CVE-2017-9023

Publication date 30 May 2017

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

7.5 · High

Score breakdown

The ASN.1 parser in strongSwan before 5.5.3 improperly handles CHOICE types when the x509 plugin is enabled, which allows remote attackers to cause a denial of service (infinite loop) via a crafted certificate.

Status

Package Ubuntu Release Status
strongswan 17.04 zesty
Fixed 5.5.1-1ubuntu3.1
16.10 yakkety
Fixed 5.3.5-1ubuntu4.3
16.04 LTS xenial
Fixed 5.3.5-1ubuntu3.3
14.04 LTS trusty
Fixed 5.1.2-0ubuntu2.6

Severity score breakdown

Parameter Value
Base score 7.5 · High
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

Related Ubuntu Security Notices (USN)

    • USN-3301-1
    • strongSwan vulnerabilities
    • 30 May 2017

Other references