{"id":"CVE-2013-2053","url":"https://www.cyber-defence.io/tools/cve/CVE-2013-2053","generatedAt":"2026-10-27T18:48:11.469Z","title":"Buffer overflow in the atodn function in Openswan before 2.6.39, when Opportunistic Encryption is enabled and an RSA key is being used, allows remote attackers to cause a denial of service (pluto IKE daemon crash) and possibly execute arbitrary code via…","description":"Buffer overflow in the atodn function in Openswan before 2.6.39, when Opportunistic Encryption is enabled and an RSA key is being used, allows remote attackers to cause a denial of service (pluto IKE daemon crash) and possibly execute arbitrary code via crafted DNS TXT records.  NOTE: this might be the same vulnerability as CVE-2013-2052 and CVE-2013-2054.","published":"2013-07-09T17:55:01.000Z","lastModified":"2026-06-16T23:52:40.000Z","status":"Modified","sourceIdentifier":"secalert@redhat.com","cvss":{"version":"2.0","score":6.8,"severity":"MEDIUM","vector":"AV:N/AC:M/Au:N/C:P/I:P/A:P"},"cwe":["CWE-119"],"affected":["xelerance/openswan"],"epss":{"score":0.02447,"percentile":0.84241,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (2.45%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"http://lists.opensuse.org/opensuse-security-announce/2013-07/msg00008.html","source":"secalert@redhat.com"},{"url":"http://rhn.redhat.com/errata/RHSA-2013-0827.html","source":"secalert@redhat.com"},{"url":"http://www.debian.org/security/2014/dsa-2893","source":"secalert@redhat.com"},{"url":"http://www.securityfocus.com/bid/59838","source":"secalert@redhat.com"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=960229","source":"secalert@redhat.com"},{"url":"https://lists.libreswan.org/pipermail/swan-announce/2013/000003.html","source":"secalert@redhat.com"},{"url":"https://www.openswan.org/news/13","tags":["Vendor Advisory"],"source":"secalert@redhat.com"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2013-07/msg00008.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://rhn.redhat.com/errata/RHSA-2013-0827.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.debian.org/security/2014/dsa-2893","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/bid/59838","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=960229","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.libreswan.org/pipermail/swan-announce/2013/000003.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.openswan.org/news/13","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2013-2053","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}