OpenSSL SSL/TLS Handshake Denial of Service Vulnerabilities - Secunia Advisories - Vulnerability Intelligence

Home > Vulnerability Intelligence > Secunia Advisories > OpenSSL SSL/TLS Handshake Denial of Service Vulnerabilities

Secunia Advisories

Advisories

Advisories by Product

Business Solutions Restricted

Partner Solutions Restricted

About

OpenSSL SSL/TLS Handshake Denial of Service Vulnerabilities
Secunia Advisory:	SA11139	Advisory Toolbox: Issue ticket Save in to-do list Mark as handled Exploit information Download as PDF Review actions Add comment
Release Date:	2004-03-17
Popularity:	27,768 views

Critical:	Moderately critical
Impact:	DoS
Where:	From remote
Solution Status:	Vendor Patch

Software:	OpenSSL 0.9.x

Subscribe:	Instant alerts on relevant vulnerabilities

CVE reference:	CVE-2004-0079 CVE-2004-0081 CVE-2004-0112

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. Solution: Update to version 0.9.7d or 0.9.6m. Recompile any OpenSSL applications statically linked to OpenSSL libraries. OpenSSL 0.9.7d: ftp://ftp.openssl.org/source/openssl-0.9.7d.tar.gz ftp://ftp.openssl.org/source/openssl-0.9.7d.tar.gz.asc OpenSSL 0.9.6m: ftp://ftp.openssl.org/source/openssl-0.9.6m.tar.gz ftp://ftp.openssl.org/source/openssl-0.9.6m.tar.gz.asc OpenSSL Engine 0.9.6m: ftp://ftp.openssl.org/source/openssl-engine-0.9.6m.tar.gz ftp://ftp.openssl.org/source/openssl-engine-0.9.6m.tar.gz.asc Provided and/or discovered by: 1) Discovered by vendor using the Codenomicon TLS Test Tool. 2) Discovered by vendor using the Codenomicon TLS Test Tool. 3) Dr. Stephen Henson Original Advisory: http://www.openssl.org/news/secadv_20040317.txt Other References: NISCC: http://www.uniras.gov.uk/vuls/2004/224012/index.htm US-CERT VU#465542: http://www.kb.cert.org/vuls/id/465542 US-CERT VU#484726: http://www.kb.cert.org/vuls/id/484726 US-CERT VU#288574: http://www.kb.cert.org/vuls/id/288574

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.

Latest Advisories

5th Sep, 2008

New advisories:	14
New vulnerabilities:	18
Updated advisories:	22

Less // 254 views

Netgear WN802T Wireless Access Point Two Vulnerabilities

Less // 201 views

Fedora update for xastir

Less // 258 views

XASTIR Insecure Temporary Files

Less // 208 views

Fedora update for samba

Less // 216 views

Fedora update for bitlbee

Less // 593 views

3Com Wireless 8760 Access Point HTTP Request Processing Denial of Service

Moderately // 490 views

CS-Cart "cs_cookies" SQL Injection Vulnerability

Less // 565 views

Drupal Content Construction Kit Script Insertion Vulnerabilities

Less // 570 views

HP OpenView Select Identity Connectors Information Disclosure

Moderately // 454 views

rPath update for libtiff

Solutions | More...

Send Feedback to Secunia
If you have new information regarding this Secunia advisory or a product in our database, please send it to us using either our web form or email us at vuln@secunia.com. Ideas, suggestions, and other feedback are most welcome.