Sun Fire T2000 incorrect DSA signature verification

sunfire-incorrect-signature-verification (28201)

Low Risk

Description:

Sun Fire T2000 servers running Sun Solaris incorrectly verify DSA signatures in certain cases. This would result in weaker than expected security and could allow a local or remote attacker to cause applications to trust malicious data.

*CVSS:

Base Score:	2.3
Access Vector:	Remote
Access Complexity:	Low
Authentication:	Not Required
Confidentiality Impact:	None
Integrity Impact:	Partial
Availability Impact:	None
Temporal Score:	1.7
Exploitability:	Unproven
Remediation Level:	Official-Fix
Report Confidence:	Confirmed

Consequences:

Other

Remedy:

Refer to Sun Alert ID: 102543 for patch or upgrade information. See References.

References:

• Sun Alert ID: 102543: Security Vulnerability on Sun Fire T2000 With Solaris 10 (3/05 HW2).
• BID-19291: Sun Fire T2000 Incorrect DSA Signature Verification Vulnerability
• CVE-2006-3968: The crypto provider in Sun Solaris 10 3/05 HW2 without patch 121236-01, when running on Sun Fire T2000 platforms, incorrectly verifies a DSA signature, which might prevent applications from detecting that the data has been modified.
• SA21279: Sun Fire T2000 Incorrect DSA Signature Verification
• SECTRACK ID: 1016625: Sun Fire T2000 Does Not Properly Detect Invalid DSA Signatures
• VUPEN/ADV-2006-3103: Sun Fire T2000 Crypto Provider DSA Signature Validation Security Bypass Vulnerability

Platforms Affected:

• Sun Fire T2000 Server

Reported:

Aug 01, 2006

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The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.

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