CVE-2013-5018

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Summary

CVECVE-2013-5018
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2013-08-28 23:55:10 UTC
Updated2026-04-29 01:13:23 UTC
DescriptionThe 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.

Risk And Classification

Primary CVSS: v2.0 4.3 from [email protected]

AV:N/AC:M/Au:N/C:N/I:N/A:P

Problem Types: CWE-119 | n/a

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Medium
Authentication
None
Confidentiality
None
Integrity
None
Availability
Partial

AV:N/AC:M/Au:N/C:N/I:N/A:P

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Opensuse Opensuse 11.4 All All All
Operating System Opensuse Opensuse 12.2 All All All
Operating System Opensuse Opensuse 12.3 All All All
Application Strongswan Strongswan 4.1.11 All All All
Application Strongswan Strongswan 5.0.0 All All All
Application Strongswan Strongswan 5.0.1 All All All
Application Strongswan Strongswan 5.0.2 All All All
Application Strongswan Strongswan 5.0.3 All All All
Application Strongswan Strongswan 5.0.4 All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
About Secunia Research | Flexera af854a3a-2127-422b-91ae-364da2661108 secunia.com Vendor Advisory
strongSwan - strongSwan Denial-of-Service Vulnerability (CVE-2013-5018) af854a3a-2127-422b-91ae-364da2661108 strongswan.org Vendor Advisory
openSUSE-SU-2013:1332-1: moderate: update for strongswan af854a3a-2127-422b-91ae-364da2661108 lists.opensuse.org
openSUSE-SU-2013:1333-1: moderate: update for strongswan af854a3a-2127-422b-91ae-364da2661108 lists.opensuse.org
strongSwan 'is_asn1()' Function Denial of Service Vulnerability af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com
[strongSwan] charon crash right after xauth+rsa client connects (strongswan-5.0.4, ubuntu 12.04) af854a3a-2127-422b-91ae-364da2661108 lists.strongswan.org Exploit
openSUSE-SU-2013:1372-1: moderate: update for strongswan af854a3a-2127-422b-91ae-364da2661108 lists.opensuse.org
strongSwan - strongSwan 5.1.0 Released af854a3a-2127-422b-91ae-364da2661108 strongswan.org Vendor Advisory
About Secunia Research | Flexera af854a3a-2127-422b-91ae-364da2661108 secunia.com Vendor Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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