copy_semid_to_user function in ipc/sem.c in the
Linux kernel did not initialize a certain structure,
which allowed local users to obtain potentially
sensitive information from kernel stack memory via a (1)
IPC_INFO, (2) SEM_INFO, (3) IPC_STAT, or (4) SEM_STAT
command in a semctl system call. (CVE-2010-4083)

- Integer overflow in the do_io_submit function in
fs/aio.c in the Linux kernel allowed local users to
cause a denial of service or possibly have unspecified
other impact via crafted use of the io_submit system
call. (CVE-2010-3067)

- Multiple integer signedness errors in net/rose/af_rose.c
in the Linux kernel allowed local users to cause a
denial of service (heap memory corruption) or possibly
have unspecified other impact via a rose_getname
function call, related to the rose_bind and rose_connect
functions. (CVE-2010-3310)

See also :

http://support.novell.com/security/cve/CVE-2010-2946.html
http://support.novell.com/security/cve/CVE-2010-3067.html
http://support.novell.com/security/cve/CVE-2010-3310.html
http://support.novell.com/security/cve/CVE-2010-3442.html
http://support.novell.com/security/cve/CVE-2010-3848.html
http://support.novell.com/security/cve/CVE-2010-3849.html
http://support.novell.com/security/cve/CVE-2010-3850.html
http://support.novell.com/security/cve/CVE-2010-3873.html
http://support.novell.com/security/cve/CVE-2010-4072.html
http://support.novell.com/security/cve/CVE-2010-4073.html
http://support.novell.com/security/cve/CVE-2010-4081.html
http://support.novell.com/security/cve/CVE-2010-4083.html
http://support.novell.com/security/cve/CVE-2010-4157.html
http://support.novell.com/security/cve/CVE-2010-4158.html
http://support.novell.com/security/cve/CVE-2010-4160.html
http://support.novell.com/security/cve/CVE-2010-4164.html
http://support.novell.com/security/cve/CVE-2010-4242.html
http://support.novell.com/security/cve/CVE-2010-4258.html
http://support.novell.com/security/cve/CVE-2010-4342.html
http://support.novell.com/security/cve/CVE-2010-4527.html
http://support.novell.com/security/cve/CVE-2010-4529.html

Solution :

Apply YOU patch number 12677.

Risk factor :

High / CVSS Base Score : 7.8
(CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C)
Public Exploit Available : true

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