A vulnerability has been found in Vixie cron, allowing local attackers to conduct symlink attacks.
|Package||sys-process/vixie-cron on all architectures|
|Affected versions||< 4.1-r14|
|Unaffected versions||>= 4.1-r14|
Paul Vixie’s cron daemon, a fully featured crond implementation.
Vixie cron contains a race condition relating to atime and mtime values of temporary files.
A local attacker could change the modification time of files, possibly resulting in a Denial of Service condition via a symlink attack.
There is no known workaround at this time.
All Vixie cron users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=sys-process/vixie-cron-4.1-r14"
November 07, 2013
November 07, 2013: 1