[ GLSA 201311-16 ] fcron: Information disclosure

[GLSA]

Gentoo Linux Security Advisory

Title: fcron: Information disclosure (GLSA 201311-16)
Severity: low
Exploitable: local
Date: November 25, 2013
Bug(s): #308075
ID: 201311-16

Synopsis

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


Background

fcron is a periodic command scheduler for Unix-based systems

Affected Packages

Package: sys-process/fcron
Vulnerable: < 3.0.5-r2
Unaffected: >= 3.0.5-r2
Architectures: All supported architectures


Description

The fcrontab function contains a race condition relating to symlinks.

Impact

A local attacker could perform symlink attacks to read arbitrary files
with the privileges of the user running the application.


Workaround

There is no known workaround at this time.

Resolution

All fcron users should upgrade to the latest version: