|
OpenSSL Two Denial of Service Vulnerabilities
|
|
Secunia Advisory:
|
SA30405
|
|
|
Release Date:
|
2008-05-28
|
|
Last Update:
|
2008-06-02
|
|
Popularity:
|
8,045 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: Two vulnerabilities have been reported in OpenSSL, which can be exploited by malicious people to cause a DoS (Denial of Service).
1) A double-free error in the handling of server name extension data if "server_name" set to 0x00 can be exploited to crash a server application using OpenSSL by sending a specially crafted TLS 1.0 Client Hello packet.
Successful exploitation requires that OpenSSL is compiled using the TLS server name extensions.
2) A NULL pointer dereference error can be exploited by a malicious server to crash a client application when the "Server Key exchange message" is omitted from a TLS handshake and anonymous Diffie-Hellman key exchange is used.
The vulnerabilities are reported in versions 0.9.8f and 0.9.8g.
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.
|