Flashes (Alerts)
Abstract
The Transport Layer Security protocol does not properly consider timing side-channel attacks, which allows remote attackers to conduct distinguishing attacks and plain-text recovery attacks via statistical analysis of timing data for crafted packets, aka the "Lucky Thirteen" issue.
Content
VULNERABILITY DETAILS:
CVE-2013-0169
DESCRIPTION:
A weakness in the handling of cipher-block chaining (CBC) ciphersuites in Secure Sockets Layer (SSL), Transport Layer Security (TLS) and Datagram Transport Layer Security (DTLS) could lead to plaintext recovery of sensitive information by exploiting timing differences arising during message authentication codes (MAC) processing. The CVSS score is based on IBM X-Force rankings, which sets the access complexity for this vulnerability as Medium.
The attack does not require local network access nor does it require authentication, but some degree of specialized knowledge and techniques are required. An exploit may impact the confidentiality of information but the integrity of data, or the availability of the system would not be compromised.
CVEID:
CVE-2013-0169
CVSS Base Score: 4.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/81902
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:M/Au:N/C:P/I:N/A:N)
AFFECTED PRODUCTS AND VERSIONS:
PRODUCT VERSIONS AFFECTED
| PRODUCT version | GSKit Version |
| Tivoli Directory Server V6.0 Tivoli Directory Server V6.1 Tivoli Directory Server V6.2 | GSKit 7.0 |
| Tivoli Directory Server V6.3 | GSKit 8.0 |
REMEDIATION:
The vulnerability is fixed in the following versions of the IBM GSKit libraries.
Tivoli Directory Server fixes for entitled customers on Fix Central provide access to the latest GSKit build available as of their publication.
For access to GSKit 8.0.14.27:
For access to GSKit 7.0.4.45:
Workaround(s):
None
Mitigation(s):
None
REFERENCES:
RELATED INFORMATION:
IBM Secure Engineering Web Portal
ACKNOWLEDGEMENT
None
*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.
Was this topic helpful?
Document Information
Modified date:
26 September 2022
UID
swg21638270