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

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Remediation

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Tracking

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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

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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 : Deferred

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

Modified: 2025-04-11T00:51:21.963

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