RHSA-2015:1921 - Security Advisory

Topic

Updated java-1.7.0-openjdk packages that fix multiple security issues are
now available for Red Hat Enterprise Linux 5.

Red Hat Product Security has rated this update as having Important security
impact. Common Vulnerability Scoring System (CVSS) base scores, which give
detailed severity ratings, are available for each vulnerability from the
CVE links 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.

Multiple flaws were discovered in the CORBA, Libraries, RMI, Serialization,
and 2D components in OpenJDK. An untrusted Java application or applet could
use these flaws to completely bypass Java sandbox restrictions.
(CVE-2015-4835, CVE-2015-4881, CVE-2015-4843, CVE-2015-4883, CVE-2015-4860,
CVE-2015-4805, CVE-2015-4844)

Multiple denial of service flaws were found in the JAXP component in
OpenJDK. A specially crafted XML file could cause a Java application using
JAXP to consume an excessive amount of CPU and memory when parsed.
(CVE-2015-4803, CVE-2015-4893, CVE-2015-4911)

It was discovered that the Security component in OpenJDK failed to properly
check if a certificate satisfied all defined constraints. In certain cases,
this could cause a Java application to accept an X.509 certificate which
does not meet requirements of the defined policy. (CVE-2015-4872)

Multiple flaws were found in the Libraries, 2D, CORBA, JAXP, JGSS, and RMI
components in OpenJDK. An untrusted Java application or applet could use
these flaws to bypass certain Java sandbox restrictions. (CVE-2015-4806,
CVE-2015-4840, CVE-2015-4882, CVE-2015-4842, CVE-2015-4734, CVE-2015-4903)

Red Hat would like to thank Andrea Palazzo of Truel IT for reporting the
CVE-2015-4806 issue.

All users of java-1.7.0-openjdk are advised to upgrade to these updated
packages, which resolve these issues. All running instances of OpenJDK Java
must be restarted for the update to take effect.

Solution

Before applying this update, make sure all previously released errata
relevant to your system have been applied.

For details on how to apply this update, refer to:

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

Affected Products

• Red Hat Enterprise Linux Server 5 x86_64
• Red Hat Enterprise Linux Server 5 i386
• Red Hat Enterprise Linux Workstation 5 x86_64
• Red Hat Enterprise Linux Workstation 5 i386
• Red Hat Enterprise Linux Desktop 5 x86_64
• Red Hat Enterprise Linux Desktop 5 i386
• Red Hat Enterprise Linux Server from RHUI 5 x86_64
• Red Hat Enterprise Linux Server from RHUI 5 i386

Fixes

• BZ - 1233687 - CVE-2015-4806 OpenJDK: HttpURLConnection header restriction bypass (Libraries, 8130193)
• BZ - 1273022 - CVE-2015-4835 OpenJDK: insufficient permission checks in StubGenerator (CORBA, 8076383)
• BZ - 1273027 - CVE-2015-4881 OpenJDK: missing type checks in IIOPInputStream (CORBA, 8076392)
• BZ - 1273053 - CVE-2015-4843 OpenJDK: java.nio Buffers integer overflow issues (Libraries, 8130891)
• BZ - 1273304 - CVE-2015-4883 OpenJDK: incorrect access control context used in DGCClient (RMI, 8076413)
• BZ - 1273308 - CVE-2015-4860 OpenJDK: incorrect access control context used in DGCImpl (RMI, 8080688)
• BZ - 1273311 - CVE-2015-4805 OpenJDK: missing checks for proper initialization in ObjectStreamClass (Serialization, 8103671)
• BZ - 1273318 - CVE-2015-4844 ICU: missing boundary checks in layout engine (OpenJDK 2D, 8132042)
• BZ - 1273338 - CVE-2015-4840 OpenJDK: OOB access in CMS code (2D, 8086092)
• BZ - 1273414 - CVE-2015-4882 OpenJDK: incorrect String object deserialization in IIOPInputStream (CORBA, 8076387)
• BZ - 1273425 - CVE-2015-4842 OpenJDK: leak of user.dir location (JAXP, 8078427)
• BZ - 1273430 - CVE-2015-4734 OpenJDK: kerberos realm name leak (JGSS, 8048030)
• BZ - 1273496 - CVE-2015-4903 OpenJDK: insufficient proxy class checks in RemoteObjectInvocationHandler (RMI, 8076339)
• BZ - 1273637 - CVE-2015-4803 OpenJDK: inefficient use of hash tables and lists during XML parsing (JAXP, 8068842)
• BZ - 1273638 - CVE-2015-4893 OpenJDK: incomplete MaxXMLNameLimit enforcement (JAXP, 8086733)
• BZ - 1273645 - CVE-2015-4911 OpenJDK: incomplete supportDTD enforcement (JAXP, 8130078)
• BZ - 1273734 - CVE-2015-4872 OpenJDK: incomplete constraints enforcement by AlgorithmChecker (Security, 8131291)

CVEs

• CVE-2015-4843
• CVE-2015-4842
• CVE-2015-4840
• CVE-2015-4872
• CVE-2015-4860
• CVE-2015-4844
• CVE-2015-4911
• CVE-2015-4893
• CVE-2015-4883
• CVE-2015-4734
• CVE-2015-4881
• CVE-2015-4882
• CVE-2015-4903
• CVE-2015-4806
• CVE-2015-4805
• CVE-2015-4803
• CVE-2015-4835

References

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