Debian DSA-2356-1 : openjdk-6 - several vulnerabilities (BEAST)
Critical Nessus Plugin ID 56987
SynopsisThe remote Debian host is missing a security-related update.
DescriptionSeveral vulnerabilities have been discovered in OpenJDK, an
implementation of the Java platform :
The TLS implementation does not guard properly against
certain chosen-plaintext attacks when block ciphers are
used in CBC mode.
The CORBA implementation contains a deserialization
vulnerability in the IIOP implementation, allowing
untrusted Java code (such as applets) to elevate its
The Java scripting engine lacks necessary security
manager checks, allowing untrusted Java code (such as
applets) to elevate its privileges.
The skip() method in java.io.InputStream uses a shared
buffer, allowing untrusted Java code (such as applets)
to access data that is skipped by other code.
The java.awt.AWTKeyStroke class contains a flaw which
allows untrusted Java code (such as applets) to elevate
The Java2D C code contains an integer overflow which
results in a heap-based buffer overflow, potentially
allowing untrusted Java code (such as applets) to
elevate its privileges.
Malicous Java code can use up an excessive amount of UDP
ports, leading to a denial of service.
JAX-WS enables stack traces for certain server responses
by default, potentially leaking sensitive information.
JAR files in pack200 format are not properly checked for
errors, potentially leading to arbitrary code execution
when unpacking crafted pack200 files.
The RMI Registry server lacks access restrictions on
certain methods, allowing a remote client to execute
The RMI Registry server fails to properly restrict
privileges of untrusted Java code, allowing RMI clients
to elevate their privileges on the RMI Registry server.
The com.sun.net.ssl.HttpsURLConnection class does not
perform proper security manager checks in the
setSSLSocketFactory() method, allowing untrusted Java
code to bypass security policy restrictions.
SolutionUpgrade the openjdk-6 packages.
For the stable distribution (squeeze), this problem has been fixed in