Description
The is_asn1 function in strongSwan 4.1.11 through 5.0.4 does not properly validate the return value of the asn1_length function, which allows remote attackers to cause a denial of service (segmentation fault) via a (1) XAuth username, (2) EAP identity, or (3) PEM encoded file that starts with a 0x04, 0x30, or 0x31 character followed by an ASN.1 length value that triggers an integer overflow.
Published: 2013-08-28
Score: 4.3 Medium
EPSS: 2.9% Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

Sign in to view the affected projects.

Advisories
Source ID Title
EUVD EUVD EUVD-2013-4860 The is_asn1 function in strongSwan 4.1.11 through 5.0.4 does not properly validate the return value of the asn1_length function, which allows remote attackers to cause a denial of service (segmentation fault) via a (1) XAuth username, (2) EAP identity, or (3) PEM encoded file that starts with a 0x04, 0x30, or 0x31 character followed by an ASN.1 length value that triggers an integer overflow.
History

No history.

Subscriptions

Opensuse Opensuse
Strongswan Strongswan
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2024-08-06T16:59:41.283Z

Reserved: 2013-07-30T00:00:00.000Z

Link: CVE-2013-5018

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2013-08-28T23:55:10.650

Modified: 2026-04-29T01:13:23.040

Link: CVE-2013-5018

cve-icon Redhat

Severity : Moderate

Publid Date: 2013-08-01T00:00:00Z

Links: CVE-2013-5018 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses