exploit the possibilities

Ubuntu Security Notice USN-1767-1

Ubuntu Security Notice USN-1767-1
Posted Mar 19, 2013
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1767-1 - Andrew Cooper of Citrix reported a Xen stack corruption in the Linux kernel. An unprivileged user in a 32bit PVOPS guest can cause the guest kernel to crash, or operate erroneously. A failure to validate input was discovered in the Linux kernel's Xen netback (network backend) driver. A user in a guest OS may exploit this flaw to cause a denial of service to the guest OS and other guest domains. Various other issues were also addressed.

tags | advisory, denial of service, kernel
systems | linux, ubuntu
advisories | CVE-2013-0190, CVE-2013-0216, CVE-2013-0217, CVE-2013-0228, CVE-2013-0231, CVE-2013-0268, CVE-2013-0311, CVE-2013-0313, CVE-2013-0349, CVE-2013-1774, CVE-2013-0190, CVE-2013-0216, CVE-2013-0217, CVE-2013-0228, CVE-2013-0231, CVE-2013-0268, CVE-2013-0311, CVE-2013-0313, CVE-2013-0349, CVE-2013-1774
MD5 | b4722f2bde05c5e4fd7583d00fd3895f

Ubuntu Security Notice USN-1767-1

Change Mirror Download
============================================================================
Ubuntu Security Notice USN-1767-1
March 18, 2013

linux vulnerabilities
============================================================================

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

- Ubuntu 12.04 LTS

Summary:

Several security issues were fixed in the kernel.

Software Description:
- linux: Linux kernel

Details:

Andrew Cooper of Citrix reported a Xen stack corruption in the Linux
kernel. An unprivileged user in a 32bit PVOPS guest can cause the guest
kernel to crash, or operate erroneously. (CVE-2013-0190)

A failure to validate input was discovered in the Linux kernel's Xen
netback (network backend) driver. A user in a guest OS may exploit this
flaw to cause a denial of service to the guest OS and other guest domains.
(CVE-2013-0216)

A memory leak was discovered in the Linux kernel's Xen netback (network
backend) driver. A user in a guest OS could trigger this flaw to cause a
denial of service on the system. (CVE-2013-0217)

Andrew Jones discovered a flaw with the xen_iret function in Linux kernel's
Xen virtualizeation. In the 32-bit Xen paravirt platform an unprivileged
guest OS user could exploit this flaw to cause a denial of service (crash
the system) or gain guest OS privilege. (CVE-2013-0228)

A flaw was discovered in the Linux kernel Xen PCI backend driver. If a PCI
device is assigned to the guest OS, the guest OS could exploit this flaw to
cause a denial of service on the host. (CVE-2013-0231)

A flaw was reported in the permission checks done by the Linux kernel for
/dev/cpu/*/msr. A local root user with all capabilities dropped could
exploit this flaw to execute code with full root capabilities.
(CVE-2013-0268)

A flaw was discovered in the Linux kernel's vhost driver used to accelerate
guest networking in KVM based virtual machines. A privileged guest user
could exploit this flaw to crash the host system. (CVE-2013-0311)

A flaw was discovered in the Extended Verification Module (EVM) of the
Linux kernel. An unprivileged local user code exploit this flaw to cause a
denial of service (system crash). (CVE-2013-0313)

An information leak was discovered in the Linux kernel's Bluetooth stack
when HIDP (Human Interface Device Protocol) support is enabled. A local
unprivileged user could exploit this flaw to cause an information leak from
the kernel. (CVE-2013-0349)

A flaw was discovered in the Edgeort USB serial converter driver when the
device is disconnected while it is in use. A local user could exploit this
flaw to cause a denial of service (system crash). (CVE-2013-1774)

Update instructions:

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

Ubuntu 12.04 LTS:
linux-image-3.2.0-39-generic 3.2.0-39.62
linux-image-3.2.0-39-generic-pae 3.2.0-39.62
linux-image-3.2.0-39-highbank 3.2.0-39.62
linux-image-3.2.0-39-omap 3.2.0-39.62
linux-image-3.2.0-39-powerpc-smp 3.2.0-39.62
linux-image-3.2.0-39-powerpc64-smp 3.2.0-39.62
linux-image-3.2.0-39-virtual 3.2.0-39.62

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-1767-1
CVE-2013-0190, CVE-2013-0216, CVE-2013-0217, CVE-2013-0228,
CVE-2013-0231, CVE-2013-0268, CVE-2013-0311, CVE-2013-0313,
CVE-2013-0349, CVE-2013-1774

Package Information:
https://launchpad.net/ubuntu/+source/linux/3.2.0-39.62
Login or Register to add favorites

File Archive:

October 2021

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

Top Authors In Last 30 Days

File Tags

Systems

packet storm

© 2020 Packet Storm. All rights reserved.

Services
Security Services
Hosting By
Rokasec
close