{"id":"MGASA-2015-0430","summary":"Updated libebml packages fix security vulnerability","details":"In EbmlMaster::Read() in libebml before 1.3.3, when the parser encountered\na deeply nested element with an infinite size then a following element of\nan upper level was not propagated correctly. Instead the element with the\ninfinite size was added into the EBML element tree a second time resulting\nin memory access after freeing it and multiple attempts to free the same\nmemory address during destruction (TALOS-CAN-0037).\n\nIn EbmlUnicodeString::UpdateFromUTF8() in libebml before 1.3.3, when\nreading from a UTF-8 string in which the length indicated by a UTF-8\ncharacter's first byte exceeds the string's actual number of bytes the\nparser would access beyond the end of the string resulting in a heap\ninformation leak (TALOS-CAN-0036).\n\nThe libebml package has been updated to version 1.3.3, which fixes these\nissues and other bugs, including another invalid memory access issue.\n\nThe libmatroska package has also been rebuilt against the updated libebml\nand updated to version 1.4.4, which also fixes an invalid memory access\nissue and other bugs.  See the release announcements for details.\n","modified":"2026-04-16T04:27:58.426055Z","published":"2015-11-05T22:46:03Z","references":[{"type":"ADVISORY","url":"https://advisories.mageia.org/MGASA-2015-0430.html"},{"type":"REPORT","url":"https://bugs.mageia.org/show_bug.cgi?id=17004"},{"type":"WEB","url":"http://talosintel.com/vulnerability-reports/"},{"type":"WEB","url":"http://lists.matroska.org/pipermail/matroska-users/2015-October/006981.html"},{"type":"WEB","url":"http://lists.matroska.org/pipermail/matroska-users/2015-October/006985.html"}],"affected":[{"package":{"name":"libebml","ecosystem":"Mageia:5","purl":"pkg:rpm/mageia/libebml?arch=source&distro=mageia-5"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.3.3-1.mga5"}]}],"ecosystem_specific":{"section":"core"},"database_specific":{"source":"https://advisories.mageia.org/MGASA-2015-0430.json"}},{"package":{"name":"libmatroska","ecosystem":"Mageia:5","purl":"pkg:rpm/mageia/libmatroska?arch=source&distro=mageia-5"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.4.4-1.mga5"}]}],"ecosystem_specific":{"section":"core"},"database_specific":{"source":"https://advisories.mageia.org/MGASA-2015-0430.json"}}],"schema_version":"1.7.5","credits":[{"name":"Mageia","contact":["https://wiki.mageia.org/en/Packages_Security_Team"],"type":"COORDINATOR"}]}