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Category:   Application (Security)  >   OpenSSL Vendors:   OpenSSL.org
OpenSSL FIPS Object Module Self-Test Error Causes the System to Generate More Predictable Pseudo Random Data
SecurityTracker Alert ID:  1019029
SecurityTracker URL:  http://securitytracker.com/id/1019029
CVE Reference:   CVE-2007-5502   (Links to External Site)
Date:  Nov 30 2007
Impact:   Modification of system information
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): FIPS Object Module v1.1.1 only
Description:   A vulnerability was reported in OpenSSL in the FIPS Object Module. The PRNG is not properly seeded.

Auto-seeding does not occur due to an error in the FIPS self-test. As a result, the system generates pseudo random data that is more predictable than intended.

Geoff Lowe of Secure Computing Corporation reported this vulnerability.

Impact:   The system generates pseudo random data that is more predictable than intended.
Solution:   The vendor plans to issue a fixed version of the FIPS Object Module (1.2), currently undergoing FIPS validation. The fix will be available at:

http://openssl.org/source/openssl-fips-1.1.2.tar.gz

Two different interim patches are available:

http://www.openssl.org/news/patch-CVE-2007-5502-1.txt
http://www.openssl.org/news/patch-CVE-2007-5502-2.txt

The OpenSSL advisory is available at:

http://openssl.org/news/secadv_20071129.txt

Vendor URL:  openssl.org/news/secadv_20071129.txt (Links to External Site)
Cause:   Randomization error
Underlying OS:  Linux (Any), UNIX (Any), Windows (Any)

Message History:   None.


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