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

SecurityTracker
Archives


 


Category:   Application (VPN)  >   OpenSSL Vendors:   OpenSSL.org
(IBM Issues Fix for AIX) OpenSSL ClientHello Parsing Flaw Lets Remote Users Deny Service
SecurityTracker Alert ID:  1026280
SecurityTracker URL:  http://securitytracker.com/id/1026280
CVE Reference:   CVE-2011-0014   (Links to External Site)
Updated:  Nov 5 2011
Original Entry Date:  Nov 5 2011
Impact:   Denial of service via network, Disclosure of system information
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 0.9.8h through 0.9.8q, 1.0.0 through 1.0.0c
Description:   A vulnerability was reported in OpenSSL. A remote user can cause denial of service conditions. An application may be able to obtain potentially sensitive information.

A remote user can send a specially crafted ClientHello handshake message to cause the target service to crash.

An application using OpenSSL may be able to obtain potentially sensitive information, such as an OCSP nonce extension, from memory.

Applications that act as a server and call SSL_CTX_set_tlsext_status_cb on the server's SSL_CTX (e.g., Apache httpd >= 2.3.3) are affected.

The vulnerability resides in 'ssl/t1_lib.c'.

Neel Mehta (Google) reported this vulnerability.

Impact:   A remote user can cause denial of service conditions.

An application may be able to obtain potentially sensitive information.

Solution:   IBM has issued a fix for AIX.

The IBM advisory is available at:

http://aix.software.ibm.com/aix/efixes/security/openssl_advisory2.asc

Vendor URL:  www.openssl.org/news/secadv_20110208.txt (Links to External Site)
Cause:   Access control error
Underlying OS:  UNIX (AIX)
Underlying OS Comments:  5.3, 6.1, 7.1

Message History:   This archive entry is a follow-up to the message listed below.
Feb 9 2011 OpenSSL ClientHello Parsing Flaw Lets Remote Users Deny Service



 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 2020, SecurityGlobal.net LLC