what you don't know can hurt you

Ubuntu Security Notice USN-1074-1

Ubuntu Security Notice USN-1074-1
Posted Feb 26, 2011
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1074-1 - 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 | 934d6a5d2bde45285650af4dbbaad8b2

Ubuntu Security Notice USN-1074-1

Change Mirror Download
===========================================================
Ubuntu Security Notice USN-1074-1 February 25, 2011
linux-fsl-imx51 vulnerabilities
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,
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,
===========================================================

A security issue affects the following Ubuntu releases:

Ubuntu 9.10

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 9.10:
linux-image-2.6.31-112-imx51 2.6.31-112.30

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

Details follow:

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 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 9.10:

Source archives:

http://security.ubuntu.com/ubuntu/pool/main/l/linux-fsl-imx51/linux-fsl-imx51_2.6.31-112.30.diff.gz
Size/MD5: 5689311 eb5f6fe8ea1ba1541908b6635b6eb070
http://security.ubuntu.com/ubuntu/pool/main/l/linux-fsl-imx51/linux-fsl-imx51_2.6.31-112.30.dsc
Size/MD5: 1389 9f183ebaeae4bc5f042e011c01a2d06b
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-2.6.31-112-imx51-di_2.6.31-112.30_armel.udeb
Size/MD5: 97392 be63ef29022f71ef81f0c5c0f7e5dff2
http://ports.ubuntu.com/pool/main/l/linux-fsl-imx51/crypto-modules-2.6.31-112-imx51-di_2.6.31-112.30_armel.udeb
Size/MD5: 62012 808419d720380dacfc7aa71eb8447553
http://ports.ubuntu.com/pool/main/l/linux-fsl-imx51/fat-modules-2.6.31-112-imx51-di_2.6.31-112.30_armel.udeb
Size/MD5: 4542 2c5d3a96da5f45c531bb20b423279fe7
http://ports.ubuntu.com/pool/main/l/linux-fsl-imx51/fs-core-modules-2.6.31-112-imx51-di_2.6.31-112.30_armel.udeb
Size/MD5: 548480 a0b16b84ff81a28d19d0ce5afc919083
http://ports.ubuntu.com/pool/main/l/linux-fsl-imx51/fs-secondary-modules-2.6.31-112-imx51-di_2.6.31-112.30_armel.udeb
Size/MD5: 138382 a0fb096a86472328492a20ee846da9ab
http://ports.ubuntu.com/pool/main/l/linux-fsl-imx51/input-modules-2.6.31-112-imx51-di_2.6.31-112.30_armel.udeb
Size/MD5: 50136 37a00bbbcc9b929ad363ea7db629e405
http://ports.ubuntu.com/pool/main/l/linux-fsl-imx51/irda-modules-2.6.31-112-imx51-di_2.6.31-112.30_armel.udeb
Size/MD5: 212326 7c76d661cb4f11fb53d61b795e8277f1
http://ports.ubuntu.com/pool/main/l/linux-fsl-imx51/kernel-image-2.6.31-112-imx51-di_2.6.31-112.30_armel.udeb
Size/MD5: 3417494 1e25b9c4dd46cbbd61d0e2a2f7647f3e
http://ports.ubuntu.com/pool/main/l/linux-fsl-imx51/linux-headers-2.6.31-112-imx51_2.6.31-112.30_armel.deb
Size/MD5: 673916 3602a6a08467cff3f063fa7d9acf4343
http://ports.ubuntu.com/pool/main/l/linux-fsl-imx51/linux-headers-2.6.31-112_2.6.31-112.30_armel.deb
Size/MD5: 9856034 69b7bc23b6a0ccd5911b8fe4279c89cb
http://ports.ubuntu.com/pool/main/l/linux-fsl-imx51/linux-image-2.6.31-112-imx51_2.6.31-112.30_armel.deb
Size/MD5: 14566916 593a2caa4da514cdd0e8663a5aa19f64
http://ports.ubuntu.com/pool/main/l/linux-fsl-imx51/md-modules-2.6.31-112-imx51-di_2.6.31-112.30_armel.udeb
Size/MD5: 163272 ad8a5437eeb796073116c0c60254e17c
http://ports.ubuntu.com/pool/main/l/linux-fsl-imx51/mouse-modules-2.6.31-112-imx51-di_2.6.31-112.30_armel.udeb
Size/MD5: 24552 c30bdc42f9f1b087dd62b912ae0fc002
http://ports.ubuntu.com/pool/main/l/linux-fsl-imx51/nfs-modules-2.6.31-112-imx51-di_2.6.31-112.30_armel.udeb
Size/MD5: 294586 8052e549fae8a4f8189a0f853c4825fe
http://ports.ubuntu.com/pool/main/l/linux-fsl-imx51/nic-modules-2.6.31-112-imx51-di_2.6.31-112.30_armel.udeb
Size/MD5: 236166 0df28001acd3f1cf5aa96dba8756022a
http://ports.ubuntu.com/pool/main/l/linux-fsl-imx51/nic-shared-modules-2.6.31-112-imx51-di_2.6.31-112.30_armel.udeb
Size/MD5: 184568 50564e0525ab647761b1011e145399a9
http://ports.ubuntu.com/pool/main/l/linux-fsl-imx51/nic-usb-modules-2.6.31-112-imx51-di_2.6.31-112.30_armel.udeb
Size/MD5: 112192 a66999a29ab17a23f464b124957e51f0
http://ports.ubuntu.com/pool/main/l/linux-fsl-imx51/parport-modules-2.6.31-112-imx51-di_2.6.31-112.30_armel.udeb
Size/MD5: 28190 546362055ae18b5c08f90e2eaf00b192
http://ports.ubuntu.com/pool/main/l/linux-fsl-imx51/plip-modules-2.6.31-112-imx51-di_2.6.31-112.30_armel.udeb
Size/MD5: 8218 a46998bb3c8a1f786aa840c4949e4c95
http://ports.ubuntu.com/pool/main/l/linux-fsl-imx51/ppp-modules-2.6.31-112-imx51-di_2.6.31-112.30_armel.udeb
Size/MD5: 36380 657ccd6145488ad41b788472cb5137ae
http://ports.ubuntu.com/pool/main/l/linux-fsl-imx51/sata-modules-2.6.31-112-imx51-di_2.6.31-112.30_armel.udeb
Size/MD5: 15622 56616f349c347568528cb7737e1863bb
http://ports.ubuntu.com/pool/main/l/linux-fsl-imx51/scsi-modules-2.6.31-112-imx51-di_2.6.31-112.30_armel.udeb
Size/MD5: 191494 53d973ce8597fa35e948f633296f512b
http://ports.ubuntu.com/pool/main/l/linux-fsl-imx51/serial-modules-2.6.31-112-imx51-di_2.6.31-112.30_armel.udeb
Size/MD5: 93934 85515ab49064d8eab991be7b32d28551
http://ports.ubuntu.com/pool/main/l/linux-fsl-imx51/storage-core-modules-2.6.31-112-imx51-di_2.6.31-112.30_armel.udeb
Size/MD5: 21332 cbe570516cc3851629929202ad80a4f3
http://ports.ubuntu.com/pool/main/l/linux-fsl-imx51/usb-modules-2.6.31-112-imx51-di_2.6.31-112.30_armel.udeb
Size/MD5: 114184 67f6388b95d37d032147638daf363e22

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