CVEvulnerability

CVE-2005-2534

2.6 LOW Published 2005-08-24 Modified 2026-06-16 Official page ↗
Status
Modified
Published
2005-08-24
Last modified
2026-06-16
Assigner
[email protected]
CVSS 2.0 ([email protected])
2.6 LOW — AV:N/AC:H/Au:N/C:N/I:N/A:P

Description

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.

Affected configurations

• openvpn openvpn 2.0 • openvpn openvpn 2.0.1 rc1 • openvpn openvpn 2.0.1 rc2 • openvpn openvpn 2.0.1 rc3 • openvpn openvpn 2.0.1 rc4 • openvpn openvpn 2.0.1 rc5 • openvpn openvpn 2.0.1 rc6 • openvpn openvpn 2.0.1 rc7 • openvpn openvpn 2.0 beta1 • openvpn openvpn 2.0 beta2 • openvpn openvpn 2.0 beta3 • openvpn openvpn 2.0 beta4 • openvpn openvpn 2.0 beta5 • openvpn openvpn 2.0 beta6 • openvpn openvpn 2.0 beta7 • openvpn openvpn 2.0 beta8 • openvpn openvpn 2.0 beta9 • openvpn openvpn 2.0 beta10 • openvpn openvpn 2.0 beta11 • openvpn openvpn 2.0 beta12 • openvpn openvpn 2.0 beta13 • openvpn openvpn 2.0 beta15 • openvpn openvpn 2.0 beta16 • openvpn openvpn 2.0 beta17 • openvpn openvpn 2.0 beta18 • openvpn openvpn 2.0 beta19 • openvpn openvpn 2.0 beta20 • openvpn openvpn 2.0 beta28 • openvpn openvpn 2.0 rc1 • openvpn openvpn 2.0 rc2 • openvpn openvpn 2.0 rc3 • openvpn openvpn 2.0 rc4 • openvpn openvpn 2.0 rc5 • openvpn openvpn 2.0 rc6 • openvpn openvpn 2.0 rc7 • openvpn openvpn 2.0 rc8 • openvpn openvpn 2.0 rc9 • openvpn openvpn 2.0 rc10 • openvpn openvpn 2.0 rc11 • openvpn openvpn 2.0 rc12 • openvpn openvpn 2.0 rc13 • openvpn openvpn 2.0 rc14 • openvpn openvpn 2.0 rc15 • openvpn openvpn 2.0 rc16 • openvpn openvpn 2.0 rc17 • openvpn openvpn 2.0 rc18 • openvpn openvpn 2.0 rc19 • openvpn openvpn 2.0 rc20 • openvpn openvpn 2.0 rc21 • openvpn openvpn 2.0 test1 • openvpn openvpn 2.0 test2 • openvpn openvpn 2.0 test3 • openvpn openvpn 2.0 test5 • openvpn openvpn 2.0 test6 • openvpn openvpn 2.0 test7 • openvpn openvpn 2.0 test8 • openvpn openvpn 2.0 test9 • openvpn openvpn 2.0 test10 • openvpn openvpn 2.0 test11 • openvpn openvpn 2.0 test12 … and 14 more

References