medium
5
CWE
NVD-CWE-Other
Advisory Published
Updated

CVE-2005-2532

First published: Wed Aug 24 2005(Updated: )

OpenVPN before 2.0.1 does not properly flush the OpenSSL error queue when a packet can not be decrypted by the server, which allows remote authenticated attackers to cause a denial of service (client disconnection) via a large number of packets that can not be decrypted.

Credit: cve@mitre.org

Affected SoftwareAffected VersionHow to fix
OpenVPN Monitor=2.0_beta13
OpenVPN Monitor=2.0_rc9
OpenVPN Monitor=2.0_test19
OpenVPN Monitor=2.0
OpenVPN Monitor=2.0_test17
OpenVPN Monitor=2.0_test10
OpenVPN Monitor=2.0_test23
OpenVPN Monitor=2.0_beta20
OpenVPN Monitor=2.0.1_rc3
OpenVPN Monitor=2.0_beta19
OpenVPN Monitor=2.0_rc19
OpenVPN Monitor=2.0_beta1
OpenVPN Monitor=2.0_rc21
OpenVPN Monitor=2.0_beta9
OpenVPN Monitor=2.0.1_rc4
OpenVPN Monitor=2.0.1_rc2
OpenVPN Monitor=2.0_test26
OpenVPN Monitor=2.0_rc2
OpenVPN Monitor=2.0_test1
OpenVPN Monitor=2.0_beta16
OpenVPN Monitor=2.0_beta10
OpenVPN Monitor=2.0_rc20
OpenVPN Monitor=2.0_test14
OpenVPN Monitor=2.0_test6
OpenVPN Monitor=2.0_test12
OpenVPN Monitor=2.0_rc3
OpenVPN Monitor=2.0_beta15
OpenVPN Monitor=2.0_rc12
OpenVPN Monitor=2.0_beta8
OpenVPN Monitor=2.0_test3
OpenVPN Monitor=2.0_beta5
OpenVPN Monitor=2.0_beta18
OpenVPN Monitor=2.0_rc5
OpenVPN Monitor=2.0_rc6
OpenVPN Monitor=2.0_rc11
OpenVPN Monitor=2.0_rc7
OpenVPN Monitor=2.0_rc4
OpenVPN Monitor=2.0_beta2
OpenVPN Monitor=2.0_rc16
OpenVPN Monitor=2.0_test29
OpenVPN Monitor=2.0_beta3
OpenVPN Monitor=2.0_test9
OpenVPN Monitor=2.0_test27
OpenVPN Monitor=2.0_test21
OpenVPN Monitor=2.0_beta28
OpenVPN Monitor=2.0_rc17
OpenVPN Monitor=2.0_test5
OpenVPN Monitor=2.0_test20
OpenVPN Monitor=2.0_rc10
OpenVPN Monitor=2.0_rc8
OpenVPN Monitor=2.0.1_rc1
OpenVPN Monitor=2.0_test22
OpenVPN Monitor=2.0_test11
OpenVPN Monitor=2.0_test24
OpenVPN Monitor=2.0.1_rc6
OpenVPN Monitor=2.0_test7
OpenVPN Monitor=2.0.1_rc7
OpenVPN Monitor=2.0_rc14
OpenVPN Monitor=2.0_rc18
OpenVPN Monitor=2.0_beta17
OpenVPN Monitor=2.0_test15
OpenVPN Monitor=2.0_test8
OpenVPN Monitor=2.0_rc1
OpenVPN Monitor=2.0.1_rc5
OpenVPN Monitor=2.0_beta4
OpenVPN Monitor=2.0_test2
OpenVPN Monitor=2.0_beta6
OpenVPN Monitor=2.0_rc15
OpenVPN Monitor=2.0_beta7
OpenVPN Monitor=2.0_beta11
OpenVPN Monitor=2.0_test18
OpenVPN Monitor=2.0_test16
OpenVPN Monitor=2.0_rc13
OpenVPN Monitor=2.0_beta12

Remedy

http://www.mandriva.com/security/advisories?name=MDKSA-2005:145

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2005-2532?

    CVE-2005-2532 is classified as a denial of service vulnerability that can lead to unexpected client disconnections.

  • How do I fix CVE-2005-2532?

    To mitigate CVE-2005-2532, upgrade to OpenVPN version 2.0.1 or later to ensure proper error queue flushing.

  • What types of attacks can exploit CVE-2005-2532?

    CVE-2005-2532 can be exploited by remote authenticated attackers sending a series of non-decryptable packets.

  • Is my version of OpenVPN vulnerable to CVE-2005-2532?

    If you are using OpenVPN versions prior to 2.0.1, you are vulnerable to CVE-2005-2532.

  • What impact does CVE-2005-2532 have on my OpenVPN service?

    CVE-2005-2532 can cause service disruptions by forcibly disconnecting clients, impacting overall availability.

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