CVE-2014-8147 Information

Description

The resolveImplicitLevels function in common/ubidi.c in the Unicode Bidirectional Algorithm implementation in ICU4C in International Components for Unicode (ICU) before 55.1 uses an integer data type that is inconsistent with a header file which allows remote attackers to cause a denial of service (incorrect malloc followed by invalid free) or possibly execute arbitrary code via crafted text.

Reference

http://bugs.icu-project.org/trac/changeset/37080 http://lists.apple.com/archives/security-announce/2015/Sep/msg00005.html http://lists.apple.com/archives/security-announce/2015/Sep/msg00008.html http://openwall.com/lists/oss-security/2015/05/05/6 http://seclists.org/fulldisclosure/2015/May/14 http://www.debian.org/security/2015/dsa-3323 http://www.kb.cert.org/vuls/id/602540 http://www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.html http://www.oracle.com/technetwork/topics/security/cpuoct2015-2367953.html http://www.securityfocus.com/bid/74457 https://lists.apache.org/thread.html/9317fd092b257a0815434b116a8af8daea6e920b6673f4fd5583d5fe@3Ccommits.druid.apache.org3E https://raw.githubusercontent.com/pedrib/PoC/master/generic/i-c-u-fail.txt https://security.gentoo.org/glsa/201507-04 https://support.apple.com/HT205213 https://support.apple.com/HT205267 https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html