Vulnerability Report

CVE-2007-1856

Title: Paul Vixie Vixie Cron Denial of Service (DoS)

DoS

Proof Of Concept

No public PoC currently indexed for CVE-2007-1856.

CWE Category NVD-CWE-noinfo

Published Date Apr 18, 2007

Modified Date Jun 16, 2026

Exploit Status Not Found

Score 2.1 CVSS v2.0

Exploit Probability (EPSS)

0.38%

Vulnerability Summary

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 (cron failure) by creating hard links, which results in a failed st_nlink check in database.c.

Impacted Vendors

paul_vixie 1

Reference Links

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

CVSS v2.0

Source Entity [email protected]

Severity LOW

2.1

Access Vector

N/A

Authentication

N/A

RAW VECTOR AV:L/AC:L/Au:N/C:N/I:N/A:P

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2007-1856 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

June 16, 2026 MODIFIED

Vulnerability data updated via NVD.

April 09, 2025 MODIFIED

Vulnerability data or affected products updated.

April 18, 2007 PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector N/A

Complexity N/A

Privileges N/A

Interaction NONE

CVSS Vector String


                                    AV:L/AC:L/Au:N/C:N/I:N/A:P

Affected Stack

No specific products linked.