Scientific Linux Security Update : java-1.7.0-openjdk on SL5.x, SL6.x, SL7.x i386/x86_64

This script is Copyright (C) 2017 Tenable Network Security, Inc.


Synopsis :

The remote Scientific Linux host is missing one or more security
updates.

Description :

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.

See also :

http://www.nessus.org/u?edb104a3

Solution :

Update the affected packages.

Risk factor :

Medium / CVSS Base Score : 6.8
(CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P)

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