Ubuntu Security Notice USN-2337-1

2nd September, 2014

linux vulnerabilities

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

• Ubuntu 14.04 LTS

Summary

Several security issues were fixed in the kernel.

Software description

• linux
  – Linux kernel

Details

A flaw was discovered in the Linux kernel virtual machine’s (kvm)
validation of interrupt requests (irq). A guest OS user could exploit this
flaw to cause a denial of service (host OS crash). (CVE-2014-0155)

Andy Lutomirski discovered a flaw in the authorization of netlink socket
operations when a socket is passed to a process of more privilege. A local
user could exploit this flaw to bypass access restrictions by having a
privileged executable do something it was not intended to do.
(CVE-2014-0181)

An information leak was discovered in the Linux kernels
aio_read_events_ring function. A local user could exploit this flaw to
obtain potentially sensitive information from kernel memory.
(CVE-2014-0206)

A flaw was discovered in the Linux kernel’s implementation of user
namespaces with respect to inode permissions. A local user could exploit
this flaw by creating a user namespace to gain administrative privileges.
(CVE-2014-4014)

An information leak was discovered in the rd_mcp backend of the iSCSI
target subsystem in the Linux kernel. A local user could exploit this flaw
to obtain sensitive information from ramdisk_mcp memory by leveraging
access to a SCSI initiator. (CVE-2014-4027)

Sasha Levin reported an issue with the Linux kernel’s shared memory
subsystem when used with range notifications and hole punching. A local
user could exploit this flaw to cause a denial of service. (CVE-2014-4171)

Toralf Förster reported an error in the Linux kernels syscall auditing on
32 bit x86 platforms. A local user could exploit this flaw to cause a
denial of service (OOPS and system crash). (CVE-2014-4508)

An information leak was discovered in the control implemenation of the
Advanced Linux Sound Architecture (ALSA) subsystem in the Linux kernel. A
local user could exploit this flaw to obtain sensitive information from
kernel memory. (CVE-2014-4652)

A use-after-free flaw was discovered in the Advanced Linux Sound
Architecture (ALSA) control implementation of the Linux kernel. A local
user could exploit this flaw to cause a denial of service (system crash).
(CVE-2014-4653)

A authorization bug was discovered with the snd_ctl_elem_add function of
the Advanced Linux Sound Architecture (ALSA) in the Linux kernel. A local
user could exploit his bug to cause a denial of service (remove kernel
controls). (CVE-2014-4654)

A flaw discovered in how the snd_ctl_elem function of the Advanced Linux
Sound Architecture (ALSA) handled a reference count. A local user could
exploit this flaw to cause a denial of service (integer overflow and limit
bypass). (CVE-2014-4655)

An integer overflow flaw was discovered in the control implementation of
the Advanced Linux Sound Architecture (ALSA). A local user could exploit
this flaw to cause a denial of service (system crash). (CVE-2014-4656)

An integer underflow flaw was discovered in the Linux kernel’s handling of
the backlog value for certain SCTP packets. A remote attacker could exploit
this flaw to cause a denial of service (socket outage) via a crafted SCTP
packet. (CVE-2014-4667)

Vasily Averin discover a reference count flaw during attempts to umount in
conjunction with a symlink. A local user could exploit this flaw to cause a
denial of service (memory consumption or use after free) or possibly have
other unspecified impact. (CVE-2014-5045)

Update instructions

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

Ubuntu 14.04 LTS:

linux-image-3.13.0-35-generic-lpae

3.13.0-35.62

linux-image-3.13.0-35-powerpc64-emb

3.13.0-35.62

linux-image-3.13.0-35-powerpc64-smp

3.13.0-35.62

linux-image-3.13.0-35-powerpc-e500

3.13.0-35.62

linux-image-3.13.0-35-generic

3.13.0-35.62

linux-image-3.13.0-35-lowlatency

3.13.0-35.62

linux-image-3.13.0-35-powerpc-smp

3.13.0-35.62

linux-image-3.13.0-35-powerpc-e500mc

3.13.0-35.62

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-2014-0155,

CVE-2014-0181,

CVE-2014-0206,

CVE-2014-4014,

CVE-2014-4027,

CVE-2014-4171,

CVE-2014-4508,

CVE-2014-4652,

CVE-2014-4653,

CVE-2014-4654,

CVE-2014-4655,

CVE-2014-4656,

CVE-2014-4667,

CVE-2014-5045

Ubuntu Security Notice USN-2329-1

2nd September, 2014

firefox vulnerabilities

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

• Ubuntu 14.04 LTS
• Ubuntu 12.04 LTS

Summary

Firefox could be made to crash or run programs as your login if it
opened a malicious website.

Software description

• firefox
  – Mozilla Open Source web browser

Details

Jan de Mooij, Christian Holler, Karl Tomlinson, Randell Jesup, Gary Kwong,
Jesse Ruderman, JW Wang and David Weir discovered multiple memory safety
issues in Firefox. If a user were tricked in to opening a specially
crafted website, an attacker could potentially exploit these to cause a
denial of service via application crash, or execute arbitrary code with
the privileges of the user invoking Firefox. (CVE-2014-1553,
CVE-2014-1554, CVE-2014-1562)

Abhishek Arya discovered a use-after-free during DOM interactions with
SVG. If a user were tricked in to opening a specially crafted page, an
attacker could potentially exploit this to cause a denial of service via
application crash or execute arbitrary code with the privileges of the
user invoking Firefox. (CVE-2014-1563)

Michal Zalewski discovered that memory is not initialized properly during
GIF rendering in some circumstances. If a user were tricked in to opening
a specially crafted page, an attacker could potentially exploit this to
steal confidential information. (CVE-2014-1564)

Holger Fuhrmannek discovered an out-of-bounds read in Web Audio. If a
user were tricked in to opening a specially crafted website, an attacker
could potentially exploit this to cause a denial of service via
application crash or steal confidential information. (CVE-2014-1565)

A use-after-free was discovered during text layout in some circumstances.
If a user were tricked in to opening a specially crafted website, an
attacker could potentially exploit this to cause a denial of service via
application crash or execute arbitrary code with the privileges of the
user invoking Firefox. (CVE-2014-1567)

Update instructions

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

Ubuntu 14.04 LTS:

firefox

32.0+build1-0ubuntu0.14.04.1

Ubuntu 12.04 LTS:

firefox

32.0+build1-0ubuntu0.12.04.1

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

After a standard system update you need to restart Firefox to make
all the necessary changes.

References

CVE-2014-1553,

CVE-2014-1554,

CVE-2014-1562,

CVE-2014-1563,

CVE-2014-1564,

CVE-2014-1565,

CVE-2014-1567

Ubuntu Security Notice USN-2326-1

2nd September, 2014

oxide-qt vulnerabilities

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

• Ubuntu 14.04 LTS

Summary

Several security issues were fixed in Oxide.

Software description

• oxide-qt
  – Web browser engine library for Qt (QML plugin)

Details

A use-after-free was discovered in the SVG implementation in Blink. If a
user were tricked in to opening a specially crafted website, an attacker
could potentially exploit this to cause a denial of service via renderer
crash, or execute arbitrary code with the privileges of the sandboxed
render process. (CVE-2014-3168)

A use-after-free was discovered in the DOM implementation in Blink. If a
user were tricked in to opening a specially crafted website, an attacker
could potentially exploit this to cause a denial of service via renderer
crash, or execute arbitrary code with the privileges of the sandboxed
render process. (CVE-2014-3169)

A use-after-free was discovered in V8. If a user were tricked in to
opening a specially crafted website, an attacker could potentially exploit
this to cause a denial of service via renderer crash, or execute arbitrary
code with the privileges of the sandboxed render process. (CVE-2014-3171)

It was discovered that WebGL clear calls did not interact properly with
the state of a draw buffer. If a user were tricked in to opening a
specially crafted website, an attacker could potentially exploit this to
cause a denial of service. (CVE-2014-3173)

A threading issue was discovered in the Web Audio API during attempts to
update biquad filter coefficients. If a user were tricked in to opening a
specially crafted website, an attacker could potentially exploit this to
cause a denial of service. (CVE-2014-3174)

Multiple security issues were discovered in Chromium. If a user were
tricked in to opening a specially crafted website, an attacker could
potentially exploit these to read uninitialized memory, cause a denial of
service via application crash or execute arbitrary code with the
privileges of the user invoking the program. (CVE-2014-3175)

Update instructions

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

Ubuntu 14.04 LTS:

liboxideqtcore0

1.1.2-0ubuntu0.14.04.1

oxideqt-codecs

1.1.2-0ubuntu0.14.04.1

oxideqt-codecs-extra

1.1.2-0ubuntu0.14.04.1

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-2014-3168,

CVE-2014-3169,

CVE-2014-3171,

CVE-2014-3173,

CVE-2014-3174,

CVE-2014-3175

Ubuntu Security Notice USN-2338-1

3rd September, 2014

lua5.1 vulnerability

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

• Ubuntu 14.04 LTS
• Ubuntu 12.04 LTS

Summary

Lua could be made to crash or run programs.

Software description

• lua5.1
  – Simple, extensible, embeddable programming language

Details

It was discovered that Lua incorrectly handled certain vararg functions
with a large number of fixed parameters. An attacker could use this issue
to cause Lua applications to crash, resulting in a denial of service, or
possibly execute arbitrary code.

Update instructions

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

Ubuntu 14.04 LTS:

liblua5.1-0

5.1.5-5ubuntu0.1

lua5.1

5.1.5-5ubuntu0.1

Ubuntu 12.04 LTS:

liblua5.1-0

5.1.4-12ubuntu1.1

lua5.1

5.1.4-12ubuntu1.1

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-2014-5461