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{"id":105,"date":"2005-09-21T14:13:27","date_gmt":"2005-09-21T12:13:27","guid":{"rendered":""},"modified":"2021-02-10T00:03:39","modified_gmt":"2021-02-09T23:03:39","slug":"pufferueberlauf-mysql_105","status":"publish","type":"post","link":"https:\/\/opendb.de\/mysql\/pufferueberlauf-mysql_105\/","title":{"rendered":"Puffer\u00fcberlauf in MySQL"},"content":{"rendered":"Mehrere Linux-Distributoren stellen Updates f\u00fcr die Open-Source-Datenbank MySQL bereit. Sie beseitigen einen Fehler, durch den sich m\u00f6glicherweise aus dem Netz eingeschleuster Code mit den Rechten des Dienstes ausf\u00fchren l\u00e4sst. Um den Puffer\u00fcberlauf auszul\u00f6sen, muss der benutzte Zugang allerdings die Berechtigung zum Anlegen neuer Funktionen haben.<\/p>\n
Der Fehler wird einmal mehr durch Zeichenpuffer fester Gr\u00f6\u00dfe verursacht. Dieser l\u00e4sst sich aus dem Netz mit \u00fcberlangen Inhalten \u00fcberschreiben. Dies ist besonders im Zusammenspiel mit fehlerhafter Software relevant, die MySQL als Back-End einsetzt — hier k\u00f6nnten Berechtigungen zum Anlegen benutzerdefinierter Funktionen vorliegen.<\/p>\n
Die MySQL-Entwickler haben die L\u00fccke bereits vor einiger Zeit stillschweigend behoben. Versionen ab 4.0.25, 4.1.13 und der Beta 5.0.7 der Datenbank enthalten den Fehler nicht mehr. Am 8. August ver\u00f6ffentlichten die Entdecker von Application Security ein Advisory, stuften das Problem aber nicht als kritisch ein. Allerdings haben mittlerweile diverse Sicherheitsdatenbanken wie Securityfocus den Fehler auf kritisch hochgestuft. Nun folgen die f\u00e4lligen Updates der Distributoren, Mandriva und Ubuntu er\u00f6ffnen den Reigen. <\/p>\n
Quelle: http:\/\/www.heise.de\/newsticker\/meldung\/63920<\/a><\/p>","protected":false},"excerpt":{"rendered":"Mehrere Linux-Distributoren stellen Updates f\u00fcr die Open-Source-Datenbank MySQL bereit. Sie beseitigen einen Fehler, durch den sich m\u00f6glicherweise aus dem Netz eingeschleuster Code mit den Rechten des Dienstes ausf\u00fchren l\u00e4sst. Um den Puffer\u00fcberlauf auszul\u00f6sen, muss der benutzte Zugang allerdings die Berechtigung zum Anlegen neuer Funktionen haben.<\/p>\n
[…]<\/a><\/p>\n<\/div>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"class_list":{"0":"post-105","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-mysql"},"_links":{"self":[{"href":"https:\/\/opendb.de\/wp-json\/wp\/v2\/posts\/105","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/opendb.de\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/opendb.de\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/opendb.de\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/opendb.de\/wp-json\/wp\/v2\/comments?post=105"}],"version-history":[{"count":0,"href":"https:\/\/opendb.de\/wp-json\/wp\/v2\/posts\/105\/revisions"}],"wp:attachment":[{"href":"https:\/\/opendb.de\/wp-json\/wp\/v2\/media?parent=105"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/opendb.de\/wp-json\/wp\/v2\/categories?post=105"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/opendb.de\/wp-json\/wp\/v2\/tags?post=105"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}