CVEs-PoC/2014/CVE-2014-8146.md

CVE-2014-8146

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 does not properly track directionally isolated pieces of text, which allows remote attackers to cause a denial of service (heap-based buffer overflow) or possibly execute arbitrary code via crafted text.

POC

Reference

• http://bugs.icu-project.org/trac/changeset/37162
• http://bugs.icu-project.org/trac/changeset/37162
• http://openwall.com/lists/oss-security/2015/05/05/6
• http://openwall.com/lists/oss-security/2015/05/05/6
• http://seclists.org/fulldisclosure/2015/May/14
• http://seclists.org/fulldisclosure/2015/May/14
• http://www.kb.cert.org/vuls/id/602540
• 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/bulletinoct2015-2511968.html
• http://www.oracle.com/technetwork/topics/security/cpuoct2015-2367953.html
• http://www.oracle.com/technetwork/topics/security/cpuoct2015-2367953.html

Github

• https://github.com/ARPSyndicate/cvemon