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{"bugzilla": {"description": "strongswan: denial of service flaw in 5.0.3/5.0.4", "id": "991215", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=991215"}, "csaw": false, "cvss": {"cvss_base_score": "4.3", "cvss_scoring_vector": "AV:N/AC:M/Au:N/C:N/I:N/A:P", "status": "draft"}, "details": ["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."], "name": "CVE-2013-5018", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Not affected", "package_name": "openswan", "product_name": "Red Hat Enterprise Linux 5"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "openswan", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "openswan", "product_name": "Red Hat Enterprise Linux 7"}], "public_date": "2013-08-01T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2013-5018\nhttps://nvd.nist.gov/vuln/detail/CVE-2013-5018\nhttp://strongswan.org/blog/2013/08/01/strongswan-denial-of-service-vulnerability-(cve-2013-5018).html"], "statement": "Not vulnerable. This issue did not affect the versions of openswan as shipped with Red Hat Enterprise Linux 5 or 6 as they did not include the problematic newline checks when validating ASN.1 length.", "threat_severity": "Moderate"}