Debian DSA-2356-1 : openjdk-6 - several vulnerabilities (BEAST)

critical Nessus Plugin ID 56987


The remote Debian host is missing a security-related update.


Several vulnerabilities have been discovered in OpenJDK, an implementation of the Java platform :

- CVE-2011-3389 The TLS implementation does not guard properly against certain chosen-plaintext attacks when block ciphers are used in CBC mode.

- CVE-2011-3521 The CORBA implementation contains a deserialization vulnerability in the IIOP implementation, allowing untrusted Java code (such as applets) to elevate its privileges.

- CVE-2011-3544 The Java scripting engine lacks necessary security manager checks, allowing untrusted Java code (such as applets) to elevate its privileges.

- CVE-2011-3547 The skip() method in uses a shared buffer, allowing untrusted Java code (such as applets) to access data that is skipped by other code.

- CVE-2011-3548 The java.awt.AWTKeyStroke class contains a flaw which allows untrusted Java code (such as applets) to elevate its privileges.

- CVE-2011-3551 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.

- CVE-2011-3552 Malicous Java code can use up an excessive amount of UDP ports, leading to a denial of service.

- CVE-2011-3553 JAX-WS enables stack traces for certain server responses by default, potentially leaking sensitive information.

- CVE-2011-3554 JAR files in pack200 format are not properly checked for errors, potentially leading to arbitrary code execution when unpacking crafted pack200 files.

- CVE-2011-3556 The RMI Registry server lacks access restrictions on certain methods, allowing a remote client to execute arbitary code.

- CVE-2011-3557 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.

- CVE-2011-3560 The class does not perform proper security manager checks in the setSSLSocketFactory() method, allowing untrusted Java code to bypass security policy restrictions.


Upgrade the openjdk-6 packages.

For the stable distribution (squeeze), this problem has been fixed in version 6b18-1.8.10-0+squeeze2.

See Also

Plugin Details

Severity: Critical

ID: 56987

File Name: debian_DSA-2356.nasl

Version: 1.27

Type: local

Agent: unix

Published: 12/2/2011

Updated: 3/8/2022

Supported Sensors: Frictionless Assessment Agent, Nessus Agent

Risk Information


Risk Factor: Critical

Score: 9.8


Risk Factor: Critical

Base Score: 10

Temporal Score: 8.7

Vector: AV:N/AC:L/Au:N/C:C/I:C/A:C

Temporal Vector: E:H/RL:OF/RC:C

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:openjdk-6, cpe:/o:debian:debian_linux:6.0

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 12/1/2011

CISA Known Exploited Dates: 3/24/2022

Exploitable With


Core Impact

Metasploit (Java RMI Server Insecure Default Configuration Java Code Execution)

Reference Information

CVE: CVE-2011-3389, CVE-2011-3521, CVE-2011-3544, CVE-2011-3547, CVE-2011-3548, CVE-2011-3551, CVE-2011-3552, CVE-2011-3553, CVE-2011-3554, CVE-2011-3556, CVE-2011-3557, CVE-2011-3560

BID: 49388, 49778, 50211, 50215, 50216, 50218, 50224, 50231, 50234, 50236, 50243, 50246, 50248

DSA: 2356