CVE-2014-8147

Name: CVE-2014-8147
Creator: NVD / NIST
Published: 2015-05-25T22:59:01.927+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 23.18%

Last modified Jun 17, 2026

CVE-2014-8147 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 23.18% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability

23.18%

97.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-189

Affected Software

Vendor	Product	Versions
Apple	Mac Os X	<= 10.10.4
Apple	Watchos	<= 1.0.1
Icu-Project	International Components For Unicode	< 55.1

References

http://bugs.icu-project.org/trac/changeset/37080Issue Tracking, Vendor Advisory
http://lists.apple.com/archives/security-announce/2015/Sep/msg00005.htmlMailing List
http://lists.apple.com/archives/security-announce/2015/Sep/msg00008.htmlMailing List
http://openwall.com/lists/oss-security/2015/05/05/6Mailing List
http://seclists.org/fulldisclosure/2015/May/14Exploit, Mailing List, Third Party Advisory
http://www.debian.org/security/2015/dsa-3323Third Party Advisory
http://www.kb.cert.org/vuls/id/602540Third Party Advisory, US Government Resource
http://www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.htmlThird Party Advisory
http://www.oracle.com/technetwork/topics/security/cpuoct2015-2367953.htmlPatch
http://www.securityfocus.com/bid/74457Third Party Advisory, VDB Entry
https://lists.apache.org/thread.html/9317fd092b257a0815434b116a8af8daea6e920b6673f4fd5583d5fe%40%3Ccommits.druid.apache.org%3E
https://raw.githubusercontent.com/pedrib/PoC/master/generic/i-c-u-fail.txtExploit
https://security.gentoo.org/glsa/201507-04Third Party Advisory
https://support.apple.com/HT205213Third Party Advisory
https://support.apple.com/HT205267Third Party Advisory
https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html
http://bugs.icu-project.org/trac/changeset/37080Issue Tracking, Vendor Advisory
http://lists.apple.com/archives/security-announce/2015/Sep/msg00005.htmlMailing List
http://lists.apple.com/archives/security-announce/2015/Sep/msg00008.htmlMailing List
http://openwall.com/lists/oss-security/2015/05/05/6Mailing List
http://seclists.org/fulldisclosure/2015/May/14Exploit, Mailing List, Third Party Advisory
http://www.debian.org/security/2015/dsa-3323Third Party Advisory
http://www.kb.cert.org/vuls/id/602540Third Party Advisory, US Government Resource
http://www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.htmlThird Party Advisory
http://www.oracle.com/technetwork/topics/security/cpuoct2015-2367953.htmlPatch
http://www.securityfocus.com/bid/74457Third Party Advisory, VDB Entry
https://lists.apache.org/thread.html/9317fd092b257a0815434b116a8af8daea6e920b6673f4fd5583d5fe%40%3Ccommits.druid.apache.org%3E
https://raw.githubusercontent.com/pedrib/PoC/master/generic/i-c-u-fail.txtExploit
https://security.gentoo.org/glsa/201507-04Third Party Advisory
https://support.apple.com/HT205213Third Party Advisory
https://support.apple.com/HT205267Third Party Advisory
https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html

Timeline

Published: May 25, 2015
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2014-8147?

How severe is CVE-2014-8147?

Severity scoring for CVE-2014-8147 is pending analysis. The EPSS model estimates a 23.18% probability of exploitation in the next 30 days.

How do I fix CVE-2014-8147?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2014-8147?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST