National Cyber-Alert System
Vulnerability Summary for CVE-2005-1797
Original release date:05/26/2005
Last revised:09/05/2008
Source:
US-CERT/NIST
Overview
The design of Advanced Encryption Standard (AES), aka Rijndael, allows remote attackers to recover AES keys via timing attacks on S-box lookups, which are difficult to perform in constant time in AES implementations.
Impact
CVSS Severity (version 2.0):
Impact Subscore:
6.4
Exploitability Subscore:
4.9
CVSS Version 2 Metrics:
Access Vector: Network exploitable
Access Complexity: High
Authentication: Not required to exploit
Impact Type:Allows unauthorized disclosure of information; Allows unauthorized modification; Allows disruption of service
- Official Statement from Red Hat (07/08/2008)
-
The OpenSSL Team do not consider this issue to be a practical threat. Conducting an attack such as this has shown to be impractical outside of a controlled lab environment. If the OpenSSL Team decide to produce an update to correct this issue, we will consider including it in a future security update.
References to Advisories, Solutions, and Tools
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External Source: BID
Name: 13785
Type: Advisory
External Source: MISC
Name: http://cr.yp.to/antiforgery/cachetiming-20050414.pdf
Type: Advisory
