Category Archives: Ubuntu

Ubuntu Security Notices

USN-2377-1: Linux kernel (OMAP4) vulnerabilities

Ubuntu Security Notice USN-2377-1

9th October, 2014

linux-ti-omap4 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-ti-omap4
    – Linux kernel for OMAP4

Details

Steven Vittitoe reported multiple stack buffer overflows in Linux kernel’s
magicmouse HID driver. A physically proximate attacker could exploit this
flaw to cause a denial of service (system crash) or possibly execute
arbitrary code via specially crafted devices. (CVE-2014-3181)

Ben Hawkes reported some off by one errors for report descriptors in the
Linux kernel’s HID stack. A physically proximate attacker could exploit
these flaws to cause a denial of service (out-of-bounds write) via a
specially crafted device. (CVE-2014-3184)

Several bounds check flaws allowing for buffer overflows were discovered in
the Linux kernel’s Whiteheat USB serial driver. A physically proximate
attacker could exploit these flaws to cause a denial of service (system
crash) via a specially crafted device. (CVE-2014-3185)

Steven Vittitoe reported a buffer overflow in the Linux kernel’s PicoLCD
HID device driver. A physically proximate attacker could exploit this flaw
to cause a denial of service (system crash) or possibly execute arbitrary
code via a specially craft device. (CVE-2014-3186)

A flaw was discovered in the Linux kernel’s UDF filesystem (used on some
CD-ROMs and DVDs) when processing indirect ICBs. An attacker who can cause
CD, DVD or image file with a specially crafted inode to be mounted can
cause a denial of service (infinite loop or stack consumption).
(CVE-2014-6410)

James Eckersall discovered a buffer overflow in the Ceph filesystem in the
Linux kernel. A remote attacker could exploit this flaw to cause a denial
of service (memory consumption and panic) or possibly have other
unspecified impact via a long unencrypted auth ticket. (CVE-2014-6416)

James Eckersall discovered a flaw in the handling of memory allocation
failures in the Ceph filesystem. A remote attacker could exploit this flaw
to cause a denial of service (system crash) or possibly have unspecified
other impact. (CVE-2014-6417)

James Eckersall discovered a flaw in how the Ceph filesystem validates auth
replies. A remote attacker could exploit this flaw to cause a denial of
service (system crash) or possibly have other unspecified impact.
(CVE-2014-6418)

Update instructions

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

Ubuntu 12.04 LTS:
linux-image-3.2.0-1455-omap4

3.2.0-1455.75

To update your system, please follow these instructions:
https://wiki.ubuntu.com/Security/Upgrades.

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

CVE-2014-3181,

CVE-2014-3184,

CVE-2014-3185,

CVE-2014-3186,

CVE-2014-6410,

CVE-2014-6416,

CVE-2014-6417,

CVE-2014-6418

USN-2376-1: Linux kernel vulnerabilities

Ubuntu Security Notice USN-2376-1

9th October, 2014

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

Steven Vittitoe reported multiple stack buffer overflows in Linux kernel’s
magicmouse HID driver. A physically proximate attacker could exploit this
flaw to cause a denial of service (system crash) or possibly execute
arbitrary code via specially crafted devices. (CVE-2014-3181)

Ben Hawkes reported some off by one errors for report descriptors in the
Linux kernel’s HID stack. A physically proximate attacker could exploit
these flaws to cause a denial of service (out-of-bounds write) via a
specially crafted device. (CVE-2014-3184)

Several bounds check flaws allowing for buffer overflows were discovered in
the Linux kernel’s Whiteheat USB serial driver. A physically proximate
attacker could exploit these flaws to cause a denial of service (system
crash) via a specially crafted device. (CVE-2014-3185)

Steven Vittitoe reported a buffer overflow in the Linux kernel’s PicoLCD
HID device driver. A physically proximate attacker could exploit this flaw
to cause a denial of service (system crash) or possibly execute arbitrary
code via a specially craft device. (CVE-2014-3186)

A flaw was discovered in the Linux kernel’s UDF filesystem (used on some
CD-ROMs and DVDs) when processing indirect ICBs. An attacker who can cause
CD, DVD or image file with a specially crafted inode to be mounted can
cause a denial of service (infinite loop or stack consumption).
(CVE-2014-6410)

James Eckersall discovered a buffer overflow in the Ceph filesystem in the
Linux kernel. A remote attacker could exploit this flaw to cause a denial
of service (memory consumption and panic) or possibly have other
unspecified impact via a long unencrypted auth ticket. (CVE-2014-6416)

James Eckersall discovered a flaw in the handling of memory allocation
failures in the Ceph filesystem. A remote attacker could exploit this flaw
to cause a denial of service (system crash) or possibly have unspecified
other impact. (CVE-2014-6417)

James Eckersall discovered a flaw in how the Ceph filesystem validates auth
replies. A remote attacker could exploit this flaw to cause a denial of
service (system crash) or possibly have other unspecified impact.
(CVE-2014-6418)

Update instructions

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

Ubuntu 12.04 LTS:
linux-image-3.2.0-70-generic-pae

3.2.0-70.105
linux-image-3.2.0-70-omap

3.2.0-70.105
linux-image-3.2.0-70-powerpc-smp

3.2.0-70.105
linux-image-3.2.0-70-powerpc64-smp

3.2.0-70.105
linux-image-3.2.0-70-generic

3.2.0-70.105
linux-image-3.2.0-70-highbank

3.2.0-70.105
linux-image-3.2.0-70-virtual

3.2.0-70.105

To update your system, please follow these instructions:
https://wiki.ubuntu.com/Security/Upgrades.

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

CVE-2014-3181,

CVE-2014-3184,

CVE-2014-3185,

CVE-2014-3186,

CVE-2014-6410,

CVE-2014-6416,

CVE-2014-6417,

CVE-2014-6418

USN-2375-1: Linux kernel (EC2) vulnerabilities

Ubuntu Security Notice USN-2375-1

9th October, 2014

linux-ec2 vulnerabilities

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

  • Ubuntu 10.04 LTS

Summary

Several security issues were fixed in the kernel.

Software description

  • linux-ec2
    – Linux kernel for EC2

Details

Ben Hawkes reported some off by one errors for report descriptors in the
Linux kernel’s HID stack. A physically proximate attacker could exploit
these flaws to cause a denial of service (out-of-bounds write) via a
specially crafted device. (CVE-2014-3184)

Several bounds check flaws allowing for buffer overflows were discovered in
the Linux kernel’s Whiteheat USB serial driver. A physically proximate
attacker could exploit these flaws to cause a denial of service (system
crash) via a specially crafted device. (CVE-2014-3185)

A flaw was discovered in the Linux kernel’s UDF filesystem (used on some
CD-ROMs and DVDs) when processing indirect ICBs. An attacker who can cause
CD, DVD or image file with a specially crafted inode to be mounted can
cause a denial of service (infinite loop or stack consumption).
(CVE-2014-6410)

Update instructions

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

Ubuntu 10.04 LTS:
linux-image-2.6.32-371-ec2

2.6.32-371.87

To update your system, please follow these instructions:
https://wiki.ubuntu.com/Security/Upgrades.

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

CVE-2014-3184,

CVE-2014-3185,

CVE-2014-6410

USN-2381-1: Rsyslog vulnerabilities

Ubuntu Security Notice USN-2381-1

9th October, 2014

rsyslog vulnerabilities

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

  • Ubuntu 14.04 LTS
  • Ubuntu 12.04 LTS
  • Ubuntu 10.04 LTS

Summary

Rsyslog could be made to crash if it received specially crafted input.

Software description

  • rsyslog
    – Enhanced syslogd

Details

It was discovered that Rsyslog incorrectly handled invalid PRI values. An
attacker could use this issue to send malformed messages to the Rsyslog
server and cause it to stop responding, resulting in a denial of service
and possibly message loss. (CVE-2014-3634, CVE-2014-3683)

Update instructions

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

Ubuntu 14.04 LTS:
rsyslog

7.4.4-1ubuntu2.3
Ubuntu 12.04 LTS:
rsyslog

5.8.6-1ubuntu8.9
Ubuntu 10.04 LTS:
rsyslog

4.2.0-2ubuntu8.3

To update your system, please follow these instructions:
https://wiki.ubuntu.com/Security/Upgrades.

In general, a standard system update will make all the necessary changes.

References

CVE-2014-3634,

CVE-2014-3683