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TITLE:
Perl Crypt-DSA Module Insecure Random Number Generator Security Issue

SECUNIA ADVISORY ID:
SA46275

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/46275/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=46275

RELEASE DATE:
2011-10-05

DISCUSS ADVISORY:
http://secunia.com/advisories/46275/#comments

AVAILABLE ON SITE AND IN CUSTOMER AREA:
 * Last Update
 * Popularity
 * Comments
 * Criticality Level
 * Impact
 * Where
 * Solution Status
 * Operating System / Software
 * CVE Reference(s)

http://secunia.com/advisories/46275/

ONLY AVAILABLE IN CUSTOMER AREA:
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https://ca.secunia.com/?page=viewadvisory&vuln_id=46275

ONLY AVAILABLE WITH SECUNIA CSI AND SECUNIA PSI:
 * AUTOMATED SCANNING

http://secunia.com/vulnerability_scanning/personal/
http://secunia.com/vulnerability_scanning/corporate/wsus_sccm_3rd_third_party_patching/

DESCRIPTION:
A security issue has been reported in the Crypt-DSA module for Perl,
which can be exploited by malicious people to bypass certain security
restrictions.

The security issue is caused due to the module using a
cryptographically insecure method to generate random numbers when
"/dev/random" is not available, which can lead to cryptographically
weak keys.

Successful exploitation requires that "/dev/random" is not available
(e.g. running on a Windows system).

The security issue is reported in version 1.17. Other versions may
also be affected.

SOLUTION:
Do not use on systems without "/dev/random".

PROVIDED AND/OR DISCOVERED BY:
Harlan Lieberman-Berg

ORIGINAL ADVISORY:
https://rt.cpan.org/Public/Bug/Display.html?id=71421

OTHER REFERENCES:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

DEEP LINKS:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXTENDED DESCRIPTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXTENDED SOLUTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXPLOIT:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

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About:
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