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[ GLSA 201311-04 ] Vixie cron: Denial of Service
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GLSA
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PostPosted: Thu Nov 07, 2013 3:26 am    Post subject: [ GLSA 201311-04 ] Vixie cron: Denial of Service Reply with quote

Gentoo Linux Security Advisory

Title: Vixie cron: Denial of Service (GLSA 201311-04)
Severity: normal
Exploitable: local
Date: November 07, 2013
Bug(s): #308055
ID: 201311-04

Synopsis

A vulnerability has been found in Vixie cron, allowing local
attackers to conduct symlink attacks.


Background

Paul Vixie’s cron daemon, a fully featured crond implementation.

Affected Packages

Package: sys-process/vixie-cron
Vulnerable: < 4.1-r14
Unaffected: >= 4.1-r14
Architectures: All supported architectures


Description

Vixie cron contains a race condition relating to atime and mtime values
of temporary files.


Impact

A local attacker could change the modification time of files, possibly
resulting in a Denial of Service condition via a symlink attack.


Workaround

There is no known workaround at this time.

Resolution

All Vixie cron users should upgrade to the latest version:
Code:
# emerge --sync
      # emerge --ask --oneshot --verbose ">=sys-process/vixie-cron-4.1-r14"
   


References

CVE-2010-0424
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