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IBM SECURITY ADVISORY
First Issued: Fri Jun 6 05:44:06 CDT 2014
The most recent version of this document is available here:
http://aix.software.ibm.com/aix/efixes/security/openssl_advisory8.asc https://aix.software.ibm.com/aix/efixes/security/openssl_advisory8.asc ftp://aix.software.ibm.com/aix/efixes/security/openssl_advisory8.asc =============================================================================== VULNERABILITY SUMMARY
VULNERABILITY: Race condition in the ssl3_read_bytes function in s3_pkt.c in OpenSSL.
PLATFORMS: AIX 5.3, 6.1 and 7.1 VIOS 2.X
SOLUTION: Apply the fix as described below.
THREAT: See below
CVE Numbers: CVE-2010-5298
Reboot required? NO Workarounds? NO Protected by FPM? NO Protected by SED? NO =============================================================================== DETAILED INFORMATION
CVE-2010-5298 Race condition in the ssl3_read_bytes function in s3_pkt.c in OpenSSL through 1.0.1g, when SSL_MODE_RELEASE_BUFFERS is enabled,allows remote attackers to inject data across sessions or cause a denial of service (use-after-free and parsing error) via an SSL connection in a multithreaded environment.
CVE-2010-5298 CVSS Base Score:4 CVSS Temporal Score:see http://xforce.iss.net/xforce/xfdb/92632 CVSS Environmental Score*:Undefined CVSS Vector: (AV:N/AC:L/Au:N/C:C/I:N/A:N)
III. PLATFORM VULNERABILITY ASSESSMENT
The following fileset levels are vulnerable: AIX 7.1, 6.1, 5.3: all OpenSSL versions from 220.127.116.110 to 18.104.22.1682 . VIOS 2.X: all OpenSSL versions from 22.214.171.1240 to 126.96.36.1992 . AIX OpenSSL v0.9.8.xxxx and 12.9.8.xxxx are not vulnerable to this security vulnerability. Note: To find out whether the affected filesets are installed on your systems, refer to the lslpp command found in AIX user's guide.
A fix is available, and it can be downloaded from: https://www14.software.ibm.com/webapp/iwm/web/preLogin.do?source=aixbp To extract the fixes from the tar file: zcat openssl-188.8.131.523.tar.Z | tar xvf - IMPORTANT: If possible, it is recommended that a mksysb backup of the system be created. Verify it is both bootable and readable before proceeding. To preview the fix installation: installp -apYd . openssl To install the fix package: installp -aXYd . openssl
VI. CONTACT INFORMATION
If you would like to receive AIX Security Advisories via email, please visit: http://www.ibm.com/systems/support and click on the "My notifications" link. To view previously issued advisories, please visit: http://www14.software.ibm.com/webapp/set2/subscriptions/onvdq Comments regarding the content of this announcement can be directed to: email@example.com To obtain the PGP public key that can be used to communicate securely with the AIX Security Team you can either: A. Send an email with "get key" in the subject line to: firstname.lastname@example.org B. Download the key from our web page: http://www.ibm.com/systems/resources/systems_p_os_aix_security_pgpkey.txt C. Download the key from a PGP Public Key Server. The key ID is: 0x28BFAA12 Please contact your local IBM AIX support center for any assistance. eServer is a trademark of International Business Machines Corporation. IBM, AIX and pSeries are registered trademarks of International Business Machines Corporation. All other trademarks are property of their respective holders.
Complete CVSS Guide: http://www.first.org/cvss/cvss-guide.html On-line Calculator V2: http://nvd.nist.gov/cvss.cfm?calculator&adv&version=2 X-Force Vulnerability Database: http://xforce.iss.net/xforce/xfdb/92632 CVE-2010-5298 : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2010-5298 *The CVSS Environment Score is customer environment specific and will ultimately impact the Overall CVSS Score. Customers can evaluate the impact of this vulnerability in their environments by accessing the links in the Reference section of this Flash. Note: According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES "AS IS" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY.
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