Date: 25 May 2007
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AA-2007.0030 AUSCERT Advisory
Remote Denial of Service Vulnerability in RSA BSAFE Crypto-C
and Cert-C libraries
25 May 2007
AusCERT Advisory Summary
Product: RSA BSAFE Crypto-C library prior to 6.3.1
RSA BSAFE Cert-C library prior to 2.8
Operating System: Windows
UNIX variants (UNIX, Linux, OSX)
Impact: Denial of Service
CVE Names: CVE-2006.3894
Member content until: Friday, June 22 2007
The RSA BSAFE Crypto-C and Cert-C libraries are vulnerable to a
remote denial of service attack . These libraries are used to
implement cryptographic services in many third party applications,
which may also be affected by this issue.
Remote attackers may be able to cause systems using products that
use the affected libraries to enter a denial of service state.
Products that use these libraries include several Cisco products,
including Cisco IOS, Cisco IOS XR, Cisco PIX, Cisco Firewall
Services Manager and Cisco CallManager .
Users of the RSA BSAFE libraries can upgrade to the latest versions
of the affected libraries (Crypto-C 6.3.1 and Cert-C 2.8). Users
of third party products will need to update those products.
Cisco has released a bulletin containing both fixes and mitigation
strategies for this issue. Please see the references section for
links to the Cisco advisories .
 US-CERT Vulnerability Note VU#754281
 Cisco Security Advisory: Vulnerability in Crypto Library
 Cisco Applied Intelligence Response: Identifying and Mitigating
Exploitation of the Vulnerability in Crypto Library
AusCERT has made every effort to ensure that the information contained
in this document is accurate. However, the decision to use the information
described is the responsibility of each user or organisation. The decision to
follow or act on information or advice contained in this security bulletin is
the responsibility of each user or organisation, and should be considered in
accordance with your organisation's site policies and procedures. AusCERT
takes no responsibility for consequences which may arise from following or
acting on information or advice contained in this security bulletin.
If you believe that your computer system has been compromised or attacked in
any way, we encourage you to let us know by completing the secure National IT
Incident Reporting Form at:
Australian Computer Emergency Response Team
The University of Queensland
Internet Email: email@example.com
Facsimile: (07) 3365 7031
Telephone: (07) 3365 4417 (International: +61 7 3365 4417)
AusCERT personnel answer during Queensland business hours
which are GMT+10:00 (AEST).
On call after hours for member emergencies only.
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