Message-ID: <20110228200241.GZ4669@outflux.net>
Date: Mon, 28 Feb 2011 12:02:41 -0800
From: Kees Cook <kees@...ntu.com>
To: ubuntu-security-announce@...ts.ubuntu.com
Cc: bugtraq@...urityfocus.com, full-disclosure@...ts.grok.org.uk
Subject: [USN-1074-2] Linux kernel vulnerabilities

===========================================================
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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