Denial of Service Vulnerability in strongSwan's ASN.1 Parser
CVE-2017-9023

7.5HIGH

Key Information:

Vendor

Strongswan

Status
Strongswan
Vendor
CVE Published:
8 June 2017

What is CVE-2017-9023?

The ASN.1 parser within strongSwan versions before 5.5.3 has a vulnerability that improperly manages CHOICE types when the x509 plugin is activated. This flaw can be exploited remotely, potentially leading to a denial of service condition characterized by an infinite loop when a specially crafted certificate is processed. This situation highlights a critical area of concern for users depending on strongSwan for secure communications, necessitating prompt updates to safeguard against such attacks.

References

http://www.securityfocus.com/bid/98756
vdb-entryx_refsource_BID
https://www.strongswan.org/blog/2017/05/30/strongswan-vul...
x_refsource_CONFIRM
http://www.debian.org/security/2017/dsa-3866
vendor-advisoryx_refsource_DEBIAN

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.