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Ubuntu Security Notice USN-1074-2

Ubuntu Security Notice USN-1074-2
Posted Feb 28, 2011
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1074-2 - USN-1074-1 fixed vulnerabilities in linux-fsl-imx51 in Ubuntu 9.10. This update provides the corresponding updates for Ubuntu 10.04. Multiple vulnerabilities have been discovered and addressed in the Linux kernel. Al Viro discovered a race condition in the TTY driver. Dan Rosenberg discovered that the MOVE_EXT ext4 ioctl did not correctly check file permissions. Neil Brown discovered that NFSv4 did not correctly check certain write requests. David Howells discovered that DNS resolution in CIFS could be spoofed. Various other issues have also been addressed.

tags | advisory, kernel, spoof, vulnerability
systems | linux, ubuntu
advisories | CVE-2009-4895, CVE-2010-2066, CVE-2010-2226, CVE-2010-2240, CVE-2010-2248, CVE-2010-2478, CVE-2010-2495, CVE-2010-2521, CVE-2010-2524, CVE-2010-2538, CVE-2010-2798, CVE-2010-2803, CVE-2010-2942, CVE-2010-2943, CVE-2010-2946, CVE-2010-2954, CVE-2010-2955, CVE-2010-2959, CVE-2010-2962, CVE-2010-2963, CVE-2010-3015, CVE-2010-3067, CVE-2010-3078, CVE-2010-3079, CVE-2010-3080, CVE-2010-3081, CVE-2010-3084, CVE-2010-3296
MD5 | 3c50452827e25742bef7840b721455f6

Ubuntu Security Notice USN-1074-2

Change Mirror Download
===========================================================
Ubuntu Security Notice USN-1074-2 February 28, 2011
linux-fsl-imx51 vulnerabilities
CVE-2009-4895, CVE-2010-2066, CVE-2010-2226, CVE-2010-2248,
CVE-2010-2478, CVE-2010-2495, CVE-2010-2521, CVE-2010-2524,
CVE-2010-2538, CVE-2010-2798, CVE-2010-2942, CVE-2010-2943,
CVE-2010-2946, CVE-2010-2954, CVE-2010-2955, CVE-2010-2962,
CVE-2010-2963, CVE-2010-3015, CVE-2010-3067, CVE-2010-3078,
CVE-2010-3079, CVE-2010-3080, CVE-2010-3081, CVE-2010-3084,
CVE-2010-3296, CVE-2010-3297, CVE-2010-3298, CVE-2010-3301,
CVE-2010-3310, CVE-2010-3432, CVE-2010-3437, CVE-2010-3442,
CVE-2010-3448, CVE-2010-3477, CVE-2010-3698, CVE-2010-3705,
CVE-2010-3848, CVE-2010-3849, CVE-2010-3850, CVE-2010-3858,
CVE-2010-3861, CVE-2010-3904, CVE-2010-4072, CVE-2010-4073,
CVE-2010-4074, CVE-2010-4078, CVE-2010-4079, CVE-2010-4165,
CVE-2010-4169, CVE-2010-4249
===========================================================

A security issue affects the following Ubuntu releases:

Ubuntu 10.04 LTS

This advisory also applies to the corresponding versions of
Kubuntu, Edubuntu, and Xubuntu.

The problem can be corrected by upgrading your system to the
following package versions:

Ubuntu 10.04 LTS:
linux-image-2.6.31-608-imx51 2.6.31-608.22

After a standard system update you need to reboot your computer to make
all the necessary changes.

Details follow:

USN-1074-1 fixed vulnerabilities in linux-fsl-imx51 in Ubuntu 9.10. This
update provides the corresponding updates for Ubuntu 10.04.

Original advisory details:

Al Viro discovered a race condition in the TTY driver. A local attacker
could exploit this to crash the system, leading to a denial of service.
(CVE-2009-4895)

Dan Rosenberg discovered that the MOVE_EXT ext4 ioctl did not correctly
check file permissions. A local attacker could overwrite append-only files,
leading to potential data loss. (CVE-2010-2066)

Dan Rosenberg discovered that the swapexit xfs ioctl did not correctly
check file permissions. A local attacker could exploit this to read from
write-only files, leading to a loss of privacy. (CVE-2010-2226)

Gael Delalleu, Rafal Wojtczuk, and Brad Spengler discovered that the memory
manager did not properly handle when applications grow stacks into adjacent
memory regions. A local attacker could exploit this to gain control of
certain applications, potentially leading to privilege escalation, as
demonstrated in attacks against the X server. (CVE-2010-2240)

Suresh Jayaraman discovered that CIFS did not correctly validate certain
response packats. A remote attacker could send specially crafted traffic
that would crash the system, leading to a denial of service.
(CVE-2010-2248)

Ben Hutchings discovered that the ethtool interface did not correctly check
certain sizes. A local attacker could perform malicious ioctl calls that
could crash the system, leading to a denial of service. (CVE-2010-2478,
CVE-2010-3084)

James Chapman discovered that L2TP did not correctly evaluate checksum
capabilities. If an attacker could make malicious routing changes, they
could crash the system, leading to a denial of service. (CVE-2010-2495)

Neil Brown discovered that NFSv4 did not correctly check certain write
requests. A remote attacker could send specially crafted traffic that could
crash the system or possibly gain root privileges. (CVE-2010-2521)

David Howells discovered that DNS resolution in CIFS could be spoofed. A
local attacker could exploit this to control DNS replies, leading to a loss
of privacy and possible privilege escalation. (CVE-2010-2524)

Dan Rosenberg discovered that the btrfs filesystem did not correctly
validate permissions when using the clone function. A local attacker could
overwrite the contents of file handles that were opened for append-only, or
potentially read arbitrary contents, leading to a loss of privacy. Only
Ubuntu 9.10 was affected. (CVE-2010-2538)

Bob Peterson discovered that GFS2 rename operations did not correctly
validate certain sizes. A local attacker could exploit this to crash the
system, leading to a denial of service. (CVE-2010-2798)

Kees Cook discovered that under certain situations the ioctl subsystem for
DRM did not properly sanitize its arguments. A local attacker could exploit
this to read previously freed kernel memory, leading to a loss of privacy.
(CVE-2010-2803)

Eric Dumazet discovered that many network functions could leak kernel stack
contents. A local attacker could exploit this to read portions of kernel
memory, leading to a loss of privacy. (CVE-2010-2942, CVE-2010-3477)

Dave Chinner discovered that the XFS filesystem did not correctly order
inode lookups when exported by NFS. A remote attacker could exploit this to
read or write disk blocks that had changed file assignment or had become
unlinked, leading to a loss of privacy. (CVE-2010-2943)

Sergey Vlasov discovered that JFS did not correctly handle certain extended
attributes. A local attacker could bypass namespace access rules, leading
to a loss of privacy. (CVE-2010-2946)

Tavis Ormandy discovered that the IRDA subsystem did not correctly shut
down. A local attacker could exploit this to cause the system to crash or
possibly gain root privileges. (CVE-2010-2954)

Brad Spengler discovered that the wireless extensions did not correctly
validate certain request sizes. A local attacker could exploit this to read
portions of kernel memory, leading to a loss of privacy. (CVE-2010-2955)

Ben Hawkes discovered an integer overflow in the Controller Area Network
(CVE-2010-2959)

Kees Cook discovered that the Intel i915 graphics driver did not correctly
validate memory regions. A local attacker with access to the video card
could read and write arbitrary kernel memory to gain root privileges.
Ubuntu 10.10 was not affected. (CVE-2010-2962)

Kees Cook discovered that the V4L1 32bit compat interface did not correctly
validate certain parameters. A local attacker on a 64bit system with access
to a video device could exploit this to gain root privileges.
(CVE-2010-2963)

Toshiyuki Okajima discovered that ext4 did not correctly check certain
parameters. A local attacker could exploit this to crash the system or
overwrite the last block of large files. (CVE-2010-3015)

Tavis Ormandy discovered that the AIO subsystem did not correctly validate
certain parameters. A local attacker could exploit this to crash the system
or possibly gain root privileges. (CVE-2010-3067)

Dan Rosenberg discovered that certain XFS ioctls leaked kernel stack
contents. A local attacker could exploit this to read portions of kernel
memory, leading to a loss of privacy. (CVE-2010-3078)

Robert Swiecki discovered that ftrace did not correctly handle mutexes. A
local attacker could exploit this to crash the kernel, leading to a denial
of service. (CVE-2010-3079)

Tavis Ormandy discovered that the OSS sequencer device did not correctly
shut down. A local attacker could exploit this to crash the system or
possibly gain root privileges. (CVE-2010-3080)

Ben Hawkes discovered that the Linux kernel did not correctly validate
memory ranges on 64bit kernels when allocating memory on behalf of 32bit
system calls. On a 64bit system, a local attacker could perform malicious
multicast getsockopt calls to gain root privileges. (CVE-2010-3081)

Dan Rosenberg discovered that several network ioctls did not clear kernel
memory correctly. A local user could exploit this to read kernel stack
memory, leading to a loss of privacy. (CVE-2010-3296, CVE-2010-3297,
CVE-2010-3298)

Ben Hawkes discovered that the Linux kernel did not correctly filter
registers on 64bit kernels when performing 32bit system calls. On a 64bit
system, a local attacker could manipulate 32bit system calls to gain root
privileges. (CVE-2010-3301)

Dan Rosenberg discovered that the ROSE driver did not correctly check
parameters. A local attacker with access to a ROSE network device could
exploit this to crash the system or possibly gain root privileges.
(CVE-2010-3310)

Thomas Dreibholz discovered that SCTP did not correctly handle appending
packet chunks. A remote attacker could send specially crafted traffic to
crash the system, leading to a denial of service. (CVE-2010-3432)

Dan Rosenberg discovered that the CD driver did not correctly check
parameters. A local attacker could exploit this to read arbitrary kernel
memory, leading to a loss of privacy. (CVE-2010-3437)

Dan Rosenberg discovered that the Sound subsystem did not correctly
validate parameters. A local attacker could exploit this to crash the
system, leading to a denial of service. (CVE-2010-3442)

Dan Jacobson discovered that ThinkPad video output was not correctly access
controlled. A local attacker could exploit this to hang the system, leading
to a denial of service. (CVE-2010-3448)

It was discovered that KVM did not correctly initialize certain CPU
registers. A local attacker could exploit this to crash the system, leading
to a denial of service. (CVE-2010-3698)

Dan Rosenberg discovered that SCTP did not correctly handle HMAC
calculations. A remote attacker could send specially crafted traffic that
would crash the system, leading to a denial of service. (CVE-2010-3705)

Nelson Elhage discovered several problems with the Acorn Econet protocol
driver. A local user could cause a denial of service via a NULL pointer
dereference, escalate privileges by overflowing the kernel stack, and
assign Econet addresses to arbitrary interfaces. (CVE-2010-3848,
CVE-2010-3849, CVE-2010-3850)

Brad Spengler discovered that stack memory for new a process was not
correctly calculated. A local attacker could exploit this to crash the
system, leading to a denial of service. (CVE-2010-3858)

Kees Cook discovered that the ethtool interface did not correctly clear
kernel memory. A local attacker could read kernel heap memory, leading to a
loss of privacy. (CVE-2010-3861)

Dan Rosenberg discovered that the RDS network protocol did not correctly
check certain parameters. A local attacker could exploit this gain root
privileges. (CVE-2010-3904)

Kees Cook and Vasiliy Kulikov discovered that the shm interface did not
clear kernel memory correctly. A local attacker could exploit this to read
kernel stack memory, leading to a loss of privacy. (CVE-2010-4072)

Dan Rosenberg discovered that IPC structures were not correctly initialized
on 64bit systems. A local attacker could exploit this to read kernel stack
memory, leading to a loss of privacy. (CVE-2010-4073)

Dan Rosenberg discovered that the USB subsystem did not correctly
initialize certian structures. A local attacker could exploit this to read
kernel stack memory, leading to a loss of privacy. (CVE-2010-4074)

Dan Rosenberg discovered that the SiS video driver did not correctly clear
kernel memory. A local attacker could exploit this to read kernel stack
memory, leading to a loss of privacy. (CVE-2010-4078)

Dan Rosenberg discovered that the ivtv V4L driver did not correctly
initialize certian structures. A local attacker could exploit this to read
kernel stack memory, leading to a loss of privacy. (CVE-2010-4079)

Steve Chen discovered that setsockopt did not correctly check MSS values. A
local attacker could make a specially crafted socket call to crash the
system, leading to a denial of service. (CVE-2010-4165)

Dave Jones discovered that the mprotect system call did not correctly
handle merged VMAs. A local attacker could exploit this to crash the
system, leading to a denial of service. (CVE-2010-4169)

Vegard Nossum discovered that memory garbage collection was not handled
correctly for active sockets. A local attacker could exploit this to
allocate all available kernel memory, leading to a denial of service.
(CVE-2010-4249)


Updated packages for Ubuntu 10.04 LTS:

Source archives:

http://security.ubuntu.com/ubuntu/pool/main/l/linux-fsl-imx51/linux-fsl-imx51_2.6.31-608.22.diff.gz
Size/MD5: 5419607 706cf2a475317d4d90b1d00dcc307d91
http://security.ubuntu.com/ubuntu/pool/main/l/linux-fsl-imx51/linux-fsl-imx51_2.6.31-608.22.dsc
Size/MD5: 2142 50a300a2181dd8bc5911d2a5ecfa5ecc
http://security.ubuntu.com/ubuntu/pool/main/l/linux-fsl-imx51/linux-fsl-imx51_2.6.31.orig.tar.gz
Size/MD5: 78278595 16c0355d3612806ef87addf7c9f8c9f9

armel architecture (ARM Architecture):

http://ports.ubuntu.com/pool/main/l/linux-fsl-imx51/block-modules-2.6.31-608-imx51-di_2.6.31-608.22_armel.udeb
Size/MD5: 97042 e2710f0635d8e4dac1c530c28d35c74d
http://ports.ubuntu.com/pool/main/l/linux-fsl-imx51/crypto-modules-2.6.31-608-imx51-di_2.6.31-608.22_armel.udeb
Size/MD5: 63554 655a51657347f8ea9aa70a304ea3027c
http://ports.ubuntu.com/pool/main/l/linux-fsl-imx51/fat-modules-2.6.31-608-imx51-di_2.6.31-608.22_armel.udeb
Size/MD5: 4506 e2de8ca0607335a7b6ea3614d888a5c0
http://ports.ubuntu.com/pool/main/l/linux-fsl-imx51/fs-core-modules-2.6.31-608-imx51-di_2.6.31-608.22_armel.udeb
Size/MD5: 549104 e175b3263d98623311a54dbea44c79b1
http://ports.ubuntu.com/pool/main/l/linux-fsl-imx51/fs-secondary-modules-2.6.31-608-imx51-di_2.6.31-608.22_armel.udeb
Size/MD5: 138172 96eeb5beda4443885ef36e71d7eb1b7b
http://ports.ubuntu.com/pool/main/l/linux-fsl-imx51/input-modules-2.6.31-608-imx51-di_2.6.31-608.22_armel.udeb
Size/MD5: 49920 3370ca2a9f576ccfd960881308ab1a26
http://ports.ubuntu.com/pool/main/l/linux-fsl-imx51/irda-modules-2.6.31-608-imx51-di_2.6.31-608.22_armel.udeb
Size/MD5: 211190 e53d6f947d367d210cad9cb2e4977851
http://ports.ubuntu.com/pool/main/l/linux-fsl-imx51/kernel-image-2.6.31-608-imx51-di_2.6.31-608.22_armel.udeb
Size/MD5: 3452834 4da6835c6b2cb80865efac16eef82ef9
http://ports.ubuntu.com/pool/main/l/linux-fsl-imx51/linux-headers-2.6.31-608-imx51_2.6.31-608.22_armel.deb
Size/MD5: 10662412 7bef7f93be2a55ddea53b912e1ea89a8
http://ports.ubuntu.com/pool/main/l/linux-fsl-imx51/linux-image-2.6.31-608-imx51_2.6.31-608.22_armel.deb
Size/MD5: 14581812 859cdc5d565181ae0ae5ecbc47d54d1b
http://ports.ubuntu.com/pool/main/l/linux-fsl-imx51/md-modules-2.6.31-608-imx51-di_2.6.31-608.22_armel.udeb
Size/MD5: 162252 dcde6ebcc11bb2902c5b7eff79c8a525
http://ports.ubuntu.com/pool/main/l/linux-fsl-imx51/mouse-modules-2.6.31-608-imx51-di_2.6.31-608.22_armel.udeb
Size/MD5: 24560 7d1fd91549950b8fb83c12e37c2031a9
http://ports.ubuntu.com/pool/main/l/linux-fsl-imx51/nfs-modules-2.6.31-608-imx51-di_2.6.31-608.22_armel.udeb
Size/MD5: 293432 4e0e461748f5422ffaf82a2ff94dd7fd
http://ports.ubuntu.com/pool/main/l/linux-fsl-imx51/nic-modules-2.6.31-608-imx51-di_2.6.31-608.22_armel.udeb
Size/MD5: 235466 702891f1bd2d2b554ae42429eedc865f
http://ports.ubuntu.com/pool/main/l/linux-fsl-imx51/nic-shared-modules-2.6.31-608-imx51-di_2.6.31-608.22_armel.udeb
Size/MD5: 184606 c95c2795f78020033df040dcef488262
http://ports.ubuntu.com/pool/main/l/linux-fsl-imx51/nic-usb-modules-2.6.31-608-imx51-di_2.6.31-608.22_armel.udeb
Size/MD5: 114276 30950c6036803696ebdc6dc127b00391
http://ports.ubuntu.com/pool/main/l/linux-fsl-imx51/parport-modules-2.6.31-608-imx51-di_2.6.31-608.22_armel.udeb
Size/MD5: 28206 2113950557647c58c7206c04343ea6e2
http://ports.ubuntu.com/pool/main/l/linux-fsl-imx51/plip-modules-2.6.31-608-imx51-di_2.6.31-608.22_armel.udeb
Size/MD5: 8230 baa53c8ee320a280b71326cba9b24ba9
http://ports.ubuntu.com/pool/main/l/linux-fsl-imx51/ppp-modules-2.6.31-608-imx51-di_2.6.31-608.22_armel.udeb
Size/MD5: 36158 fabaf847be6aa6d171e1ee69d72c958e
http://ports.ubuntu.com/pool/main/l/linux-fsl-imx51/sata-modules-2.6.31-608-imx51-di_2.6.31-608.22_armel.udeb
Size/MD5: 15604 d5dbbe7373865189facadc77631972b3
http://ports.ubuntu.com/pool/main/l/linux-fsl-imx51/scsi-modules-2.6.31-608-imx51-di_2.6.31-608.22_armel.udeb
Size/MD5: 190128 690d8cb90598dc713ec8f2a8af6a28e4
http://ports.ubuntu.com/pool/main/l/linux-fsl-imx51/serial-modules-2.6.31-608-imx51-di_2.6.31-608.22_armel.udeb
Size/MD5: 93842 17b01bdb419a2c743996c358db7f9b6c
http://ports.ubuntu.com/pool/main/l/linux-fsl-imx51/storage-core-modules-2.6.31-608-imx51-di_2.6.31-608.22_armel.udeb
Size/MD5: 21374 12a4687c68eee5729580895f9f96839a
http://ports.ubuntu.com/pool/main/l/linux-fsl-imx51/usb-modules-2.6.31-608-imx51-di_2.6.31-608.22_armel.udeb
Size/MD5: 115520 e6defcf60e47c050224a16a0ba15f8de

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