{"api_version":"1","generated_at":"2026-04-23T09:38:13+00:00","cve":"CVE-2007-0248","urls":{"html":"https://cve.report/CVE-2007-0248","api":"https://cve.report/api/cve/CVE-2007-0248.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2007-0248","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2007-0248"},"summary":{"title":"CVE-2007-0248","description":"The aclMatchExternal function in Squid before 2.6.STABLE7 allows remote attackers to cause a denial of service (crash) by causing an external_acl queue overload, which triggers an infinite loop.","state":"PUBLISHED","assigner":"mitre","published_at":"2007-01-16 18:28:00","updated_at":"2026-04-23 00:35:47"},"problem_types":["NVD-CWE-Other","n/a"],"metrics":[{"version":"2.0","source":"nvd@nist.gov","type":"Primary","score":"5","severity":"","vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","data":{"version":"2.0","vectorString":"AV:N/AC:L/Au:N/C:N/I:N/A:P","baseScore":5,"accessVector":"NETWORK","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"PARTIAL"}}],"references":[{"url":"http://www.vupen.com/english/advisories/2007/0199","name":"http://www.vupen.com/english/advisories/2007/0199","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"Webmail - OVH","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"http://www.novell.com/linux/security/advisories/2007_12_squid.html","name":"http://www.novell.com/linux/security/advisories/2007_12_squid.html","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"Security Announcement","mime":"text/html","httpstatus":"404","archivestatus":"200"},{"url":"http://secunia.com/advisories/23921","name":"http://secunia.com/advisories/23921","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"Ubuntu update for squid - Advisories - Secunia","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"http://www.gentoo.org/security/en/glsa/glsa-200701-22.xml","name":"http://www.gentoo.org/security/en/glsa/glsa-200701-22.xml","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"Gentoo Linux Documentation\n--\n  Squid: Multiple Denial of Service vulnerabilities","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"http://secunia.com/advisories/23946","name":"http://secunia.com/advisories/23946","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"Gentoo update for squid - Advisories - Secunia","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"http://www.squid-cache.org/bugs/show_bug.cgi?id=1848","name":"http://www.squid-cache.org/bugs/show_bug.cgi?id=1848","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"404 Not Found","mime":"text/html","httpstatus":"404","archivestatus":"404"},{"url":"http://www.securityfocus.com/bid/22203","name":"http://www.securityfocus.com/bid/22203","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"Squid Proxy ACL Queue Overload Remote Denial of Service Vulnerability","mime":"text/html","httpstatus":"200","archivestatus":"0"},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/31525","name":"https://exchange.xforce.ibmcloud.com/vulnerabilities/31525","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"IBM X-Force Exchange","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"http://secunia.com/advisories/23805","name":"http://secunia.com/advisories/23805","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"SUSE update for squid - Advisories - Secunia","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"http://secunia.com/advisories/23889","name":"http://secunia.com/advisories/23889","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"Mandriva update for squid - Advisories - Secunia","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"http://www.squid-cache.org/Versions/v2/2.6/squid-2.6.STABLE7-RELEASENOTES.html#s12","name":"http://www.squid-cache.org/Versions/v2/2.6/squid-2.6.STABLE7-RELEASENOTES.html#s12","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"http://www.ubuntu.com/usn/usn-414-1","name":"http://www.ubuntu.com/usn/usn-414-1","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"USN-414-1: Squid vulnerabilities | Ubuntu","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"http://www.mandriva.com/security/advisories?name=MDKSA-2007:026","name":"http://www.mandriva.com/security/advisories?name=MDKSA-2007:026","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"Advisories - Mandriva Linux","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"http://secunia.com/advisories/23767","name":"http://secunia.com/advisories/23767","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch","Vendor Advisory"],"title":"Squid Denial of Service Vulnerabilities - Advisories - Secunia","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://www.cve.org/CVERecord?id=CVE-2007-0248","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2007-0248","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"n/a","product":"n/a","version":"affected n/a","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2007","cve_id":"248","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"squid","cpe5":"squid","cpe6":"2.6.stable6","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[{"cvename":"CVE-2007-0248","organization":"Red Hat","lastmodified":"2007-07-26","contributor":"Mark J Cox","statementText":"Red Hat Enterprise Linux 5 is not vulnerable to this issue as it contains a backported patch. This issue did not affect the versions of Squid as shipped with Red Hat Enterprise Linux 2.1, 3, or 4.","cve_year":"2007","cve_id":"248","crc32":"ad35b0df"}],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"adp":[{"providerMetadata":{"dateUpdated":"2024-08-07T12:12:17.832Z","orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE"},"references":[{"tags":["x_refsource_CONFIRM","x_transferred"],"url":"http://www.squid-cache.org/Versions/v2/2.6/squid-2.6.STABLE7-RELEASENOTES.html#s12"},{"name":"22203","tags":["vdb-entry","x_refsource_BID","x_transferred"],"url":"http://www.securityfocus.com/bid/22203"},{"name":"23921","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred"],"url":"http://secunia.com/advisories/23921"},{"name":"23946","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred"],"url":"http://secunia.com/advisories/23946"},{"name":"ADV-2007-0199","tags":["vdb-entry","x_refsource_VUPEN","x_transferred"],"url":"http://www.vupen.com/english/advisories/2007/0199"},{"name":"GLSA-200701-22","tags":["vendor-advisory","x_refsource_GENTOO","x_transferred"],"url":"http://www.gentoo.org/security/en/glsa/glsa-200701-22.xml"},{"name":"SUSE-SA:2007:012","tags":["vendor-advisory","x_refsource_SUSE","x_transferred"],"url":"http://www.novell.com/linux/security/advisories/2007_12_squid.html"},{"name":"MDKSA-2007:026","tags":["vendor-advisory","x_refsource_MANDRIVA","x_transferred"],"url":"http://www.mandriva.com/security/advisories?name=MDKSA-2007:026"},{"name":"squid-externalacl-dos(31525)","tags":["vdb-entry","x_refsource_XF","x_transferred"],"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/31525"},{"name":"USN-414-1","tags":["vendor-advisory","x_refsource_UBUNTU","x_transferred"],"url":"http://www.ubuntu.com/usn/usn-414-1"},{"name":"23805","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred"],"url":"http://secunia.com/advisories/23805"},{"name":"23767","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred"],"url":"http://secunia.com/advisories/23767"},{"name":"23889","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred"],"url":"http://secunia.com/advisories/23889"},{"tags":["x_refsource_CONFIRM","x_transferred"],"url":"http://www.squid-cache.org/bugs/show_bug.cgi?id=1848"}],"title":"CVE Program Container"}],"cna":{"affected":[{"product":"n/a","vendor":"n/a","versions":[{"status":"affected","version":"n/a"}]}],"datePublic":"2007-01-13T00:00:00.000Z","descriptions":[{"lang":"en","value":"The aclMatchExternal function in Squid before 2.6.STABLE7 allows remote attackers to cause a denial of service (crash) by causing an external_acl queue overload, which triggers an infinite loop."}],"problemTypes":[{"descriptions":[{"description":"n/a","lang":"en","type":"text"}]}],"providerMetadata":{"dateUpdated":"2017-07-28T12:57:01.000Z","orgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","shortName":"mitre"},"references":[{"tags":["x_refsource_CONFIRM"],"url":"http://www.squid-cache.org/Versions/v2/2.6/squid-2.6.STABLE7-RELEASENOTES.html#s12"},{"name":"22203","tags":["vdb-entry","x_refsource_BID"],"url":"http://www.securityfocus.com/bid/22203"},{"name":"23921","tags":["third-party-advisory","x_refsource_SECUNIA"],"url":"http://secunia.com/advisories/23921"},{"name":"23946","tags":["third-party-advisory","x_refsource_SECUNIA"],"url":"http://secunia.com/advisories/23946"},{"name":"ADV-2007-0199","tags":["vdb-entry","x_refsource_VUPEN"],"url":"http://www.vupen.com/english/advisories/2007/0199"},{"name":"GLSA-200701-22","tags":["vendor-advisory","x_refsource_GENTOO"],"url":"http://www.gentoo.org/security/en/glsa/glsa-200701-22.xml"},{"name":"SUSE-SA:2007:012","tags":["vendor-advisory","x_refsource_SUSE"],"url":"http://www.novell.com/linux/security/advisories/2007_12_squid.html"},{"name":"MDKSA-2007:026","tags":["vendor-advisory","x_refsource_MANDRIVA"],"url":"http://www.mandriva.com/security/advisories?name=MDKSA-2007:026"},{"name":"squid-externalacl-dos(31525)","tags":["vdb-entry","x_refsource_XF"],"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/31525"},{"name":"USN-414-1","tags":["vendor-advisory","x_refsource_UBUNTU"],"url":"http://www.ubuntu.com/usn/usn-414-1"},{"name":"23805","tags":["third-party-advisory","x_refsource_SECUNIA"],"url":"http://secunia.com/advisories/23805"},{"name":"23767","tags":["third-party-advisory","x_refsource_SECUNIA"],"url":"http://secunia.com/advisories/23767"},{"name":"23889","tags":["third-party-advisory","x_refsource_SECUNIA"],"url":"http://secunia.com/advisories/23889"},{"tags":["x_refsource_CONFIRM"],"url":"http://www.squid-cache.org/bugs/show_bug.cgi?id=1848"}],"x_legacyV4Record":{"CVE_data_meta":{"ASSIGNER":"cve@mitre.org","ID":"CVE-2007-0248","STATE":"PUBLIC"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"n/a","version":{"version_data":[{"version_value":"n/a"}]}}]},"vendor_name":"n/a"}]}},"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"The aclMatchExternal function in Squid before 2.6.STABLE7 allows remote attackers to cause a denial of service (crash) by causing an external_acl queue overload, which triggers an infinite loop."}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"n/a"}]}]},"references":{"reference_data":[{"name":"http://www.squid-cache.org/Versions/v2/2.6/squid-2.6.STABLE7-RELEASENOTES.html#s12","refsource":"CONFIRM","url":"http://www.squid-cache.org/Versions/v2/2.6/squid-2.6.STABLE7-RELEASENOTES.html#s12"},{"name":"22203","refsource":"BID","url":"http://www.securityfocus.com/bid/22203"},{"name":"23921","refsource":"SECUNIA","url":"http://secunia.com/advisories/23921"},{"name":"23946","refsource":"SECUNIA","url":"http://secunia.com/advisories/23946"},{"name":"ADV-2007-0199","refsource":"VUPEN","url":"http://www.vupen.com/english/advisories/2007/0199"},{"name":"GLSA-200701-22","refsource":"GENTOO","url":"http://www.gentoo.org/security/en/glsa/glsa-200701-22.xml"},{"name":"SUSE-SA:2007:012","refsource":"SUSE","url":"http://www.novell.com/linux/security/advisories/2007_12_squid.html"},{"name":"MDKSA-2007:026","refsource":"MANDRIVA","url":"http://www.mandriva.com/security/advisories?name=MDKSA-2007:026"},{"name":"squid-externalacl-dos(31525)","refsource":"XF","url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/31525"},{"name":"USN-414-1","refsource":"UBUNTU","url":"http://www.ubuntu.com/usn/usn-414-1"},{"name":"23805","refsource":"SECUNIA","url":"http://secunia.com/advisories/23805"},{"name":"23767","refsource":"SECUNIA","url":"http://secunia.com/advisories/23767"},{"name":"23889","refsource":"SECUNIA","url":"http://secunia.com/advisories/23889"},{"name":"http://www.squid-cache.org/bugs/show_bug.cgi?id=1848","refsource":"CONFIRM","url":"http://www.squid-cache.org/bugs/show_bug.cgi?id=1848"}]}}}},"cveMetadata":{"assignerOrgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","assignerShortName":"mitre","cveId":"CVE-2007-0248","datePublished":"2007-01-16T18:00:00.000Z","dateReserved":"2007-01-16T00:00:00.000Z","dateUpdated":"2024-08-07T12:12:17.832Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.1"},"nvd":{"publishedDate":"2007-01-16 18:28:00","lastModifiedDate":"2026-04-23 00:35:47","problem_types":["NVD-CWE-Other","n/a"],"metrics":{"cvssMetricV2":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"2.0","vectorString":"AV:N/AC:L/Au:N/C:N/I:N/A:P","baseScore":5,"accessVector":"NETWORK","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"PARTIAL"},"baseSeverity":"MEDIUM","exploitabilityScore":10,"impactScore":2.9,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}]},"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:squid:squid:2.6.stable6:*:*:*:*:*:*:*","matchCriteriaId":"0BD0D706-FDE4-43EB-9769-B2922BBDCDC8"}]}]}]},"legacy_mitre":{"record":{"CveYear":"2007","CveId":"248","Ordinal":"1","Title":"CVE-2007-0248","CVE":"CVE-2007-0248","Year":"2007"},"notes":[{"CveYear":"2007","CveId":"248","Ordinal":"1","NoteData":"The aclMatchExternal function in Squid before 2.6.STABLE7 allows remote attackers to cause a denial of service (crash) by causing an external_acl queue overload, which triggers an infinite loop.","Type":"Description","Title":"CVE-2007-0248"},{"CveYear":"2007","CveId":"248","Ordinal":"2","NoteData":"2007-01-16","Type":"Other","Title":"Published"},{"CveYear":"2007","CveId":"248","Ordinal":"3","NoteData":"2017-07-28","Type":"Other","Title":"Modified"}]}}}