CVE-2017-9023

Description

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.

Category

7.5
CVSS
Severity: High
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.80% Top 30%
Vendor Advisory debian.org Vendor Advisory ubuntu.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.securityfocus.com/bid/98756 third party advisory vdb entry
https://www.strongswan.org/blog/2017/05/30/strongswan-vulnerability-%28cve-2017-9023%29.html
http://www.debian.org/security/2017/dsa-3866 third party advisory vendor advisory
http://www.ubuntu.com/usn/USN-3301-1 third party advisory vendor advisory

Frequently Asked Questions

What is the severity of CVE-2017-9023?
CVE-2017-9023 has been scored as a high severity vulnerability.
How to fix CVE-2017-9023?
To fix CVE-2017-9023, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2017-9023 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2017-9023 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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