Multiple vulnerabilities in sysstat

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Updated April 06, 2004

1.  Gentoo Linux Security Advisory

Version Information

Advisory Reference GLSA 200404-04 / sysstat
Release Date April 06, 2004
Latest Revision April 06, 2004: 01
Impact normal
Exploitable local
Package Vulnerable versions Unaffected versions Architecture(s)
app-admin/sysstat < 5.0.2 >= 5.0.2 x86 ppc sparc amd64

Related bugreports: #45159

Synopsis

Multiple vulnerabilities in the way sysstat handles symlinks may allow an attacker to execute arbitrary code or overwrite arbitrary files

2.  Impact Information

Background

sysstat is a package containing a number of performance monitoring utilities for Linux, including sar, mpstat, iostat and sa tools

Description

There are two vulnerabilities in the way sysstat handles symlinks:

  1. The isag utility, which displays sysstat data in a graphical format, creates a temporary file in an insecure manner.
  2. Two scripts in the sysstat package, post and trigger, create temporary files in an insecure manner.

Impact

Both vulnerabilities may allow an attacker to overwrite arbitrary files under the permissions of the user executing any of the affected utilities.

3.  Resolution Information

Workaround

A workaround is not currently known for this issue. All users are advised to upgrade to the latest version of the affected package.

Resolution

Systat users should upgrade to version 4.2 or later:

Code Listing 3.1: Resolution

# emerge sync

# emerge -pv ">=app-admin/sysstat-5.0.2"
# emerge ">=app-admin/sysstat-5.0.2"

4.  References