What’s Vulnerable › Vulnerabilities

CVE-2014-7923

• Severity: high (CVSS 7.5 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2015-01-22 · updated 2026-06-17
• Weakness: CWE-17

Description

The Regular Expressions package in International Components for Unicode (ICU) 52 before SVN revision 292944, as used in Google Chrome before 40.0.2214.91, allows remote attackers to cause a denial of service (memory corruption) or possibly have unspecified other impact via vectors related to a look-behind expression.

Affected products

• Canonical Ubuntu Linux: 14.04, 14.10
• Google Chrome: through 40.0.2214.85
• Icu-Project International Components For Unicode: before 55.1 — fixed in 55.1
• Opensuse: 13.1, 13.2
• Oracle Communications Messaging Server: 7.0.5, 8.0
• RedHat Enterprise Linux Desktop Supplementary: 6.0
• RedHat Enterprise Linux Server Supplementary: 6.0
• RedHat Enterprise Linux Server Supplementary Eus: 6.6.z
• RedHat Enterprise Linux Workstation Supplementary: 6.0

How to fix

Upgrade to a fixed version: Icu-Project International Components For Unicode 55.1. Check the vendor advisory for mitigations.

References

• http://advisories.mageia.org/MGASA-2015-0047.html
• http://bugs.icu-project.org/trac/ticket/11370
• http://googlechromereleases.blogspot.com/2015/01/stable-update.html
• http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00005.html
• http://rhn.redhat.com/errata/RHSA-2015-0093.html
• http://secunia.com/advisories/62383
• http://secunia.com/advisories/62575
• http://secunia.com/advisories/62665
• http://security.gentoo.org/glsa/glsa-201502-13.xml
• http://www.oracle.com/technetwork/topics/security/bulletinapr2015-2511959.html
• http://www.oracle.com/technetwork/topics/security/cpuoct2015-2367953.html
• http://www.securityfocus.com/bid/72288

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