CVE-2014-8147 EXPLOIT
7.5
HIGH · CVSS 2.0 · EPSS 23.2% (pctl 98)
Patch early
A public exploit exists.
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.
Scoring
| CVSS | 7.5 (HIGH, v2.0) |
|---|---|
| Vector | AV:N/AC:L/Au:N/C:P/I:P/A:P |
| EPSS | 23.2% — more likely to be exploited than 98% of all CVEs |
| Weakness | CWE-189 |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2015-05-25 |
| Last modified | 2026-06-17 |
Affected (3)
| Vendor | Product |
|---|---|
| apple | mac os x |
| apple | watchos |
| icu-project | international components for unicode |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | ICU library 52 < 54 - Multiple Vulnerabilities | 2015-06-10 |
References
- 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%40%3Ccommits.druid.apache.org%3E
- 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
- 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
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