SecurityTracker.com
    Home    |    View Topics    |    Search    |    Contact Us    |   

SecurityTracker
Archives


 


Category:   Application (Generic)  >   Attachmate Reflection Vendors:   AttachmateWRQ
(Attachmate Issues Fix for Reflection) OpenSSL Bugs Let Remote Users Deny Service, Obtain Information, and Potentially Execute Arbitrary Code
SecurityTracker Alert ID:  1026661
SecurityTracker URL:  http://securitytracker.com/id/1026661
CVE Reference:   CVE-2011-4576   (Links to External Site)
Date:  Feb 10 2012
Impact:   Denial of service via network, Disclosure of user information, Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  

Description:   Several vulnerabilities were reported in OpenSSL. A remote user can cause denial of service conditions. A remote user can obtain sensitive information. A remote user may be able to execute arbitrary code on the target system. Attachmate Reflection is affected.

A remote user can conduct an efficient plaintext recovery attack against the OpenSSL implementation of Datagram Transport Layer Security (DTLS) [CVE-2011-4108, CVE-2012-0390]. Nadhem Alfardan and Kenny Paterson of the Information Security Group at Royal Holloway, University of London (www.isg.rhul.ac.uk) reported this vulnerability.

A remote user can trigger a double-free memory error when a policy check fails [CVE-2011-4109]. Version 0.9.8 systems with the X509_V_FLAG_POLICY_CHECK set are affected. Ben Laurie reported this vulnerability.

The bytes used as block cipher padding in SSL 3.0 records are not cleared. A remote user may be able to conduct a SSL 3.0 handshake to obtain memory contents [CVE-2011-4576]. Adam Langley reported this vulnerability.

Specially crafted RFC 3779 data within a certificate may cause an assertion failure [CVE-2011-4577]. System builds configured with "enable-rfc3779" are affected. Andrew Chi, BBN Technologies, reported this vulnerability.

A remote user can exploit a flaw in handshake restarts for server gated cryptography (SGC) to cause denial of service conditions on the target system [CVE-2011-4619]. Adam Langley reported this vulnerability.

A remote user can send specially crafted GOST parameters to cause the target server to crash [CVE-2012-0027]. OpenSSL GOST ENGINE users are affected. Andrey Kulikov reported this vulnerability.

Impact:   A remote user may be able to execute arbitrary code on the target system.

A remote user can cause the target server to crash.

A remote user can obtain plaintext in certain cases.

Solution:   Attachmate has issued a hotfix for CVE-2011-4576 for Reflection.

The Attachmate advisories are available at:

http://support.attachmate.com/techdocs/1708.html
http://support.attachmate.com/techdocs/2502.html

Cause:   Access control error, Exception handling error, Input validation error, State error
Underlying OS:  OpenVMS, UNIX (Any), Windows (Any)

Message History:   This archive entry is a follow-up to the message listed below.
Jan 5 2012 OpenSSL Bugs Let Remote Users Deny Service, Obtain Information, and Potentially Execute Arbitrary Code



 Source Message Contents



[Original Message Not Available for Viewing]


Go to the Top of This SecurityTracker Archive Page





Home   |    View Topics   |    Search   |    Contact Us

This web site uses cookies for web analytics. Learn More

Copyright 2021, SecurityGlobal.net LLC