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CVE-2017-7521

Publication date 21 June 2017

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

5.9 · Medium

Score breakdown

OpenVPN versions before 2.4.3 and before 2.3.17 are vulnerable to remote denial-of-service due to memory exhaustion caused by memory leaks and double-free issue in extract_x509_extension().

Read the notes from the security team

Status

Package Ubuntu Release Status
openvpn 17.10 artful
Fixed 2.4.0-5ubuntu2
17.04 zesty
Fixed 2.4.0-4ubuntu1.3
16.10 yakkety
Fixed 2.3.11-1ubuntu2.1
16.04 LTS xenial
Fixed 2.3.10-1ubuntu2.1
14.04 LTS trusty
Fixed 2.3.2-7ubuntu3.2

Notes

leosilva

as debian wheezy, precise-esm is not affected, code not present.

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
openvpn

Severity score breakdown

Parameter Value
Base score 5.9 · Medium
Attack vector Network
Attack complexity High
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H