icu was updated to fix two security issues. These security issues were fixed: - CVE-2014-8147: The resolveImplicitLevels function in common/ubidi.c in the Unicode Bidirectional Algorithm implementation in ICU4C in International Components for Unicode used an integer data type that is inconsistent with a header file, which allowed remote attackers to cause a denial of service or possibly execute arbitrary code via crafted text . - CVE-2014-8146: The resolveImplicitLevels function in common/ubidi.c in the Unicode Bidirectional Algorithm implementation in ICU4C in International Components for Unicode did not properly track directionally isolated pieces of text, which allowed remote attackers to cause a denial of service or possibly execute arbitrary code via crafted text . - CVE-2016-6293: The uloc_acceptLanguageFromHTTP function in common/uloc.cpp in International Components for Unicode for C/C++ did not ensure that there is a "\0" character at the end of a certain temporary array, which allowed remote attackers to cause a denial of service or possibly have unspecified other impact via a call with a long httpAcceptLanguage argument . - CVE-2017-7868: International Components for Unicode for C/C++ 2017-02-13 has an out-of-bounds write caused by a heap-based buffer overflow related to the utf8TextAccess function in common/utext.cpp and the utext_moveIndex32* function - CVE-2017-7867: International Components for Unicode for C/C++ 2017-02-13 has an out-of-bounds write caused by a heap-based buffer overflow related to the utf8TextAccess function in common/utext.cpp and the utext_setNativeIndex* function - CVE-2017-14952: Double free in i18n/zonemeta.cpp in International Components for Unicode for C/C++ allowed remote attackers to execute arbitrary code via a crafted string, aka a redundant UVector entry clean up function call issue - CVE-2017-17484: The ucnv_UTF8FromUTF8 function in ucnv_u8.cpp in International Components for Unicode for C/C++ mishandled ucnv_convertEx calls for UTF-8 to UTF-8 conversion, which allowed remote attackers to cause a denial of service or possibly have unspecified other impact via a crafted string, as demonstrated by ZNC - CVE-2017-15422: An integer overflow in icu during persian calendar date processing could lead to incorrect years shown