National Cyber-Alert System
Vulnerability Summary for CVE-2003-0147
Original release date:03/31/2003
Last revised:09/10/2008
Source:
US-CERT/NIST
Overview
OpenSSL does not use RSA blinding by default, which allows local and remote attackers to obtain the server's private key by determining factors using timing differences on (1) the number of extra reductions during Montgomery reduction, and (2) the use of different integer multiplication algorithms ("Karatsuba" and normal).
Impact
CVSS Severity (version 2.0):
Impact Subscore:
2.9
Exploitability Subscore:
10.0
CVSS Version 2 Metrics:
Access Vector: Network exploitable
Access Complexity: Low
Authentication: Not required to exploit
Impact Type:Allows unauthorized disclosure of information
- Official Statement from Red Hat (03/14/2007)
-
Red Hat Enterprise Linux 5 is not vulnerable to this issue as it contains a backported patch.
References to Advisories, Solutions, and Tools
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US-CERT Vulnerability Note: VU#997481
Name: VU#997481
Type: Advisory
External Source: REDHAT
Name: RHSA-2003:102
External Source: REDHAT
Name: RHSA-2003:101
External Source: CONFIRM
Name: http://www.openssl.org/news/secadv_20030317.txt
External Source: MANDRAKE
Name: MDKSA-2003:035
External Source: DEBIAN
Name: DSA-288
External Source: BUGTRAQ
Name: 20030317 [ADVISORY] Timing Attack on OpenSSL
Type: Advisory
External Source: BUGTRAQ
Name: 20030313 Vulnerability in OpenSSL
Type: Advisory
External Source: MISC
Name: http://crypto.stanford.edu/~dabo/papers/ssl-timing.pdf
External Source: VULNWATCH
Name: 20030313 OpenSSL Private Key Disclosure
Type: Advisory
External Source: SGI
Name: 20030501-01-I
External Source: IMMUNIX
Name: IMNX-2003-7+-001-01
External Source: BUGTRAQ
Name: 20030325 Fwd: APPLE-SA-2003-03-24 Samba, OpenSSL
External Source: OPENPKG
Name: OpenPKG-SA-2003.019
External Source: GENTOO
Name: GLSA-200303-23
External Source: GENTOO
Name: GLSA-200303-24
External Source: GENTOO
Name: GLSA-200303-15
External Source: BUGTRAQ
Name: 20030320 [OpenPKG-SA-2003.026] OpenPKG Security Advisory (openssl)
External Source: CONECTIVA
Name: CLA-2003:625
External Source: CALDERA
Name: CSSA-2003-014.0
US Government Resource: oval:org.mitre.oval:def:466
Name: oval:org.mitre.oval:def:466
Type: Tool Signature
