CVE-2014-8147
First published: Mon May 25 2015(Updated: )
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.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Apple iOS and macOS | <=10.10.4 | |
| Apple iOS, iPadOS, and watchOS | <=1.0.1 | |
| ICU (International Components for Unicode) | <55.1 |
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Reference Links
- 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.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
- https://lists.apache.org/thread.html/9317fd092b257a0815434b116a8af8daea6e920b6673f4fd5583d5fe%40%3Ccommits.druid.apache.org%3E
Frequently Asked Questions
What is the severity of CVE-2014-8147?
CVE-2014-8147 is considered a medium severity vulnerability that can lead to denial of service.
How do I fix CVE-2014-8147?
To fix CVE-2014-8147, update to ICU4C version 55.1 or later.
What software is affected by CVE-2014-8147?
CVE-2014-8147 affects macOS Yosemite versions up to 10.10.4, watchOS 1.0.1, and ICU versions prior to 55.1.
What kind of attack is possible with CVE-2014-8147?
CVE-2014-8147 allows remote attackers to exploit the vulnerability to cause a denial of service.
Can CVE-2014-8147 be exploited remotely?
Yes, CVE-2014-8147 can be exploited remotely due to its nature in the Unicode Bidirectional Algorithm.
- agent/type
- agent/weakness
- agent/remedy
- agent/severity
- agent/author
- agent/description
- collector/mitre-cve
- source/MITRE
- agent/references
- agent/last-modified-date
- agent/first-publish-date
- agent/event
- agent/source
- agent/tags
- agent/softwarecombine
- collector/nvd-index
- agent/software-canonical-lookup-request
- vendor/apple
- canonical/apple ios and macos
- version/apple ios and macos/10.10.4
- canonical/apple ios, ipados, and watchos
- version/apple ios, ipados, and watchos/1.0.1
- vendor/icu-project
- canonical/icu (international components for unicode)