Ubuntu Security Notice USN-3194-1

8th February, 2017

openjdk-7 vulnerabilities

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

• Ubuntu 14.04 LTS

Summary

Several security issues were fixed in OpenJDK 7.

Software description

• openjdk-7
  – Open Source Java implementation

Details

Karthik Bhargavan and Gaetan Leurent discovered that the DES and
Triple DES ciphers were vulnerable to birthday attacks. A remote
attacker could possibly use this flaw to obtain clear text data from
long encrypted sessions. This update moves those algorithms to the
legacy algorithm set and causes them to be used only if no non-legacy
algorithms can be negotiated. (CVE-2016-2183)

It was discovered that OpenJDK accepted ECSDA signatures using
non-canonical DER encoding. An attacker could use this to modify or
expose sensitive data. (CVE-2016-5546)

It was discovered that OpenJDK did not properly verify object
identifier (OID) length when reading Distinguished Encoding Rules
(DER) records, as used in x.509 certificates and elsewhere. An
attacker could use this to cause a denial of service (memory
consumption). (CVE-2016-5547)

It was discovered that covert timing channel vulnerabilities existed
in the DSA implementations in OpenJDK. A remote attacker could use
this to expose sensitive information. (CVE-2016-5548)

It was discovered that the URLStreamHandler class in OpenJDK did not
properly parse user information from a URL. A remote attacker could
use this to expose sensitive information. (CVE-2016-5552)

It was discovered that the URLClassLoader class in OpenJDK did not
properly check access control context when downloading class files. A
remote attacker could use this to expose sensitive information.
(CVE-2017-3231)

It was discovered that the Remote Method Invocation (RMI)
implementation in OpenJDK performed deserialization of untrusted
inputs. A remote attacker could use this to execute arbitrary
code. (CVE-2017-3241)

It was discovered that the Java Authentication and Authorization
Service (JAAS) component of OpenJDK did not properly perform user
search LDAP queries. An attacker could use a specially constructed
LDAP entry to expose or modify sensitive information. (CVE-2017-3252)

It was discovered that the PNGImageReader class in OpenJDK did not
properly handle iTXt and zTXt chunks. An attacker could use this to
cause a denial of service (memory consumption). (CVE-2017-3253)

It was discovered that integer overflows existed in the
SocketInputStream and SocketOutputStream classes of OpenJDK. An
attacker could use this to expose sensitive information.
(CVE-2017-3261)

It was discovered that the atomic field updaters in the
java.util.concurrent.atomic package in OpenJDK did not properly
restrict access to protected field members. An attacker could use
this to specially craft a Java application or applet that could bypass
Java sandbox restrictions. (CVE-2017-3272)

It was discovered that a vulnerability existed in the class
construction implementation in OpenJDK. An attacker could use this
to specially craft a Java application or applet that could bypass
Java sandbox restrictions. (CVE-2017-3289)

Update instructions

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

Ubuntu 14.04 LTS:

openjdk-7-jre-zero

7u121-2.6.8-1ubuntu0.14.04.3

icedtea-7-jre-jamvm

7u121-2.6.8-1ubuntu0.14.04.3

openjdk-7-jre-headless

7u121-2.6.8-1ubuntu0.14.04.3

openjdk-7-jdk

7u121-2.6.8-1ubuntu0.14.04.3

openjdk-7-jre

7u121-2.6.8-1ubuntu0.14.04.3

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

This update uses a new upstream release, which includes additional
bug fixes. After a standard system update you need to restart any
Java applications or applets to make all the necessary changes.

References

CVE-2016-2183,

CVE-2016-5546,

CVE-2016-5547,

CVE-2016-5548,

CVE-2016-5552,

CVE-2017-3231,

CVE-2017-3241,

CVE-2017-3252,

CVE-2017-3253,

CVE-2017-3261,

CVE-2017-3272,

CVE-2017-3289

Ubuntu Security Notice USN-3187-2

9th February, 2017

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

Andrey Konovalov discovered that the SCTP implementation in the Linux
kernel improperly handled validation of incoming data. A remote attacker
could use this to cause a denial of service (system crash). (CVE-2016-9555)

It was discovered that multiple memory leaks existed in the XFS
implementation in the Linux kernel. A local attacker could use this to
cause a denial of service (memory consumption). (CVE-2016-9685)

Update instructions

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

Ubuntu 12.04 LTS:

linux-image-omap4

3.2.0.1499.94

linux-image-3.2.0-1499-omap4

3.2.0-1499.126

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.
Unless you manually uninstalled the standard kernel metapackages
(e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual,
linux-powerpc), a standard system upgrade will automatically perform
this as well.

References

CVE-2016-9555,

CVE-2016-9685

Ubuntu Security Notice USN-3190-2

9th February, 2017

linux-raspi2 vulnerabilities

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

• Ubuntu 16.10

Summary

Several security issues were fixed in the kernel.

Software description

• linux-raspi2
  – Linux kernel for Raspberry Pi 2

Details

Mikulas Patocka discovered that the asynchronous multibuffer cryptographic
daemon (mcryptd) in the Linux kernel did not properly handle being invoked
with incompatible algorithms. A local attacker could use this to cause a
denial of service (system crash). (CVE-2016-10147)

It was discovered that a use-after-free existed in the KVM susbsystem of
the Linux kernel when creating devices. A local attacker could use this to
cause a denial of service (system crash). (CVE-2016-10150)

Qidan He discovered that the ICMP implementation in the Linux kernel did
not properly check the size of an ICMP header. A local attacker with
CAP_NET_ADMIN could use this to expose sensitive information.
(CVE-2016-8399)

Qian Zhang discovered a heap-based buffer overflow in the tipc_msg_build()
function in the Linux kernel. A local attacker could use to cause a denial
of service (system crash) or possible execute arbitrary code with
administrative privileges. (CVE-2016-8632)

Dmitry Vyukov discovered that the KVM implementation in the Linux kernel
did not properly restrict the VCPU index when I/O APIC is enabled, An
attacker in a guest VM could use this to cause a denial of service (system
crash) or possibly gain privileges in the host OS. (CVE-2016-9777)

Update instructions

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

Ubuntu 16.10:

linux-image-4.8.0-1024-raspi2

4.8.0-1024.27

linux-image-raspi2

4.8.0.1024.27

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.
Unless you manually uninstalled the standard kernel metapackages
(e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual,
linux-powerpc), a standard system upgrade will automatically perform
this as well.

References

CVE-2016-10147,

CVE-2016-10150,

CVE-2016-8399,

CVE-2016-8632,

CVE-2016-9777