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

The final version of the CSI 6.0 has been released. 
Find out why this is not just another Patch Management solution: http://secunia.com/blog/325/

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

TITLE:
OpenSSL Information Disclosure and Denial of Service Vulnerabilities

SECUNIA ADVISORY ID:
SA52036

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/52036/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=52036

RELEASE DATE:
2013-02-06

DISCUSS ADVISORY:
http://secunia.com/advisories/52036/#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/52036/

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=52036

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:
Multiple vulnerabilities have been reported in OpenSSL, which can be
exploited by malicious people to disclose potentially sensitive
information and cause a DoS (Denial of Service) of the application
using the library.

1) An error when handling message authentication codes (MACs) with a
block cipher algorithm in the CBC (Cipher-Block Chaining) mode can be
exploited to potentially disclose certain plaintext bits from a block
of ciphertext.

2) An error when handling TLS packets using CBC mode can be exploited
to cause a crash.

This vulnerability is reported in version 1.0.1c running on the
AES-NI platform.

3) An error when handling OCSP response verification can be exploited
to render the application unusable.

Vulnerabilities #1 and #3 are reported in versions 1.0.1c, 1.0.0j,
and 0.9.8x and prior.

SOLUTION:
Update to versions 1.0.1d, 1.0.0k, or 0.9.8y.

PROVIDED AND/OR DISCOVERED BY:
1) Nadhem AlFardan and Kenny Paterson, Information Security Group at
Royal Holloway, University of London
2) The vendor independently credits Adam Langley and Wolfgang
Ettlingers
3) Reported by the vendor.

ORIGINAL ADVISORY:
OpenSSL:
http://www.openssl.org/news/secadv_20130205.txt

Nadhem AlFardan and Kenny Paterson:
http://www.isg.rhul.ac.uk/tls/

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.

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