{"id":"CVE-2013-4115","url":"https://www.cyber-defence.io/tools/cve/CVE-2013-4115","generatedAt":"2026-11-05T07:25:01.056Z","title":"Buffer overflow in the idnsALookup function in dns_internal.cc in Squid 3.2 through 3.2.11 and 3.3 through 3.3.6 allows remote attackers to cause a denial of service (memory corruption and server termination) via a long name in a DNS lookup request.","description":"Buffer overflow in the idnsALookup function in dns_internal.cc in Squid 3.2 through 3.2.11 and 3.3 through 3.3.6 allows remote attackers to cause a denial of service (memory corruption and server termination) via a long name in a DNS lookup request.","published":"2013-08-09T22:55:04.000Z","lastModified":"2026-06-16T23:56:39.000Z","status":"Modified","sourceIdentifier":"secalert@redhat.com","cvss":{"version":"2.0","score":7.5,"severity":"HIGH","vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P"},"cwe":["CWE-119"],"affected":["opensuse/opensuse","squid-cache/squid"],"epss":{"score":0.43895,"percentile":0.98753,"date":"2026-11-04","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"urgent","text":"EPSS puts the probability of exploitation in the next 30 days at 43.9%, higher than 99% of all known CVEs. Patch or mitigate before the next change window."},"changes":[],"references":[{"url":"http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00010.html","source":"secalert@redhat.com"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00040.html","source":"secalert@redhat.com"},{"url":"http://lists.opensuse.org/opensuse-updates/2013-09/msg00024.html","tags":["Vendor Advisory"],"source":"secalert@redhat.com"},{"url":"http://lists.opensuse.org/opensuse-updates/2013-09/msg00025.html","tags":["Vendor Advisory"],"source":"secalert@redhat.com"},{"url":"http://lists.opensuse.org/opensuse-updates/2013-09/msg00030.html","tags":["Vendor Advisory"],"source":"secalert@redhat.com"},{"url":"http://lists.opensuse.org/opensuse-updates/2013-09/msg00032.html","tags":["Vendor Advisory"],"source":"secalert@redhat.com"},{"url":"http://lists.opensuse.org/opensuse-updates/2013-09/msg00033.html","tags":["Vendor Advisory"],"source":"secalert@redhat.com"},{"url":"http://secunia.com/advisories/54076","tags":["Vendor Advisory"],"source":"secalert@redhat.com"},{"url":"http://secunia.com/advisories/54834","tags":["Vendor Advisory"],"source":"secalert@redhat.com"},{"url":"http://secunia.com/advisories/54839","tags":["Vendor Advisory"],"source":"secalert@redhat.com"},{"url":"http://www.openwall.com/lists/oss-security/2013/07/11/8","source":"secalert@redhat.com"},{"url":"http://www.securityfocus.com/bid/61111","source":"secalert@redhat.com"},{"url":"http://www.squid-cache.org/Advisories/SQUID-2013_2.txt","tags":["Vendor Advisory"],"source":"secalert@redhat.com"},{"url":"http://www.squid-cache.org/Versions/v3/3.0/changesets/squid-3.0-9200.patch","tags":["Patch"],"source":"secalert@redhat.com"},{"url":"http://www.squid-cache.org/Versions/v3/3.1/changesets/squid-3.1-10487.patch","tags":["Patch"],"source":"secalert@redhat.com"},{"url":"http://www.squid-cache.org/Versions/v3/3.2/changesets/squid-3.2-11823.patch","tags":["Patch"],"source":"secalert@redhat.com"},{"url":"http://www.squid-cache.org/Versions/v3/3.3/changesets/squid-3.3-12587.patch","tags":["Patch"],"source":"secalert@redhat.com"},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/85564","source":"secalert@redhat.com"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00010.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00040.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.opensuse.org/opensuse-updates/2013-09/msg00024.html","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.opensuse.org/opensuse-updates/2013-09/msg00025.html","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.opensuse.org/opensuse-updates/2013-09/msg00030.html","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.opensuse.org/opensuse-updates/2013-09/msg00032.html","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.opensuse.org/opensuse-updates/2013-09/msg00033.html","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://secunia.com/advisories/54076","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://secunia.com/advisories/54834","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://secunia.com/advisories/54839","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.openwall.com/lists/oss-security/2013/07/11/8","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/bid/61111","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.squid-cache.org/Advisories/SQUID-2013_2.txt","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.squid-cache.org/Versions/v3/3.0/changesets/squid-3.0-9200.patch","tags":["Patch"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.squid-cache.org/Versions/v3/3.1/changesets/squid-3.1-10487.patch","tags":["Patch"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.squid-cache.org/Versions/v3/3.2/changesets/squid-3.2-11823.patch","tags":["Patch"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.squid-cache.org/Versions/v3/3.3/changesets/squid-3.3-12587.patch","tags":["Patch"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/85564","source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2013-4115","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."}