|
OpenSSL SSL/TLS Handshake Denial of Service Vulnerabilities
|
|
Secunia Advisory:
|
SA11139
|
|
|
Release Date:
|
2004-03-17
|
|
Popularity:
|
30,663 views
|
|
|
Critical:
|
Moderately critical
|
|
Impact:
|
DoS
|
|
Where:
|
From remote
|
|
Solution Status:
|
Vendor Patch
|
|
| Software: | OpenSSL 0.9.x
|
|
|
Secunia CVSS-2 Score:
|
Available in Secunia business solutions 
|
|
|
Subscribe:
|
Instant alerts on relevant vulnerabilities
|
|
| Advisory Content (Page 1 of 3) | [ 1 ] [ 2 ] [ 3 ] | |
|
Description:
Three vulnerabilities have been discovered in OpenSSL, which can be exploited by malicious people to cause a DoS (Denial-of-Service).
1) A NULL-pointer assignment in the "do_change_cipher_spec()" function used during the SSL/TLS handshake can be exploited to cause OpenSSL to crash via a specially crafted SSL/TLS handshake.
This vulnerability affects all versions of OpenSSL 0.9.6c through 0.9.6k and 0.9.7a through 0.9.7c.
2) An unspecified error in a fix added to OpenSSL 0.9.6d some time ago can result in a DoS caused by an infinite loop.
This vulnerability only affects older 0.9.6 versions with backported security patches.
3) An out-of-bounds read error exists in a routine used during the SSL/TLS handshake when using Kerberos ciphersuites. This can be exploited to crash OpenSSL via a specially crafted SSL/TLS handshake.
This vulnerability affects versions 0.9.7a, 0.9.7b, and 0.9.7c.
Change Page:
[ 1 ] [ 2 ] [ 3 ]
|
|
|
Track this Secunia Advisory
|
Customers of the Secunia Vulnerability Intelligence solutions will automatically receive updates when new information regarding this advisory is released.
Read more about our Vulnerability Intelligence solutions and what they can do for you and your company.
|
|
|
About this Secunia Advisory
|
Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
Secunia collects, validates, and verifies all vulnerability reports issued by security research groups, vendors, and others.
|
