what you don't know can hurt you

Ubuntu Security Notice USN-1532-1

Ubuntu Security Notice USN-1532-1
Posted Aug 13, 2012
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1532-1 - An error was discovered in the Linux kernel's network TUN/TAP device implementation. A local user with access to the TUN/TAP interface (which is not available to unprivileged users until granted by a root user) could exploit this flaw to crash the system or potential gain administrative privileges. Ulrich Obergfell discovered an error in the Linux kernel's memory management subsystem on 32 bit PAE systems with more than 4GB of memory installed. A local unprivileged user could exploit this flaw to crash the system. Various other issues were also addressed.

tags | advisory, kernel, local, root
systems | linux, ubuntu
advisories | CVE-2012-2136, CVE-2012-2373, CVE-2012-3375, CVE-2012-3400, CVE-2012-2136, CVE-2012-2373, CVE-2012-3375, CVE-2012-3400
MD5 | 643e40ef4808b43a2dda3fe2a84ff6d9

Ubuntu Security Notice USN-1532-1

Change Mirror Download
============================================================================
Ubuntu Security Notice USN-1532-1
August 10, 2012

linux-ti-omap4 vulnerabilities
============================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 11.10

Summary:

Several security issues were fixed in the kernel.

Software Description:
- linux-ti-omap4: Linux kernel for OMAP4

Details:

An error was discovered in the Linux kernel's network TUN/TAP device
implementation. A local user with access to the TUN/TAP interface (which is
not available to unprivileged users until granted by a root user) could
exploit this flaw to crash the system or potential gain administrative
privileges. (CVE-2012-2136)

Ulrich Obergfell discovered an error in the Linux kernel's memory
management subsystem on 32 bit PAE systems with more than 4GB of memory
installed. A local unprivileged user could exploit this flaw to crash the
system. (CVE-2012-2373)

A flaw was discovered in the Linux kernel's epoll system call. An
unprivileged local user could use this flaw to crash the system.
(CVE-2012-3375)

Some errors where discovered in the Linux kernel's UDF file system, which
is used to mount some CD-ROMs and DVDs. An unprivileged local user could
use these flaws to crash the system. (CVE-2012-3400)

Update instructions:

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

Ubuntu 11.10:
linux-image-3.0.0-1214-omap4 3.0.0-1214.26

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

ATTENTION: Due to an unavoidable ABI change the kernel updates have
been given a new version number, which requires you to recompile and
reinstall all third party kernel modules you might have installed. If
you use linux-restricted-modules, you have to update that package as
well to get modules which work with the new kernel version. Unless you
manually uninstalled the standard kernel metapackages (e.g. linux-generic,
linux-server, linux-powerpc), a standard system upgrade will automatically
perform this as well.

References:
http://www.ubuntu.com/usn/usn-1532-1
CVE-2012-2136, CVE-2012-2373, CVE-2012-3375, CVE-2012-3400

Package Information:
https://launchpad.net/ubuntu/+source/linux-ti-omap4/3.0.0-1214.26

Comments

RSS Feed Subscribe to this comment feed

No comments yet, be the first!

Login or Register to post a comment

File Archive:

May 2019

  • Su
  • Mo
  • Tu
  • We
  • Th
  • Fr
  • Sa
  • 1
    May 1st
    16 Files
  • 2
    May 2nd
    8 Files
  • 3
    May 3rd
    8 Files
  • 4
    May 4th
    2 Files
  • 5
    May 5th
    1 Files
  • 6
    May 6th
    15 Files
  • 7
    May 7th
    22 Files
  • 8
    May 8th
    16 Files
  • 9
    May 9th
    17 Files
  • 10
    May 10th
    16 Files
  • 11
    May 11th
    3 Files
  • 12
    May 12th
    4 Files
  • 13
    May 13th
    25 Files
  • 14
    May 14th
    24 Files
  • 15
    May 15th
    78 Files
  • 16
    May 16th
    16 Files
  • 17
    May 17th
    16 Files
  • 18
    May 18th
    2 Files
  • 19
    May 19th
    1 Files
  • 20
    May 20th
    11 Files
  • 21
    May 21st
    21 Files
  • 22
    May 22nd
    20 Files
  • 23
    May 23rd
    36 Files
  • 24
    May 24th
    2 Files
  • 25
    May 25th
    0 Files
  • 26
    May 26th
    0 Files
  • 27
    May 27th
    0 Files
  • 28
    May 28th
    0 Files
  • 29
    May 29th
    0 Files
  • 30
    May 30th
    0 Files
  • 31
    May 31st
    0 Files

Top Authors In Last 30 Days

File Tags

Systems

packet storm

© 2019 Packet Storm. All rights reserved.

Services
Security Services
Hosting By
Rokasec
close