{"id":"CVE-2007-0248","aliases":["DEBIAN-CVE-2007-0248","EUVD-2007-0250","GHSA-w46f-hrch-xgr2"],"status":"published","title":"The aclMatchExternal function in Squid before 2.6.STABLE7 allows remote attackers to cause a...","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.","severity":{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.07076,"percentile":0.94261,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"published":"2007-01-16T18:00:00Z","modified":"2026-10-21T17:47:32Z","fixes":[{"ecosystem":"Debian:12","package":"squid","fixed_in":["2.6.5-4"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"squid","fixed_in":["2.6.5-4"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"squid","fixed_in":["2.6.5-4"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"squid","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.6.5-4"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"squid","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.6.5-4"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"squid","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.6.5-4"}]}]}],"products":[{"vendor":"squid","product":"squid"}],"references":[{"url":"http://www.squid-cache.org/Versions/v2/2.6/squid-2.6.STABLE7-RELEASENOTES.html#s12","tags":["x_refsource_CONFIRM","x_transferred","web"]},{"url":"http://www.securityfocus.com/bid/22203","tags":["vdb-entry","x_refsource_BID","x_transferred","web"]},{"url":"http://secunia.com/advisories/23921","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","advisory"]},{"url":"http://secunia.com/advisories/23946","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","advisory"]},{"url":"http://www.vupen.com/english/advisories/2007/0199","tags":["vdb-entry","x_refsource_VUPEN","x_transferred","advisory"]},{"url":"http://www.gentoo.org/security/en/glsa/glsa-200701-22.xml","tags":["vendor-advisory","x_refsource_GENTOO","x_transferred","web"]},{"url":"http://www.novell.com/linux/security/advisories/2007_12_squid.html","tags":["vendor-advisory","x_refsource_SUSE","x_transferred","advisory"]},{"url":"http://www.mandriva.com/security/advisories?name=MDKSA-2007:026","tags":["vendor-advisory","x_refsource_MANDRIVA","x_transferred","advisory"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/31525","tags":["vdb-entry","x_refsource_XF","x_transferred","web"]},{"url":"http://www.ubuntu.com/usn/usn-414-1","tags":["vendor-advisory","x_refsource_UBUNTU","x_transferred","advisory"]},{"url":"http://secunia.com/advisories/23805","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","advisory"]},{"url":"http://secunia.com/advisories/23767","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","Patch","Vendor Advisory","advisory","fix"]},{"url":"http://secunia.com/advisories/23889","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","advisory"]},{"url":"http://www.squid-cache.org/bugs/show_bug.cgi?id=1848","tags":["x_refsource_CONFIRM","x_transferred","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2007-0248"},{"url":"https://github.com/advisories/GHSA-w46f-hrch-xgr2"},{"url":"https://security-tracker.debian.org/tracker/CVE-2007-0248","tags":["advisory"]}],"sources":{"cve":[{"id":"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.","status":"published","published":"2007-01-16T18:00:00Z","modified":"2024-08-07T12:12:17.832Z","updated_at":"2026-11-02T13:34:15.046008Z"}],"euvd":[{"id":"EUVD-2007-0250","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.","status":"published","published":"2007-01-16T18:00:00Z","modified":"2024-08-07T12:12:17Z","updated_at":"2026-11-03T01:38:31.603486Z"}],"ghsa":[{"id":"GHSA-w46f-hrch-xgr2","title":"The aclMatchExternal function in Squid before 2.6.STABLE7 allows remote attackers to cause a...","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.","status":"published","published":"2022-05-01T17:42:42Z","modified":"2023-01-31T05:02:54Z","updated_at":"2026-11-02T14:48:21.760844Z"}],"nvd":[{"id":"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.","status":"published","published":"2007-01-16T18:28:00Z","modified":"2026-06-16T22:35:12.57Z","cvss":[{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:01:11.752648Z"}],"osv":[{"id":"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.","status":"published","published":"2007-01-16T18:28:00Z","modified":"2026-04-10T03:38:39.972937Z","updated_at":"2026-11-02T15:43:56.865964Z"},{"id":"DEBIAN-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.","status":"published","published":"2007-01-16T18:28:00Z","modified":"2026-10-21T17:47:32.939384907Z","updated_at":"2026-11-02T15:45:23.105674Z"}]}}