Overview
A vulnerability exists in GnuTLS that may allow a remote attacker to cause a denial of service.
Description
GnuTLS contains a vulnerability in gnults-serv that may result in a denial of service when handling a sequence of specially crafted packets. According to CERT-FI Vulnerability Advisory on GnuTLS: We have found the flaw by doing complete TLS 1.0 handshake followed by a encrypted Client-Hello message to start abbreviated handshake. In this case the the Record Length field of the TLS Record containing the Client Hello contains erroneus value '8' triggering the bug. Note that this might not be the only way to reproduce the bug. |
Impact
A remote, unauthorized attacker may be able to cause a denial of service. |
Solution
Upgrade or Apply Patch |
Vendor Information
CVSS Metrics
| Group | Score | Vector |
|---|---|---|
| Base | ||
| Temporal | ||
| Environmental |
References
Acknowledgements
This issue was reported in GnuTLS Security Advisory SA-2008-01. GnuTLS credits Ossi Herrala and Jukka Taimisto from the CROSS project at Codenomicon Ltd. for reporting this issue.
This document was written by Chris Taschner.
Other Information
| CVE IDs: | CVE-2008-1950 |
| Severity Metric: | 16.54 |
| Date Public: | 2008-05-19 |
| Date First Published: | 2008-05-30 |
| Date Last Updated: | 2008-05-30 13:41 UTC |
| Document Revision: | 16 |