RHSA-2017:0269 - Security Advisory

Topic

An update for java-1.7.0-openjdk is now available for Red Hat Enterprise Linux
5, Red Hat Enterprise Linux 6, and Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of
Critical. A Common Vulnerability Scoring System (CVSS) base score, which gives a
detailed severity rating, is available for each vulnerability from the CVE
link(s) in the References section.

Description

The java-1.7.0-openjdk packages provide the OpenJDK 7 Java Runtime Environment
and the OpenJDK 7 Java Software Development Kit.

Security Fix(es):

• It was discovered that the RMI registry and DCG implementations in the RMI

component of OpenJDK performed deserialization of untrusted inputs. A remote
attacker could possibly use this flaw to execute arbitrary code with the
privileges of RMI registry or a Java RMI application. (CVE-2017-3241)

This issue was addressed by introducing whitelists of classes that can be
deserialized by RMI registry or DCG. These whitelists can be customized using
the newly introduced sun.rmi.registry.registryFilter and
sun.rmi.transport.dgcFilter security properties.

• Multiple flaws were discovered in the Libraries and Hotspot components in

OpenJDK. An untrusted Java application or applet could use these flaws to
completely bypass Java sandbox restrictions. (CVE-2017-3272, CVE-2017-3289)

• A covert timing channel flaw was found in the DSA implementation in the

Libraries component of OpenJDK. A remote attacker could possibly use this flaw
to extract certain information about the used key via a timing side channel.
(CVE-2016-5548)

• It was discovered that the Libraries component of OpenJDK accepted ECSDA

signatures using non-canonical DER encoding. This could cause a Java application
to accept signature in an incorrect format not accepted by other cryptographic
tools. (CVE-2016-5546)

• It was discovered that the 2D component of OpenJDK performed parsing of iTXt

and zTXt PNG image chunks even when configured to ignore metadata. An attacker
able to make a Java application parse a specially crafted PNG image could cause
the application to consume an excessive amount of memory. (CVE-2017-3253)

• It was discovered that the Libraries component of OpenJDK did not validate the

length of the object identifier read from the DER input before allocating memory
to store the OID. An attacker able to make a Java application decode a specially
crafted DER input could cause the application to consume an excessive amount of
memory. (CVE-2016-5547)

• It was discovered that the JAAS component of OpenJDK did not use the correct

way to extract user DN from the result of the user search LDAP query. A
specially crafted user LDAP entry could cause the application to use an
incorrect DN. (CVE-2017-3252)

• It was discovered that the Networking component of OpenJDK failed to properly

parse user info from the URL. A remote attacker could cause a Java application
to incorrectly parse an attacker supplied URL and interpret it differently from
other applications processing the same URL. (CVE-2016-5552)

• Multiple flaws were found in the Networking components in OpenJDK. An

untrusted Java application or applet could use these flaws to bypass certain
Java sandbox restrictions. (CVE-2017-3261, CVE-2017-3231)

• A flaw was found in the way the DES/3DES cipher was used as part of the

TLS/SSL protocol. A man-in-the-middle attacker could use this flaw to recover
some plaintext data by capturing large amounts of encrypted traffic between
TLS/SSL server and client if the communication used a DES/3DES based
ciphersuite. (CVE-2016-2183)

This update mitigates the CVE-2016-2183 issue by adding 3DES cipher suites to
the list of legacy algorithms (defined using the jdk.tls.legacyAlgorithms
security property) so they are only used if connecting TLS/SSL client and server
do not share any other non-legacy cipher suite.

Solution

For details on how to apply this update, which includes the changes described in
this advisory, refer to:

https://access.redhat.com/articles/11258

All running instances of OpenJDK Java must be restarted for this update to take
effect.

Affected Products

• Red Hat Enterprise Linux Server 7 x86_64
• Red Hat Enterprise Linux Server 6 x86_64
• Red Hat Enterprise Linux Server 6 i386
• Red Hat Enterprise Linux Server 5 x86_64
• Red Hat Enterprise Linux Server 5 i386
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 7.7 x86_64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 7.6 x86_64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 7.5 x86_64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 7.4 x86_64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 7.3 x86_64
• Red Hat Enterprise Linux Server - AUS 7.7 x86_64
• Red Hat Enterprise Linux Server - AUS 7.6 x86_64
• Red Hat Enterprise Linux Server - AUS 7.4 x86_64
• Red Hat Enterprise Linux Server - AUS 7.3 x86_64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support 7 x86_64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support 6 x86_64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support 6 i386
• Red Hat Enterprise Linux Workstation 7 x86_64
• Red Hat Enterprise Linux Workstation 6 x86_64
• Red Hat Enterprise Linux Workstation 6 i386
• Red Hat Enterprise Linux Workstation 5 x86_64
• Red Hat Enterprise Linux Workstation 5 i386
• Red Hat Enterprise Linux Desktop 7 x86_64
• Red Hat Enterprise Linux Desktop 6 x86_64
• Red Hat Enterprise Linux Desktop 6 i386
• Red Hat Enterprise Linux Desktop 5 x86_64
• Red Hat Enterprise Linux Desktop 5 i386
• Red Hat Enterprise Linux for IBM z Systems 7 s390x
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 7.7 s390x
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 7.6 s390x
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 7.5 s390x
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 7.4 s390x
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 7.3 s390x
• Red Hat Enterprise Linux for Power, big endian 7 ppc64
• Red Hat Enterprise Linux for Power, big endian - Extended Update Support 7.7 ppc64
• Red Hat Enterprise Linux for Power, big endian - Extended Update Support 7.6 ppc64
• Red Hat Enterprise Linux for Power, big endian - Extended Update Support 7.5 ppc64
• Red Hat Enterprise Linux for Power, big endian - Extended Update Support 7.4 ppc64
• Red Hat Enterprise Linux for Power, big endian - Extended Update Support 7.3 ppc64
• Red Hat Enterprise Linux for Scientific Computing 7 x86_64
• Red Hat Enterprise Linux for Power, little endian 7 ppc64le
• Red Hat Enterprise Linux for Scientific Computing 6 x86_64
• Red Hat Enterprise Linux for Power, little endian - Extended Update Support 7.7 ppc64le
• Red Hat Enterprise Linux for Power, little endian - Extended Update Support 7.6 ppc64le
• Red Hat Enterprise Linux for Power, little endian - Extended Update Support 7.5 ppc64le
• Red Hat Enterprise Linux for Power, little endian - Extended Update Support 7.4 ppc64le
• Red Hat Enterprise Linux for Power, little endian - Extended Update Support 7.3 ppc64le
• Red Hat Enterprise Linux Server - TUS 7.7 x86_64
• Red Hat Enterprise Linux Server - TUS 7.6 x86_64
• Red Hat Enterprise Linux Server - TUS 7.3 x86_64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support (for IBM z Systems) 7 s390x
• Red Hat Enterprise Linux EUS Compute Node 7.7 x86_64
• Red Hat Enterprise Linux EUS Compute Node 7.6 x86_64
• Red Hat Enterprise Linux EUS Compute Node 7.5 x86_64
• Red Hat Enterprise Linux EUS Compute Node 7.4 x86_64
• Red Hat Enterprise Linux EUS Compute Node 7.3 x86_64
• Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 7.7 ppc64le
• Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 7.6 ppc64le
• Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 7.4 ppc64le
• Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 7.3 ppc64le
• Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 7.7 x86_64
• Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 7.6 x86_64
• Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 7.4 x86_64
• Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 7.3 x86_64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support for IBM Power, big endian 7 ppc64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support for IBM Power, little endian 7 ppc64le
• Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension 6 x86_64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension 6 i386

Fixes

• BZ - 1369383 - CVE-2016-2183 SSL/TLS: Birthday attack against 64-bit block ciphers (SWEET32)
• BZ - 1413554 - CVE-2017-3272 OpenJDK: insufficient protected field access checks in atomic field updaters (Libraries, 8165344)
• BZ - 1413562 - CVE-2017-3289 OpenJDK: insecure class construction (Hotspot, 8167104)
• BZ - 1413583 - CVE-2017-3253 OpenJDK: imageio PNGImageReader failed to honor ignoreMetadata for iTXt and zTXt chunks (2D, 8166988)
• BZ - 1413653 - CVE-2017-3261 OpenJDK: integer overflow in SocketOutputStream boundary check (Networking, 8164147)
• BZ - 1413717 - CVE-2017-3231 OpenJDK: URLClassLoader insufficient access control checks (Networking, 8151934)
• BZ - 1413764 - CVE-2016-5547 OpenJDK: missing ObjectIdentifier length check (Libraries, 8168705)
• BZ - 1413882 - CVE-2016-5552 OpenJDK: incorrect URL parsing in URLStreamHandler (Networking, 8167223)
• BZ - 1413906 - CVE-2017-3252 OpenJDK: LdapLoginModule incorrect userDN extraction (JAAS, 8161743)
• BZ - 1413911 - CVE-2016-5546 OpenJDK: incorrect ECDSA signature extraction from the DER input (Libraries, 8168714)
• BZ - 1413920 - CVE-2016-5548 OpenJDK: DSA implementation timing attack (Libraries, 8168728)
• BZ - 1413955 - CVE-2017-3241 OpenJDK: untrusted input deserialization in RMI registry and DCG (RMI, 8156802)

CVEs

• CVE-2017-3252
• CVE-2017-3231
• CVE-2017-3261
• CVE-2016-5548
• CVE-2017-3289
• CVE-2017-3253
• CVE-2017-3272
• CVE-2017-3241
• CVE-2016-5552
• CVE-2016-5546
• CVE-2016-5547

References

• https://access.redhat.com/security/updates/classification/#critical