SUSE SLED10 / SLES10 Security Update : kernel (SUSE-SU-2012:1391-1)

This script is Copyright (C) 2015 Tenable Network Security, Inc.


Synopsis :

The remote SUSE host is missing one or more security updates.

Description :

This Linux kernel update fixes various security issues and bugs in the
SUSE Linux Enterprise 10 SP4 kernel.

The following security issues have been fixed :

CVE-2011-2494: kernel/taskstats.c in the Linux kernel allowed local
users to obtain sensitive I/O statistics by sending taskstats commands
to a netlink socket, as demonstrated by discovering the length of
another users password (a side channel attack).

CVE-2012-2744: net/ipv6/netfilter/nf_conntrack_reasm.c in
the Linux kernel, when the nf_conntrack_ipv6 module is
enabled, allowed remote attackers to cause a denial of
service (NULL pointer dereference and system crash) via
certain types of fragmented IPv6 packets.

CVE-2012-3510: Use-after-free vulnerability in the
xacct_add_tsk function in kernel/tsacct.c in the Linux
kernel allowed local users to obtain potentially sensitive
information from kernel memory or cause a denial of service
(system crash) via a taskstats TASKSTATS_CMD_ATTR_PID
command.

CVE-2011-4110: The user_update function in
security/keys/user_defined.c in the Linux kernel 2.6 allowed
local users to cause a denial of service (NULL pointer
dereference and kernel oops) via vectors related to a
user-defined key and updating a negative key into a fully
instantiated key.

CVE-2011-1044: The ib_uverbs_poll_cq function in
drivers/infiniband/core/uverbs_cmd.c in the Linux kernel did
not initialize a certain response buffer, which allowed
local users to obtain potentially sensitive information from
kernel memory via vectors that cause this buffer to be only
partially filled, a different vulnerability than
CVE-2010-4649.

CVE-2012-3400: Heap-based buffer overflow in the
udf_load_logicalvol function in fs/udf/super.c in the Linux
kernel allowed remote attackers to cause a denial of service
(system crash) or possibly have unspecified other impact via
a crafted UDF filesystem.

CVE-2012-2136: The sock_alloc_send_pskb function in
net/core/sock.c in the Linux kernel did not properly
validate a certain length value, which allowed local users
to cause a denial of service (heap-based buffer overflow and
system crash) or possibly gain privileges by leveraging
access to a TUN/TAP device.

CVE-2012-2663: A small denial of service leak in dropping
syn+fin messages was fixed.

The following non-security issues have been fixed :

Packaging :

- kbuild: Fix gcc -x syntax (bnc#773831).

NFS :

- knfsd: An assortment of little fixes to the sunrpc cache
code (bnc#767766).

- knfsd: Unexport cache_fresh and fix a small race
(bnc#767766).

- knfsd: nfsd: do not drop silently on upcall deferral
(bnc#767766).

- knfsd: svcrpc: remove another silent drop from deferral
code (bnc#767766).

- sunrpc/cache: simplify cache_fresh_locked and
cache_fresh_unlocked (bnc#767766).

- sunrpc/cache: recheck cache validity after
cache_defer_req (bnc#767766).

- sunrpc/cache: use list_del_init for the list_head
entries in cache_deferred_req (bnc#767766).

- sunrpc/cache: avoid variable over-loading in
cache_defer_req (bnc#767766).

- sunrpc/cache: allow thread to block while waiting for
cache update (bnc#767766).

- sunrpc/cache: Fix race in sunrpc/cache introduced by
patch to allow thread to block while waiting for cache
update (bnc#767766).

- sunrpc/cache: Another fix for race problem with sunrpc
cache deferal (bnc#767766).

- knfsd: nfsd: make all exp_finding functions return

-errnos on err (bnc#767766).

- Fix kabi breakage in previous nfsd patch series
(bnc#767766).

- nfsd: Work around incorrect return type for
wait_for_completion_interruptible_timeout (bnc#767766).

- nfs: Fix a potential file corruption issue when writing
(bnc#773272).

- nfs: Allow sync writes to be multiple pages
(bnc#763526).

- nfs: fix reference counting for NFSv4 callback thread
(bnc#767504).

- nfs: flush signals before taking down callback thread
(bnc#767504).

- nfsv4: Ensure nfs_callback_down() calls svc_destroy()
(bnc#767504).

SCSI :

- SCSI/ch: Check NULL for kmalloc() return (bnc#783058).
drivers/scsi/aic94xx/aic94xx_init.c: correct the size
argument to kmalloc (bnc#783058).

block: fail SCSI passthrough ioctls on partition devices
(bnc#738400).

dm: do not forward ioctls from logical volumes to the
underlying device (bnc#738400).

vmware: Fix VMware hypervisor detection (bnc#777575,
bnc#770507).

S/390 :

- lgr: Make lgr_page static (bnc#772409,LTC#83520).

- zfcp: Fix oops in _blk_add_trace()
(bnc#772409,LTC#83510). kernel: Add z/VM LGR detection
(bnc#767277,LTC#RAS1203).

be2net: Fix EEH error reset before a flash dump
completes (bnc#755546).

- mptfusion: fix msgContext in mptctl_hp_hostinfo
(bnc#767939).

- PCI: Fix bus resource assignment on 32 bits with 64b
resources. (bnc#762581)

- PCI: fix up setup-bus.c #ifdef. (bnc#762581) x86:
powernow-k8: Fix indexing issue (bnc#758985).

net: Fix race condition about network device name
allocation (bnc#747576).

XEN :

- smpboot: adjust ordering of operations.

- xen/x86-64: provide a memset() that can deal with 4Gb or
above at a time (bnc#738528).

- xen: fix VM_FOREIGN users after c/s 878:eba6fe6d8d53
(bnc#760974).

- xen/gntdev: fix multi-page slot allocation (bnc#760974).

Note that Tenable Network Security has extracted the preceding
description block directly from the SUSE security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues.

See also :

http://www.nessus.org/u?78b77189
http://www.nessus.org/u?de8841aa
http://www.nessus.org/u?b107d19c
http://www.nessus.org/u?96b149b9
http://www.nessus.org/u?662e8c98
http://support.novell.com/security/cve/CVE-2011-1044.html
http://support.novell.com/security/cve/CVE-2011-4110.html
http://support.novell.com/security/cve/CVE-2012-2136.html
http://support.novell.com/security/cve/CVE-2012-2663.html
http://support.novell.com/security/cve/CVE-2012-2744.html
http://support.novell.com/security/cve/CVE-2012-3510.html
https://bugzilla.novell.com/674284
https://bugzilla.novell.com/703156
https://bugzilla.novell.com/734056
https://bugzilla.novell.com/738400
https://bugzilla.novell.com/738528
https://bugzilla.novell.com/747576
https://bugzilla.novell.com/755546
https://bugzilla.novell.com/758985
https://bugzilla.novell.com/760974
https://bugzilla.novell.com/762581
https://bugzilla.novell.com/763526
https://bugzilla.novell.com/765102
https://bugzilla.novell.com/765320
https://bugzilla.novell.com/767277
https://bugzilla.novell.com/767504
https://bugzilla.novell.com/767766
https://bugzilla.novell.com/767939
https://bugzilla.novell.com/769784
https://bugzilla.novell.com/770507
https://bugzilla.novell.com/770697
https://bugzilla.novell.com/772409
https://bugzilla.novell.com/773272
https://bugzilla.novell.com/773831
https://bugzilla.novell.com/776888
https://bugzilla.novell.com/777575
https://bugzilla.novell.com/783058
http://www.nessus.org/u?a7170536

Solution :

Update the affected kernel packages

Risk factor :

High / CVSS Base Score : 7.8
(CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C)
CVSS Temporal Score : 6.8
(CVSS2#E:ND/RL:OF/RC:C)
Public Exploit Available : false

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