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Secunia Security Advisory 46275

Secunia Security Advisory 46275
Posted Oct 5, 2011
Authored by Secunia | Site secunia.com

Secunia Security Advisory - 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.

tags | advisory, perl
SHA-256 | 1dfa195ce22d52e735ac3fbb43a352a67bf140a400c0f695d2ee2d76fa94bd9c

Secunia Security Advisory 46275

Change Mirror Download
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Integrates with Microsoft WSUS & SCCM and supports Apple Mac OS X.

Get a free trial now and qualify for a special discount:
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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:
* Authentication Level
* Report Reliability
* Secunia PoC
* Secunia Analysis
* Systems Affected
* Approve Distribution
* Remediation Status
* Secunia CVSS Score
* CVSS

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/

----------------------------------------------------------------------

About:
This Advisory was delivered by Secunia as a free service to help
private users keeping their systems up to date against the latest
vulnerabilities.

Subscribe:
http://secunia.com/advisories/secunia_security_advisories/

Definitions: (Criticality, Where etc.)
http://secunia.com/advisories/about_secunia_advisories/


Please Note:
Secunia recommends that you verify all advisories you receive by
clicking the link.
Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
use those supplied by the vendor.

----------------------------------------------------------------------

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