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Vulnerability Details : CVE-2005-2534

Race condition in OpenVPN before 2.0.1, when --duplicate-cn is not enabled, allows remote attackers to cause a denial of service (server crash) via simultaneous TCP connections from multiple clients that use the same client certificate.
Publish Date : 2005-08-24 Last Update Date : 2008-09-05
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- CVSS Scores & Vulnerability Types

CVSS Score
2.6
Confidentiality Impact None (There is no impact to the confidentiality of the system.)
Integrity Impact None (There is no impact to the integrity of the system)
Availability Impact Partial (There is reduced performance or interruptions in resource availability.)
Access Complexity High (Specialized access conditions exist. It is hard to exploit and several special conditions must be satisfied to exploit)
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s) Denial Of Service
CWE ID CWE id is not defined for this vulnerability

- Products Affected By CVE-2005-2534

# Product Type Vendor Product Version Update Edition Language
1 Application Openvpn Openvpn 2.0 Rc4 * * * Version Details Vulnerabilities
2 Application Openvpn Openvpn 2.0 Beta16 * * * Version Details Vulnerabilities
3 Application Openvpn Openvpn 2.0 Test1 * * * Version Details Vulnerabilities
4 Application Openvpn Openvpn 2.0 Rc15 * * * Version Details Vulnerabilities
5 Application Openvpn Openvpn 2.0 Test18 * * * Version Details Vulnerabilities
6 Application Openvpn Openvpn 2.0 Rc12 * * * Version Details Vulnerabilities
7 Application Openvpn Openvpn 2.0 Test21 * * * Version Details Vulnerabilities
8 Application Openvpn Openvpn 2.0 Rc2 * * * Version Details Vulnerabilities
9 Application Openvpn Openvpn 2.0 Beta13 * * * Version Details Vulnerabilities
10 Application Openvpn Openvpn 2.0 Test6 * * * Version Details Vulnerabilities
11 Application Openvpn Openvpn 2.0 Beta2 * * * Version Details Vulnerabilities
12 Application Openvpn Openvpn 2.0 Test12 * * * Version Details Vulnerabilities
13 Application Openvpn Openvpn 2.0 Beta15 * * * Version Details Vulnerabilities
14 Application Openvpn Openvpn 2.0 Rc5 * * * Version Details Vulnerabilities
15 Application Openvpn Openvpn 2.0 Beta18 * * * Version Details Vulnerabilities
16 Application Openvpn Openvpn 2.0 Test17 * * * Version Details Vulnerabilities
17 Application Openvpn Openvpn 2.0 Rc16 * * * Version Details Vulnerabilities
18 Application Openvpn Openvpn 2.0 Test24 * * * Version Details Vulnerabilities
19 Application Openvpn Openvpn 2.0 Rc14 * * * Version Details Vulnerabilities
20 Application Openvpn Openvpn 2.0 Test22 * * * Version Details Vulnerabilities
21 Application Openvpn Openvpn 2.0 Rc21 * * * Version Details Vulnerabilities
22 Application Openvpn Openvpn 2.0 Beta8 * * * Version Details Vulnerabilities
23 Application Openvpn Openvpn 2.0 Test7 * * * Version Details Vulnerabilities
24 Application Openvpn Openvpn 2.0 Beta20 * * * Version Details Vulnerabilities
25 Application Openvpn Openvpn 2.0 Test14 * * * Version Details Vulnerabilities
26 Application Openvpn Openvpn 2.0 Beta17 * * * Version Details Vulnerabilities
27 Application Openvpn Openvpn 2.0 Rc6 * * * Version Details Vulnerabilities
28 Application Openvpn Openvpn 2.0 Beta5 * * * Version Details Vulnerabilities
29 Application Openvpn Openvpn 2.0 Test19 * * * Version Details Vulnerabilities
30 Application Openvpn Openvpn 2.0 Rc17 * * * Version Details Vulnerabilities
31 Application Openvpn Openvpn 2.0 Test27 * * * Version Details Vulnerabilities
32 Application Openvpn Openvpn 2.0 Rc9 * * * Version Details Vulnerabilities
33 Application Openvpn Openvpn 2.0 Beta9 * * * Version Details Vulnerabilities
34 Application Openvpn Openvpn 2.0 * * * Version Details Vulnerabilities
35 Application Openvpn Openvpn 2.0 Rc20 * * * Version Details Vulnerabilities
36 Application Openvpn Openvpn 2.0 Test23 * * * Version Details Vulnerabilities
37 Application Openvpn Openvpn 2.0 Beta10 * * * Version Details Vulnerabilities
38 Application Openvpn Openvpn 2.0 Test15 * * * Version Details Vulnerabilities
39 Application Openvpn Openvpn 2.0 Beta19 * * * Version Details Vulnerabilities
40 Application Openvpn Openvpn 2.0 Rc7 * * * Version Details Vulnerabilities
41 Application Openvpn Openvpn 2.0 Beta7 * * * Version Details Vulnerabilities
42 Application Openvpn Openvpn 2.0 Test26 * * * Version Details Vulnerabilities
43 Application Openvpn Openvpn 2.0 Rc18 * * * Version Details Vulnerabilities
44 Application Openvpn Openvpn 2.0 Test9 * * * Version Details Vulnerabilities
45 Application Openvpn Openvpn 2.0 Rc1 * * * Version Details Vulnerabilities
46 Application Openvpn Openvpn 2.0 Rc3 * * * Version Details Vulnerabilities
47 Application Openvpn Openvpn 2.0 Beta28 * * * Version Details Vulnerabilities
48 Application Openvpn Openvpn 2.0 Test10 * * * Version Details Vulnerabilities
49 Application Openvpn Openvpn 2.0 Test3 * * * Version Details Vulnerabilities
50 Application Openvpn Openvpn 2.0 Beta4 * * * Version Details Vulnerabilities
51 Application Openvpn Openvpn 2.0 Test2 * * * Version Details Vulnerabilities
52 Application Openvpn Openvpn 2.0 Beta11 * * * Version Details Vulnerabilities
53 Application Openvpn Openvpn 2.0 Rc11 * * * Version Details Vulnerabilities
54 Application Openvpn Openvpn 2.0 Test29 * * * Version Details Vulnerabilities
55 Application Openvpn Openvpn 2.0 Rc19 * * * Version Details Vulnerabilities
56 Application Openvpn Openvpn 2.0 Rc10 * * * Version Details Vulnerabilities
57 Application Openvpn Openvpn 2.0 Rc8 * * * Version Details Vulnerabilities
58 Application Openvpn Openvpn 2.0 Beta3 * * * Version Details Vulnerabilities
59 Application Openvpn Openvpn 2.0 Test16 * * * Version Details Vulnerabilities
60 Application Openvpn Openvpn 2.0 Test5 * * * Version Details Vulnerabilities
61 Application Openvpn Openvpn 2.0 Beta6 * * * Version Details Vulnerabilities
62 Application Openvpn Openvpn 2.0 Test20 * * * Version Details Vulnerabilities
63 Application Openvpn Openvpn 2.0 Rc13 * * * Version Details Vulnerabilities
64 Application Openvpn Openvpn 2.0 Beta12 * * * Version Details Vulnerabilities
65 Application Openvpn Openvpn 2.0 Test8 * * * Version Details Vulnerabilities
66 Application Openvpn Openvpn 2.0 Test11 * * * Version Details Vulnerabilities
67 Application Openvpn Openvpn 2.0 Beta1 * * * Version Details Vulnerabilities
68 Application Openvpn Openvpn 2.0.1 Rc1 * * * Version Details Vulnerabilities
69 Application Openvpn Openvpn 2.0.1 Rc2 * * * Version Details Vulnerabilities
70 Application Openvpn Openvpn 2.0.1 Rc5 * * * Version Details Vulnerabilities
71 Application Openvpn Openvpn 2.0.1 Rc3 * * * Version Details Vulnerabilities
72 Application Openvpn Openvpn 2.0.1 Rc6 * * * Version Details Vulnerabilities
73 Application Openvpn Openvpn 2.0.1 Rc7 * * * Version Details Vulnerabilities
74 Application Openvpn Openvpn 2.0.1 Rc4 * * * Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Openvpn Openvpn 74

- References For CVE-2005-2534

http://secunia.com/advisories/17103
SECUNIA 17103
http://secunia.com/advisories/16463
SECUNIA 16463
http://openvpn.net/changelog.html CONFIRM
http://www.debian.org/security/2005/dsa-851
DEBIAN DSA-851
http://www.mandriva.com/security/advisories?name=MDKSA-2005:145
MANDRIVA MDKSA-2005:145
http://www.securityfocus.com/bid/14610
BID 14610 OpenVPN Same Client Certificate Denial Of Service Vulnerability Release Date:2009-07-12

- Metasploit Modules Related To CVE-2005-2534

There are not any metasploit modules related to this CVE entry (Please visit www.metasploit.com for more information)


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