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cve[email protected]CVE-2005-2531
HistoryAug 24, 2005 - 4:00 a.m.

CVE-2005-2531

2005-08-2404:00:00
NVD-CWE-Other
web.nvd.nist.gov
40
openvpn
cve-2005-2531
tls authentication
denial of service

6.5 Medium

AI Score

Confidence

Low

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:N/I:N/A:P

0.034 Low

EPSS

Percentile

91.3%

OpenVPN before 2.0.1, when running with “verb 0” and without TLS authentication, does not properly flush the OpenSSL error queue when a client fails certificate authentication to the server and causes the error to be processed by the wrong client, which allows remote attackers to cause a denial of service (client disconnection) via a large number of failed authentication attempts.

6.5 Medium

AI Score

Confidence

Low

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:N/I:N/A:P

0.034 Low

EPSS

Percentile

91.3%