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Alerts This Week
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Gentoo: GLSA-201311-05 Moderate Alert on OpenSSH Security Vulnerability

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Calendar Grey November 7, 2013
Scroller Gentoo
The Vixie cron flaw enables local users to perform symlink exploits leading to service disruptions. Immediate update is advised.
A vulnerability has been found in Vixie cron, allowing local attackers to conduct symlink attacks.

Summary

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

Topics%20covered

Topics Covered

security advisory denial of service Gentoo patch local attack symlink Vixie cron

Resolution

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

References

[ 1 ] CVE-2010-0424 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2010-0424

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: https://security.gentoo.org/glsa/201311-04
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Concerns

Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users' machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.

Severity: Normal
Title: Vixie cron: Denial of Service
Date: November 07, 2013
Bugs: #308055
ID: 201311-04

Topics%20covered

Topics Covered

security advisory denial of service Gentoo patch local attack symlink Vixie cron

Synopsis

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

Background

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

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Affected Packages

------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 sys-process/vixie-cron < 4.1-r14 >= 4.1-r14

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.