Upstream information

CVE-2011-0539 at MITRE

Description

The key_certify function in usr.bin/ssh/key.c in OpenSSH 5.6 and 5.7, when generating legacy certificates using the -t command-line option in ssh-keygen, does not initialize the nonce field, which might allow remote attackers to obtain sensitive stack memory contents or make it easier to conduct hash collision attacks.

SUSE information

Overall state of this security issue: Resolved

This issue is currently rated as having moderate severity.

CVSS v2 Scores
  National Vulnerability Database
Base Score 5
Vector AV:N/AC:L/Au:N/C:P/I:N/A:N
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact Partial
Integrity Impact None
Availability Impact None

Note from the SUSE Security Team

This issue only affects openssh 5.6 and 5.7. Only openSUSE 11.4 shipped this version and has received fixes. Older produxcts or openssh versions are not affected.

SUSE Bugzilla entry: 669477 [CLOSED / FIXED]

No SUSE Security Announcements cross referenced.