In libebml before 1.4.5, an integer overflow in MemIOCallback.cpp can occur when reading or writing. It may result in buffer overflows.Referenceshttps://github.com/Matroska-Org/libebml/issues/147https://github.com/Matroska-Org/libebml/pull/148https://github.com/Matroska-Org/libebml/blob/v1.x/NEWS.mdhttps://github.com/Matroska-Org/libebml/compare/release-1.4.4...release-1.4.5https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BJUXVOIRWPP7OFYUKQZDNJTSLWCPIZBH/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XNANFT4P6KL4WDQ3TV6QQ44NSC7WKLAB/
