Vulnerability Details : CVE-2014-8147
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.
Vulnerability category: Execute codeDenial of service
Exploit prediction scoring system (EPSS) score for CVE-2014-8147
Probability of exploitation activity in the next 30 days: 2.65%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 89 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2014-8147
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
|---|---|---|---|---|---|
|
7.5
|
HIGH | AV:N/AC:L/Au:N/C:P/I:P/A:P |
10.0
|
6.4
|
NIST |
CWE ids for CVE-2014-8147
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Assigned by: nvd@nist.gov (Primary)
References for CVE-2014-8147
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http://seclists.org/fulldisclosure/2015/May/14
Full Disclosure: [CVE-2014-8146/8147] - ICU heap and integer overflows / I-C-U-FAILMailing List;Exploit;Third Party Advisory
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https://security.gentoo.org/glsa/201507-04
International Components for Unicode: Multiple vulnerabilities (GLSA 201507-04) — Gentoo securityThird Party Advisory
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http://www.kb.cert.org/vuls/id/602540
VU#602540 - ICU Project ICU4C library contains multiple overflow vulnerabilitiesThird Party Advisory;US Government Resource
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http://www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.html
Oracle Solaris Third Party Bulletin - October 2015Third Party Advisory
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https://support.apple.com/HT205267
About the security content of OS X El Capitan v10.11 - Apple SupportThird Party Advisory
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https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html
Oracle Critical Patch Update - April 2019
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http://lists.apple.com/archives/security-announce/2015/Sep/msg00005.html
Apple - Lists.apple.comMailing List
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http://www.securityfocus.com/bid/74457
ICU Project ICU4C Library Multiple Buffer Overflow VulnerabilitiesThird Party Advisory;VDB Entry
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http://lists.apple.com/archives/security-announce/2015/Sep/msg00008.html
Apple - Lists.apple.comMailing List
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http://bugs.icu-project.org/trac/changeset/37080
Changeset 37080 – Unicode ICU tracIssue Tracking;Vendor Advisory
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https://lists.apache.org/thread.html/9317fd092b257a0815434b116a8af8daea6e920b6673f4fd5583d5fe@%3Ccommits.druid.apache.org%3E
[GitHub] [incubator-druid] ccaominh opened a new pull request #8878: Address security vulnerabilities - Pony Mail
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http://openwall.com/lists/oss-security/2015/05/05/6
oss-security - [CVE-2014-8146/8147] - ICU heap and integer overflows / I-C-U-FAILMailing List
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http://www.debian.org/security/2015/dsa-3323
Debian -- Security Information -- DSA-3323-1 icuThird Party Advisory
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http://www.oracle.com/technetwork/topics/security/cpuoct2015-2367953.html
Oracle Critical Patch Update - October 2015Patch
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https://raw.githubusercontent.com/pedrib/PoC/master/generic/i-c-u-fail.txt
Exploit
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https://support.apple.com/HT205213
About the security content of watchOS 2 - Apple SupportThird Party Advisory
Products affected by CVE-2014-8147
- cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*
- cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*
- cpe:2.3:a:icu-project:international_components_for_unicode:*:*:*:*:*:c\/c\+\+:*:*