CVE-2005-2531
Severity Score
5.0
*CVSS v2
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
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.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2005-08-10 CVE Reserved
- 2005-08-24 CVE Published
- 2024-07-31 EPSS Updated
- 2024-08-07 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
CAPEC
References (7)
| URL | Tag | Source |
|---|---|---|
| http://openvpn.net/changelog.html | X_refsource_confirm | |
| http://secunia.com/advisories/16463 | Third Party Advisory | |
| http://secunia.com/advisories/17103 | Third Party Advisory | |
| http://www.securityfocus.com/bid/14605 | Vdb Entry |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| http://www.mandriva.com/security/advisories?name=MDKSA-2005:145 | 2008-09-05 |
| URL | Date | SRC |
|---|---|---|
| http://www.debian.org/security/2005/dsa-851 | 2008-09-05 | |
| http://www.novell.com/linux/security/advisories/2005_20_sr.html | 2008-09-05 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Openvpn Search vendor "Openvpn" | Openvpn Search vendor "Openvpn" for product "Openvpn" | 2.0 Search vendor "Openvpn" for product "Openvpn" and version "2.0" | - |
Affected
| ||||||
| Openvpn Search vendor "Openvpn" | Openvpn Search vendor "Openvpn" for product "Openvpn" | 2.0.1_rc1 Search vendor "Openvpn" for product "Openvpn" and version "2.0.1_rc1" | - |
Affected
| ||||||
| Openvpn Search vendor "Openvpn" | Openvpn Search vendor "Openvpn" for product "Openvpn" | 2.0.1_rc2 Search vendor "Openvpn" for product "Openvpn" and version "2.0.1_rc2" | - |
Affected
| ||||||
| Openvpn Search vendor "Openvpn" | Openvpn Search vendor "Openvpn" for product "Openvpn" | 2.0.1_rc3 Search vendor "Openvpn" for product "Openvpn" and version "2.0.1_rc3" | - |
Affected
| ||||||
| Openvpn Search vendor "Openvpn" | Openvpn Search vendor "Openvpn" for product "Openvpn" | 2.0.1_rc4 Search vendor "Openvpn" for product "Openvpn" and version "2.0.1_rc4" | - |
Affected
| ||||||
| Openvpn Search vendor "Openvpn" | Openvpn Search vendor "Openvpn" for product "Openvpn" | 2.0.1_rc5 Search vendor "Openvpn" for product "Openvpn" and version "2.0.1_rc5" | - |
Affected
| ||||||
| Openvpn Search vendor "Openvpn" | Openvpn Search vendor "Openvpn" for product "Openvpn" | 2.0.1_rc6 Search vendor "Openvpn" for product "Openvpn" and version "2.0.1_rc6" | - |
Affected
| ||||||
| Openvpn Search vendor "Openvpn" | Openvpn Search vendor "Openvpn" for product "Openvpn" | 2.0.1_rc7 Search vendor "Openvpn" for product "Openvpn" and version "2.0.1_rc7" | - |
Affected
| ||||||
| Openvpn Search vendor "Openvpn" | Openvpn Search vendor "Openvpn" for product "Openvpn" | 2.0_beta1 Search vendor "Openvpn" for product "Openvpn" and version "2.0_beta1" | - |
Affected
| ||||||
| Openvpn Search vendor "Openvpn" | Openvpn Search vendor "Openvpn" for product "Openvpn" | 2.0_beta2 Search vendor "Openvpn" for product "Openvpn" and version "2.0_beta2" | - |
Affected
| ||||||
| Openvpn Search vendor "Openvpn" | Openvpn Search vendor "Openvpn" for product "Openvpn" | 2.0_beta3 Search vendor "Openvpn" for product "Openvpn" and version "2.0_beta3" | - |
Affected
| ||||||
| Openvpn Search vendor "Openvpn" | Openvpn Search vendor "Openvpn" for product "Openvpn" | 2.0_beta4 Search vendor "Openvpn" for product "Openvpn" and version "2.0_beta4" | - |
Affected
| ||||||
| Openvpn Search vendor "Openvpn" | Openvpn Search vendor "Openvpn" for product "Openvpn" | 2.0_beta5 Search vendor "Openvpn" for product "Openvpn" and version "2.0_beta5" | - |
Affected
| ||||||
| Openvpn Search vendor "Openvpn" | Openvpn Search vendor "Openvpn" for product "Openvpn" | 2.0_beta6 Search vendor "Openvpn" for product "Openvpn" and version "2.0_beta6" | - |
Affected
| ||||||
| Openvpn Search vendor "Openvpn" | Openvpn Search vendor "Openvpn" for product "Openvpn" | 2.0_beta7 Search vendor "Openvpn" for product "Openvpn" and version "2.0_beta7" | - |
Affected
| ||||||
| Openvpn Search vendor "Openvpn" | Openvpn Search vendor "Openvpn" for product "Openvpn" | 2.0_beta8 Search vendor "Openvpn" for product "Openvpn" and version "2.0_beta8" | - |
Affected
| ||||||
| Openvpn Search vendor "Openvpn" | Openvpn Search vendor "Openvpn" for product "Openvpn" | 2.0_beta9 Search vendor "Openvpn" for product "Openvpn" and version "2.0_beta9" | - |
Affected
| ||||||
| Openvpn Search vendor "Openvpn" | Openvpn Search vendor "Openvpn" for product "Openvpn" | 2.0_beta10 Search vendor "Openvpn" for product "Openvpn" and version "2.0_beta10" | - |
Affected
| ||||||
| Openvpn Search vendor "Openvpn" | Openvpn Search vendor "Openvpn" for product "Openvpn" | 2.0_beta11 Search vendor "Openvpn" for product "Openvpn" and version "2.0_beta11" | - |
Affected
| ||||||
| Openvpn Search vendor "Openvpn" | Openvpn Search vendor "Openvpn" for product "Openvpn" | 2.0_beta12 Search vendor "Openvpn" for product "Openvpn" and version "2.0_beta12" | - |
Affected
| ||||||
| Openvpn Search vendor "Openvpn" | Openvpn Search vendor "Openvpn" for product "Openvpn" | 2.0_beta13 Search vendor "Openvpn" for product "Openvpn" and version "2.0_beta13" | - |
Affected
| ||||||
| Openvpn Search vendor "Openvpn" | Openvpn Search vendor "Openvpn" for product "Openvpn" | 2.0_beta15 Search vendor "Openvpn" for product "Openvpn" and version "2.0_beta15" | - |
Affected
| ||||||
| Openvpn Search vendor "Openvpn" | Openvpn Search vendor "Openvpn" for product "Openvpn" | 2.0_beta16 Search vendor "Openvpn" for product "Openvpn" and version "2.0_beta16" | - |
Affected
| ||||||
| Openvpn Search vendor "Openvpn" | Openvpn Search vendor "Openvpn" for product "Openvpn" | 2.0_beta17 Search vendor "Openvpn" for product "Openvpn" and version "2.0_beta17" | - |
Affected
| ||||||
| Openvpn Search vendor "Openvpn" | Openvpn Search vendor "Openvpn" for product "Openvpn" | 2.0_beta18 Search vendor "Openvpn" for product "Openvpn" and version "2.0_beta18" | - |
Affected
| ||||||
| Openvpn Search vendor "Openvpn" | Openvpn Search vendor "Openvpn" for product "Openvpn" | 2.0_beta19 Search vendor "Openvpn" for product "Openvpn" and version "2.0_beta19" | - |
Affected
| ||||||
| Openvpn Search vendor "Openvpn" | Openvpn Search vendor "Openvpn" for product "Openvpn" | 2.0_beta20 Search vendor "Openvpn" for product "Openvpn" and version "2.0_beta20" | - |
Affected
| ||||||
| Openvpn Search vendor "Openvpn" | Openvpn Search vendor "Openvpn" for product "Openvpn" | 2.0_beta28 Search vendor "Openvpn" for product "Openvpn" and version "2.0_beta28" | - |
Affected
| ||||||
| Openvpn Search vendor "Openvpn" | Openvpn Search vendor "Openvpn" for product "Openvpn" | 2.0_rc1 Search vendor "Openvpn" for product "Openvpn" and version "2.0_rc1" | - |
Affected
| ||||||
| Openvpn Search vendor "Openvpn" | Openvpn Search vendor "Openvpn" for product "Openvpn" | 2.0_rc2 Search vendor "Openvpn" for product "Openvpn" and version "2.0_rc2" | - |
Affected
| ||||||
| Openvpn Search vendor "Openvpn" | Openvpn Search vendor "Openvpn" for product "Openvpn" | 2.0_rc3 Search vendor "Openvpn" for product "Openvpn" and version "2.0_rc3" | - |
Affected
| ||||||
| Openvpn Search vendor "Openvpn" | Openvpn Search vendor "Openvpn" for product "Openvpn" | 2.0_rc4 Search vendor "Openvpn" for product "Openvpn" and version "2.0_rc4" | - |
Affected
| ||||||
| Openvpn Search vendor "Openvpn" | Openvpn Search vendor "Openvpn" for product "Openvpn" | 2.0_rc5 Search vendor "Openvpn" for product "Openvpn" and version "2.0_rc5" | - |
Affected
| ||||||
| Openvpn Search vendor "Openvpn" | Openvpn Search vendor "Openvpn" for product "Openvpn" | 2.0_rc6 Search vendor "Openvpn" for product "Openvpn" and version "2.0_rc6" | - |
Affected
| ||||||
| Openvpn Search vendor "Openvpn" | Openvpn Search vendor "Openvpn" for product "Openvpn" | 2.0_rc7 Search vendor "Openvpn" for product "Openvpn" and version "2.0_rc7" | - |
Affected
| ||||||
| Openvpn Search vendor "Openvpn" | Openvpn Search vendor "Openvpn" for product "Openvpn" | 2.0_rc8 Search vendor "Openvpn" for product "Openvpn" and version "2.0_rc8" | - |
Affected
| ||||||
| Openvpn Search vendor "Openvpn" | Openvpn Search vendor "Openvpn" for product "Openvpn" | 2.0_rc9 Search vendor "Openvpn" for product "Openvpn" and version "2.0_rc9" | - |
Affected
| ||||||
| Openvpn Search vendor "Openvpn" | Openvpn Search vendor "Openvpn" for product "Openvpn" | 2.0_rc10 Search vendor "Openvpn" for product "Openvpn" and version "2.0_rc10" | - |
Affected
| ||||||
| Openvpn Search vendor "Openvpn" | Openvpn Search vendor "Openvpn" for product "Openvpn" | 2.0_rc11 Search vendor "Openvpn" for product "Openvpn" and version "2.0_rc11" | - |
Affected
| ||||||
| Openvpn Search vendor "Openvpn" | Openvpn Search vendor "Openvpn" for product "Openvpn" | 2.0_rc12 Search vendor "Openvpn" for product "Openvpn" and version "2.0_rc12" | - |
Affected
| ||||||
| Openvpn Search vendor "Openvpn" | Openvpn Search vendor "Openvpn" for product "Openvpn" | 2.0_rc13 Search vendor "Openvpn" for product "Openvpn" and version "2.0_rc13" | - |
Affected
| ||||||
| Openvpn Search vendor "Openvpn" | Openvpn Search vendor "Openvpn" for product "Openvpn" | 2.0_rc14 Search vendor "Openvpn" for product "Openvpn" and version "2.0_rc14" | - |
Affected
| ||||||
| Openvpn Search vendor "Openvpn" | Openvpn Search vendor "Openvpn" for product "Openvpn" | 2.0_rc15 Search vendor "Openvpn" for product "Openvpn" and version "2.0_rc15" | - |
Affected
| ||||||
| Openvpn Search vendor "Openvpn" | Openvpn Search vendor "Openvpn" for product "Openvpn" | 2.0_rc16 Search vendor "Openvpn" for product "Openvpn" and version "2.0_rc16" | - |
Affected
| ||||||
| Openvpn Search vendor "Openvpn" | Openvpn Search vendor "Openvpn" for product "Openvpn" | 2.0_rc17 Search vendor "Openvpn" for product "Openvpn" and version "2.0_rc17" | - |
Affected
| ||||||
| Openvpn Search vendor "Openvpn" | Openvpn Search vendor "Openvpn" for product "Openvpn" | 2.0_rc18 Search vendor "Openvpn" for product "Openvpn" and version "2.0_rc18" | - |
Affected
| ||||||
| Openvpn Search vendor "Openvpn" | Openvpn Search vendor "Openvpn" for product "Openvpn" | 2.0_rc19 Search vendor "Openvpn" for product "Openvpn" and version "2.0_rc19" | - |
Affected
| ||||||
| Openvpn Search vendor "Openvpn" | Openvpn Search vendor "Openvpn" for product "Openvpn" | 2.0_rc20 Search vendor "Openvpn" for product "Openvpn" and version "2.0_rc20" | - |
Affected
| ||||||
| Openvpn Search vendor "Openvpn" | Openvpn Search vendor "Openvpn" for product "Openvpn" | 2.0_rc21 Search vendor "Openvpn" for product "Openvpn" and version "2.0_rc21" | - |
Affected
| ||||||
| Openvpn Search vendor "Openvpn" | Openvpn Search vendor "Openvpn" for product "Openvpn" | 2.0_test1 Search vendor "Openvpn" for product "Openvpn" and version "2.0_test1" | - |
Affected
| ||||||
| Openvpn Search vendor "Openvpn" | Openvpn Search vendor "Openvpn" for product "Openvpn" | 2.0_test2 Search vendor "Openvpn" for product "Openvpn" and version "2.0_test2" | - |
Affected
| ||||||
| Openvpn Search vendor "Openvpn" | Openvpn Search vendor "Openvpn" for product "Openvpn" | 2.0_test3 Search vendor "Openvpn" for product "Openvpn" and version "2.0_test3" | - |
Affected
| ||||||
| Openvpn Search vendor "Openvpn" | Openvpn Search vendor "Openvpn" for product "Openvpn" | 2.0_test5 Search vendor "Openvpn" for product "Openvpn" and version "2.0_test5" | - |
Affected
| ||||||
| Openvpn Search vendor "Openvpn" | Openvpn Search vendor "Openvpn" for product "Openvpn" | 2.0_test6 Search vendor "Openvpn" for product "Openvpn" and version "2.0_test6" | - |
Affected
| ||||||
| Openvpn Search vendor "Openvpn" | Openvpn Search vendor "Openvpn" for product "Openvpn" | 2.0_test7 Search vendor "Openvpn" for product "Openvpn" and version "2.0_test7" | - |
Affected
| ||||||
| Openvpn Search vendor "Openvpn" | Openvpn Search vendor "Openvpn" for product "Openvpn" | 2.0_test8 Search vendor "Openvpn" for product "Openvpn" and version "2.0_test8" | - |
Affected
| ||||||
| Openvpn Search vendor "Openvpn" | Openvpn Search vendor "Openvpn" for product "Openvpn" | 2.0_test9 Search vendor "Openvpn" for product "Openvpn" and version "2.0_test9" | - |
Affected
| ||||||
| Openvpn Search vendor "Openvpn" | Openvpn Search vendor "Openvpn" for product "Openvpn" | 2.0_test10 Search vendor "Openvpn" for product "Openvpn" and version "2.0_test10" | - |
Affected
| ||||||
| Openvpn Search vendor "Openvpn" | Openvpn Search vendor "Openvpn" for product "Openvpn" | 2.0_test11 Search vendor "Openvpn" for product "Openvpn" and version "2.0_test11" | - |
Affected
| ||||||
| Openvpn Search vendor "Openvpn" | Openvpn Search vendor "Openvpn" for product "Openvpn" | 2.0_test12 Search vendor "Openvpn" for product "Openvpn" and version "2.0_test12" | - |
Affected
| ||||||
| Openvpn Search vendor "Openvpn" | Openvpn Search vendor "Openvpn" for product "Openvpn" | 2.0_test14 Search vendor "Openvpn" for product "Openvpn" and version "2.0_test14" | - |
Affected
| ||||||
| Openvpn Search vendor "Openvpn" | Openvpn Search vendor "Openvpn" for product "Openvpn" | 2.0_test15 Search vendor "Openvpn" for product "Openvpn" and version "2.0_test15" | - |
Affected
| ||||||
| Openvpn Search vendor "Openvpn" | Openvpn Search vendor "Openvpn" for product "Openvpn" | 2.0_test16 Search vendor "Openvpn" for product "Openvpn" and version "2.0_test16" | - |
Affected
| ||||||
| Openvpn Search vendor "Openvpn" | Openvpn Search vendor "Openvpn" for product "Openvpn" | 2.0_test17 Search vendor "Openvpn" for product "Openvpn" and version "2.0_test17" | - |
Affected
| ||||||
| Openvpn Search vendor "Openvpn" | Openvpn Search vendor "Openvpn" for product "Openvpn" | 2.0_test18 Search vendor "Openvpn" for product "Openvpn" and version "2.0_test18" | - |
Affected
| ||||||
| Openvpn Search vendor "Openvpn" | Openvpn Search vendor "Openvpn" for product "Openvpn" | 2.0_test19 Search vendor "Openvpn" for product "Openvpn" and version "2.0_test19" | - |
Affected
| ||||||
| Openvpn Search vendor "Openvpn" | Openvpn Search vendor "Openvpn" for product "Openvpn" | 2.0_test20 Search vendor "Openvpn" for product "Openvpn" and version "2.0_test20" | - |
Affected
| ||||||
| Openvpn Search vendor "Openvpn" | Openvpn Search vendor "Openvpn" for product "Openvpn" | 2.0_test21 Search vendor "Openvpn" for product "Openvpn" and version "2.0_test21" | - |
Affected
| ||||||
| Openvpn Search vendor "Openvpn" | Openvpn Search vendor "Openvpn" for product "Openvpn" | 2.0_test22 Search vendor "Openvpn" for product "Openvpn" and version "2.0_test22" | - |
Affected
| ||||||
| Openvpn Search vendor "Openvpn" | Openvpn Search vendor "Openvpn" for product "Openvpn" | 2.0_test23 Search vendor "Openvpn" for product "Openvpn" and version "2.0_test23" | - |
Affected
| ||||||
| Openvpn Search vendor "Openvpn" | Openvpn Search vendor "Openvpn" for product "Openvpn" | 2.0_test24 Search vendor "Openvpn" for product "Openvpn" and version "2.0_test24" | - |
Affected
| ||||||
| Openvpn Search vendor "Openvpn" | Openvpn Search vendor "Openvpn" for product "Openvpn" | 2.0_test26 Search vendor "Openvpn" for product "Openvpn" and version "2.0_test26" | - |
Affected
| ||||||
| Openvpn Search vendor "Openvpn" | Openvpn Search vendor "Openvpn" for product "Openvpn" | 2.0_test27 Search vendor "Openvpn" for product "Openvpn" and version "2.0_test27" | - |
Affected
| ||||||
| Openvpn Search vendor "Openvpn" | Openvpn Search vendor "Openvpn" for product "Openvpn" | 2.0_test29 Search vendor "Openvpn" for product "Openvpn" and version "2.0_test29" | - |
Affected
| ||||||