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.
Published 2011-02-10 18:00:58
Updated 2017-08-17 01:33:37
Source Red Hat, Inc.
View at NVD,   CVE.org

Threat overview for CVE-2011-0539

Top countries where our scanners detected CVE-2011-0539
Top open port discovered on systems with this issue 22
IPs affected by CVE-2011-0539 9,132
Threat actors abusing to this issue? Yes
Find out if you* are affected by CVE-2011-0539!
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Exploit prediction scoring system (EPSS) score for CVE-2011-0539

0.70%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 78 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2011-0539

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
5.0
MEDIUM AV:N/AC:L/Au:N/C:P/I:N/A:N
10.0
2.9
NIST

CWE ids for CVE-2011-0539

  • Assigned by: nvd@nist.gov (Primary)

References for CVE-2011-0539

Products affected by CVE-2011-0539

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