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Secunia Security Advisory 49220

Secunia Security Advisory 49220
Posted May 18, 2012
Authored by Secunia | Site secunia.com

Secunia Security Advisory - A weakness has been reported in PolarSSL, which can be exploited by malicious people to disclose sensitive information and bypass certain security restrictions.

tags | advisory
SHA-256 | 3d3cf9f1ce53c58fc5149cebc50ea0bfd8d0632a12fc1b3fc0f84398d5f6ee8d

Secunia Security Advisory 49220

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TITLE:
PolarSSL Diffie-Hellman and RSA Weak Key Generation Weakness

SECUNIA ADVISORY ID:
SA49220

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/49220/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=49220

RELEASE DATE:
2012-05-18

DISCUSS ADVISORY:
http://secunia.com/advisories/49220/#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/49220/

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=49220

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 weakness has been reported in PolarSSL, which can be exploited by
malicious people to disclose sensitive information and bypass certain
security restrictions.

The weakness is caused due to weak encryption when generating
Diffie-Hellman values and RSA keys, which can be exploited to brute
force the private value and master secret and disclose the
communication channel via Man-in-the-Middle (MitM) attacks.

The weakness is reported in versions 0.99-pre4 through 1.1.1.

SOLUTION:
Update or upgrade to version 1.1.2.

PROVIDED AND/OR DISCOVERED BY:
The vendor credits Ruslan Yushchenko.

ORIGINAL ADVISORY:
PolarSSL Security Advisory 2012-01:
http://polarssl.org/trac/wiki/SecurityAdvisory201201

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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