Security Bulletin
Summary
The SSH server is configured to support Cipher Block Chaining (CBC) encryption. This may allow an attacker to recover the plaintext message from the ciphertext.
Vulnerability Details
CVEID: CVE-2008-5161
DESCRIPTION:
The SSH server is configured to support Cipher Block Chaining (CBC) encryption. This may allow an attacker to recover the plaintext message from the ciphertext. This could allow a remote attacker to obtain sensitive information, caused by the improper handling of errors within an SSH session which is encrypted with a block cipher algorithm in CBC mode. A remote attacker with read and write access to network data could exploit this vulnerability to display plaintext bits from a block of ciphertext and obtain sensitive information.
CVSS Base Score: 4.3
CVSS Temporal Score: See http://xforce.iss.net/xforce/xfdb/46620 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:M/Au:N/C:P/I:N/A:N)
Affected Products and Versions
All versions of microcode for the IBM Virtualization Engine TS7700 (3957-V06, 3957-V07, 3957-VEA, 3957-VEB) prior to release R2.1 are affected. In addition, microcode versions of releases R2.1, R3.0, R3.1 and R3.2 prior to and including the following are also affected:
|
Release | Version |
| R3.2 | 8.32.0.84 |
| R3.1 | 8.31.1.4 |
| R3.0 | 8.30.2.23 |
| R2.1 | 8.21.0.178 |
Remediation/Fixes
Contact IBM Service at 1-800-IBM-SERV to arrange an upgrade to the latest microcode level followed by the installation of vtd_exec.210.
|
Release | Fix |
| R3.2 | 8.32.0.84 + vtd_exec.210 |
| R3.1 | 8.31.0.92 + vtd_exec.210 |
| R3.0 | 8.30.2.23 + vtd_exec.210 |
| R2.1 | 8.21.0.178 + vtd_exec.210 |
| Older Releases | 8.21.0.178 + vtd_exec.210 |
Workarounds and Mitigations
Although IBM recommends that you upgrade to the fixes identified above, you can mitigate, but not eliminate the risk of these vulnerabilities by restricting physical and network access to the TS7700 to authorized users and IBM Service Personnel only.
Get Notified about Future Security Bulletins
References
Change History
30 January 2015: Original Version Published
*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 Security Bulletin.
Disclaimer
Review the IBM security bulletin disclaimer and definitions regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment.
Was this topic helpful?
Document Information
Modified date:
17 June 2018
UID
ssg1S1005043