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freebsdFreeBSD5AD3E437-E527-4514-B9ED-280B2CA1A8C9
HistoryAug 03, 2005 - 12:00 a.m.

openvpn -- multiple TCP clients connecting with the same certificate at the same time can crash the server

2005-08-0300:00:00
vuxml.freebsd.org
14

CVSS2

2.6

Attack Vector

NETWORK

Attack Complexity

HIGH

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

EPSS

0.021

Percentile

89.4%

James Yonan reports:

If two or more client machines try to connect to the server
at the same time via TCP, using the same client certificate,
and when --duplicate-cn is not enabled on the server, a race
condition can crash the server with β€œAssertion failed at
mtcp.c:411”

OSVersionArchitecturePackageVersionFilename
FreeBSDanynoarchopenvpn<Β 2.0.1UNKNOWN

CVSS2

2.6

Attack Vector

NETWORK

Attack Complexity

HIGH

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

EPSS

0.021

Percentile

89.4%

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