Upstream information
Description
Error handling in the SSH protocol in (1) SSH Tectia Client and Server and Connector 4.0 through 4.4.11, 5.0 through 5.2.4, and 5.3 through 5.3.8; Client and Server and ConnectSecure 6.0 through 6.0.4; Server for Linux on IBM System z 6.0.4; Server for IBM z/OS 5.5.1 and earlier, 6.0.0, and 6.0.1; and Client 4.0-J through 4.3.3-J and 4.0-K through 4.3.10-K; and (2) OpenSSH 4.7p1 and possibly other versions, when using a block cipher algorithm in Cipher Block Chaining (CBC) mode, makes it easier for remote attackers to recover certain plaintext data from an arbitrary block of ciphertext in an SSH session via unknown vectors.SUSE information
Overall state of this security issue: Resolved
This issue is currently not rated by SUSE as it is not affecting the SUSE Enterprise products.
| National Vulnerability Database | |
|---|---|
| Base Score | 2.6 |
| Vector | AV:N/AC:H/Au:N/C:P/I:N/A:N |
| Access Vector | Network |
| Access Complexity | High |
| Authentication | None |
| Confidentiality Impact | Partial |
| Integrity Impact | None |
| Availability Impact | None |
Note from the SUSE Security Team
Exploiting this problem will surely be noticeable by the administrator and also leak only a very small amount of data. It also requires faking network traffic to the target host too, which is likely impossible for remote attackers. The openSSH team also considers this attack unlikely and unworkable and has published this note regarding it. A configuration setting for our extremely paranoid customers is also listed on above by setting the Ciphers list explicitly so that the problematic cipher is not selected by default. SUSE Bugzilla entries: 1074631 [RESOLVED / NORESPONSE], 446442 [RESOLVED / UPSTREAM] No SUSE Security Announcements cross referenced.SUSE Timeline for this CVE
CVE page created: Tue Jul 9 18:33:05 2013CVE page last modified: Sat Jun 17 11:15:05 2023